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<span id="896">896</span>
</pre><pre class='rust '>
<span class='kw'>use</span> <span class='ident'>libc</span>::{<span class='ident'>c_int</span>, <span class='ident'>c_uint</span>, <span class='ident'>c_ulong</span>};
<span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>io</span>;
<span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>io</span>::<span class='ident'>prelude</span>::<span class='op'>*</span>;
<span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>iter</span>::<span class='ident'>repeat</span>;
<span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>mem</span>;
<span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>ptr</span>;
<span class='kw'>use</span> <span class='ident'>bio</span>::<span class='ident'>MemBio</span>;

<span class='kw'>use</span> <span class='ident'>crypto</span>::<span class='ident'>HashTypeInternals</span>;
<span class='kw'>use</span> <span class='ident'>crypto</span>::<span class='ident'>hash</span>;
<span class='kw'>use</span> <span class='ident'>crypto</span>::<span class='ident'>hash</span>::<span class='ident'>Type</span> <span class='kw'>as</span> <span class='ident'>HashType</span>;
<span class='kw'>use</span> <span class='ident'>ffi</span>;
<span class='kw'>use</span> <span class='ident'>ssl</span>::<span class='ident'>error</span>::{<span class='ident'>SslError</span>, <span class='ident'>StreamError</span>};
<span class='kw'>use</span> <span class='ident'>crypto</span>::<span class='ident'>rsa</span>::<span class='ident'>RSA</span>;

<span class='attribute'>#[<span class='ident'>derive</span>(<span class='ident'>Copy</span>, <span class='ident'>Clone</span>)]</span>
<span class='kw'>pub</span> <span class='kw'>enum</span> <span class='ident'>Parts</span> {
    <span class='ident'>Neither</span>,
    <span class='ident'>Public</span>,
    <span class='ident'>Both</span>,
}

<span class='doccomment'>/// Represents a role an asymmetric key might be appropriate for.</span>
<span class='attribute'>#[<span class='ident'>derive</span>(<span class='ident'>Copy</span>, <span class='ident'>Clone</span>)]</span>
<span class='kw'>pub</span> <span class='kw'>enum</span> <span class='ident'>Role</span> {
    <span class='ident'>Encrypt</span>,
    <span class='ident'>Decrypt</span>,
    <span class='ident'>Sign</span>,
    <span class='ident'>Verify</span>,
}

<span class='doccomment'>/// Type of encryption padding to use.</span>
<span class='attribute'>#[<span class='ident'>derive</span>(<span class='ident'>Copy</span>, <span class='ident'>Clone</span>)]</span>
<span class='kw'>pub</span> <span class='kw'>enum</span> <span class='ident'>EncryptionPadding</span> {
    <span class='ident'>OAEP</span>,
    <span class='ident'>PKCS1v15</span>,
}

<span class='kw'>fn</span> <span class='ident'>openssl_padding_code</span>(<span class='ident'>padding</span>: <span class='ident'>EncryptionPadding</span>) <span class='op'>-&gt;</span> <span class='ident'>c_int</span> {
    <span class='kw'>match</span> <span class='ident'>padding</span> {
        <span class='ident'>EncryptionPadding</span>::<span class='ident'>OAEP</span> <span class='op'>=&gt;</span> <span class='number'>4</span>,
        <span class='ident'>EncryptionPadding</span>::<span class='ident'>PKCS1v15</span> <span class='op'>=&gt;</span> <span class='number'>1</span>,
    }
}

<span class='kw'>pub</span> <span class='kw'>struct</span> <span class='ident'>PKey</span> {
    <span class='ident'>evp</span>: <span class='op'>*</span><span class='kw-2'>mut</span> <span class='ident'>ffi</span>::<span class='ident'>EVP_PKEY</span>,
    <span class='ident'>parts</span>: <span class='ident'>Parts</span>,
}

<span class='kw'>unsafe</span> <span class='kw'>impl</span> <span class='ident'>Send</span> <span class='kw'>for</span> <span class='ident'>PKey</span> {}
<span class='kw'>unsafe</span> <span class='kw'>impl</span> <span class='ident'>Sync</span> <span class='kw'>for</span> <span class='ident'>PKey</span> {}

<span class='doccomment'>/// Represents a public key, optionally with a private key attached.</span>
<span class='kw'>impl</span> <span class='ident'>PKey</span> {
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>new</span>() <span class='op'>-&gt;</span> <span class='ident'>PKey</span> {
        <span class='kw'>unsafe</span> {
            <span class='ident'>ffi</span>::<span class='ident'>init</span>();

            <span class='ident'>PKey</span> {
                <span class='ident'>evp</span>: <span class='ident'>ffi</span>::<span class='ident'>EVP_PKEY_new</span>(),
                <span class='ident'>parts</span>: <span class='ident'>Parts</span>::<span class='ident'>Neither</span>,
            }
        }
    }

    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>from_handle</span>(<span class='ident'>handle</span>: <span class='op'>*</span><span class='kw-2'>mut</span> <span class='ident'>ffi</span>::<span class='ident'>EVP_PKEY</span>, <span class='ident'>parts</span>: <span class='ident'>Parts</span>) <span class='op'>-&gt;</span> <span class='ident'>PKey</span> {
        <span class='ident'>ffi</span>::<span class='ident'>init</span>();
        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>handle</span>.<span class='ident'>is_null</span>());

        <span class='ident'>PKey</span> {
            <span class='ident'>evp</span>: <span class='ident'>handle</span>,
            <span class='ident'>parts</span>: <span class='ident'>parts</span>,
        }
    }

    <span class='doccomment'>/// Reads private key from PEM, takes ownership of handle</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>private_key_from_pem</span><span class='op'>&lt;</span><span class='ident'>R</span><span class='op'>&gt;</span>(<span class='ident'>reader</span>: <span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='ident'>R</span>) <span class='op'>-&gt;</span> <span class='prelude-ty'>Result</span><span class='op'>&lt;</span><span class='ident'>PKey</span>, <span class='ident'>SslError</span><span class='op'>&gt;</span>
        <span class='kw'>where</span> <span class='ident'>R</span>: <span class='ident'>Read</span>
    {
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>mem_bio</span> <span class='op'>=</span> <span class='macro'>try</span><span class='macro'>!</span>(<span class='ident'>MemBio</span>::<span class='ident'>new</span>());
        <span class='macro'>try</span><span class='macro'>!</span>(<span class='ident'>io</span>::<span class='ident'>copy</span>(<span class='ident'>reader</span>, <span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='ident'>mem_bio</span>).<span class='ident'>map_err</span>(<span class='ident'>StreamError</span>));

        <span class='kw'>unsafe</span> {
            <span class='kw'>let</span> <span class='ident'>evp</span> <span class='op'>=</span> <span class='macro'>try_ssl_null</span><span class='macro'>!</span>(<span class='ident'>ffi</span>::<span class='ident'>PEM_read_bio_PrivateKey</span>(<span class='ident'>mem_bio</span>.<span class='ident'>get_handle</span>(),
                                                                 <span class='ident'>ptr</span>::<span class='ident'>null_mut</span>(),
                                                                 <span class='prelude-val'>None</span>,
                                                                 <span class='ident'>ptr</span>::<span class='ident'>null_mut</span>()));
            <span class='prelude-val'>Ok</span>(<span class='ident'>PKey</span> {
                <span class='ident'>evp</span>: <span class='ident'>evp</span> <span class='kw'>as</span> <span class='op'>*</span><span class='kw-2'>mut</span> <span class='ident'>ffi</span>::<span class='ident'>EVP_PKEY</span>,
                <span class='ident'>parts</span>: <span class='ident'>Parts</span>::<span class='ident'>Both</span>,
            })
        }
    }

    <span class='doccomment'>/// Reads public key from PEM, takes ownership of handle</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>public_key_from_pem</span><span class='op'>&lt;</span><span class='ident'>R</span><span class='op'>&gt;</span>(<span class='ident'>reader</span>: <span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='ident'>R</span>) <span class='op'>-&gt;</span> <span class='prelude-ty'>Result</span><span class='op'>&lt;</span><span class='ident'>PKey</span>, <span class='ident'>SslError</span><span class='op'>&gt;</span>
        <span class='kw'>where</span> <span class='ident'>R</span>: <span class='ident'>Read</span>
    {
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>mem_bio</span> <span class='op'>=</span> <span class='macro'>try</span><span class='macro'>!</span>(<span class='ident'>MemBio</span>::<span class='ident'>new</span>());
        <span class='macro'>try</span><span class='macro'>!</span>(<span class='ident'>io</span>::<span class='ident'>copy</span>(<span class='ident'>reader</span>, <span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='ident'>mem_bio</span>).<span class='ident'>map_err</span>(<span class='ident'>StreamError</span>));

        <span class='kw'>unsafe</span> {
            <span class='kw'>let</span> <span class='ident'>evp</span> <span class='op'>=</span> <span class='macro'>try_ssl_null</span><span class='macro'>!</span>(<span class='ident'>ffi</span>::<span class='ident'>PEM_read_bio_PUBKEY</span>(<span class='ident'>mem_bio</span>.<span class='ident'>get_handle</span>(),
                                                             <span class='ident'>ptr</span>::<span class='ident'>null_mut</span>(),
                                                             <span class='prelude-val'>None</span>,
                                                             <span class='ident'>ptr</span>::<span class='ident'>null_mut</span>()));
            <span class='prelude-val'>Ok</span>(<span class='ident'>PKey</span> {
                <span class='ident'>evp</span>: <span class='ident'>evp</span> <span class='kw'>as</span> <span class='op'>*</span><span class='kw-2'>mut</span> <span class='ident'>ffi</span>::<span class='ident'>EVP_PKEY</span>,
                <span class='ident'>parts</span>: <span class='ident'>Parts</span>::<span class='ident'>Public</span>,
            })
        }
    }

    <span class='doccomment'>/// Reads an RSA private key from PEM, takes ownership of handle</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>private_rsa_key_from_pem</span><span class='op'>&lt;</span><span class='ident'>R</span><span class='op'>&gt;</span>(<span class='ident'>reader</span>: <span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='ident'>R</span>) <span class='op'>-&gt;</span> <span class='prelude-ty'>Result</span><span class='op'>&lt;</span><span class='ident'>PKey</span>, <span class='ident'>SslError</span><span class='op'>&gt;</span>
        <span class='kw'>where</span> <span class='ident'>R</span>: <span class='ident'>Read</span>
    {
        <span class='kw'>let</span> <span class='ident'>rsa</span> <span class='op'>=</span> <span class='macro'>try</span><span class='macro'>!</span>(<span class='ident'>RSA</span>::<span class='ident'>private_key_from_pem</span>(<span class='ident'>reader</span>));
        <span class='kw'>unsafe</span> {
            <span class='kw'>let</span> <span class='ident'>evp</span> <span class='op'>=</span> <span class='macro'>try_ssl_null</span><span class='macro'>!</span>(<span class='ident'>ffi</span>::<span class='ident'>EVP_PKEY_new</span>());
            <span class='macro'>try_ssl</span><span class='macro'>!</span>(<span class='ident'>ffi</span>::<span class='ident'>EVP_PKEY_set1_RSA</span>(<span class='ident'>evp</span>, <span class='ident'>rsa</span>.<span class='ident'>as_ptr</span>()));

            <span class='prelude-val'>Ok</span>(<span class='ident'>PKey</span> {
                <span class='ident'>evp</span>: <span class='ident'>evp</span>,
                <span class='ident'>parts</span>: <span class='ident'>Parts</span>::<span class='ident'>Public</span>,
            })
        }
    }

    <span class='doccomment'>/// Reads an RSA public key from PEM, takes ownership of handle</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>public_rsa_key_from_pem</span><span class='op'>&lt;</span><span class='ident'>R</span><span class='op'>&gt;</span>(<span class='ident'>reader</span>: <span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='ident'>R</span>) <span class='op'>-&gt;</span> <span class='prelude-ty'>Result</span><span class='op'>&lt;</span><span class='ident'>PKey</span>, <span class='ident'>SslError</span><span class='op'>&gt;</span>
        <span class='kw'>where</span> <span class='ident'>R</span>: <span class='ident'>Read</span>
    {
        <span class='kw'>let</span> <span class='ident'>rsa</span> <span class='op'>=</span> <span class='macro'>try</span><span class='macro'>!</span>(<span class='ident'>RSA</span>::<span class='ident'>public_key_from_pem</span>(<span class='ident'>reader</span>));
        <span class='kw'>unsafe</span> {
            <span class='kw'>let</span> <span class='ident'>evp</span> <span class='op'>=</span> <span class='macro'>try_ssl_null</span><span class='macro'>!</span>(<span class='ident'>ffi</span>::<span class='ident'>EVP_PKEY_new</span>());
            <span class='macro'>try_ssl</span><span class='macro'>!</span>(<span class='ident'>ffi</span>::<span class='ident'>EVP_PKEY_set1_RSA</span>(<span class='ident'>evp</span>, <span class='ident'>rsa</span>.<span class='ident'>as_ptr</span>()));

            <span class='prelude-val'>Ok</span>(<span class='ident'>PKey</span> {
                <span class='ident'>evp</span>: <span class='ident'>evp</span>,
                <span class='ident'>parts</span>: <span class='ident'>Parts</span>::<span class='ident'>Public</span>,
            })
        }
    }

    <span class='kw'>fn</span> <span class='ident'>_tostr</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>f</span>: <span class='kw'>unsafe</span> <span class='kw'>extern</span> <span class='string'>&quot;C&quot;</span> <span class='kw'>fn</span>(<span class='op'>*</span><span class='kw-2'>mut</span> <span class='ident'>ffi</span>::<span class='ident'>RSA</span>, <span class='op'>*</span><span class='kw'>const</span> <span class='op'>*</span><span class='kw-2'>mut</span> <span class='ident'>u8</span>) <span class='op'>-&gt;</span> <span class='ident'>c_int</span>) <span class='op'>-&gt;</span> <span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>u8</span><span class='op'>&gt;</span> {
        <span class='kw'>unsafe</span> {
            <span class='kw'>let</span> <span class='ident'>rsa</span> <span class='op'>=</span> <span class='ident'>ffi</span>::<span class='ident'>EVP_PKEY_get1_RSA</span>(<span class='self'>self</span>.<span class='ident'>evp</span>);
            <span class='kw'>let</span> <span class='ident'>len</span> <span class='op'>=</span> <span class='ident'>f</span>(<span class='ident'>rsa</span>, <span class='ident'>ptr</span>::<span class='ident'>null</span>());
            <span class='kw'>if</span> <span class='ident'>len</span> <span class='op'>&lt;</span> <span class='number'>0</span> <span class='kw'>as</span> <span class='ident'>c_int</span> {
                <span class='kw'>return</span> <span class='macro'>vec</span><span class='macro'>!</span>[];
            }
            <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>s</span> <span class='op'>=</span> <span class='ident'>repeat</span>(<span class='number'>0u8</span>).<span class='ident'>take</span>(<span class='ident'>len</span> <span class='kw'>as</span> <span class='ident'>usize</span>).<span class='ident'>collect</span>::<span class='op'>&lt;</span><span class='ident'>Vec</span><span class='op'>&lt;</span>_<span class='op'>&gt;&gt;</span>();

            <span class='kw'>let</span> <span class='ident'>r</span> <span class='op'>=</span> <span class='ident'>f</span>(<span class='ident'>rsa</span>, <span class='kw-2'>&amp;</span><span class='ident'>s</span>.<span class='ident'>as_mut_ptr</span>());
            <span class='ident'>ffi</span>::<span class='ident'>RSA_free</span>(<span class='ident'>rsa</span>);

            <span class='ident'>s</span>.<span class='ident'>truncate</span>(<span class='ident'>r</span> <span class='kw'>as</span> <span class='ident'>usize</span>);
            <span class='ident'>s</span>
        }
    }

    <span class='kw'>fn</span> <span class='ident'>_fromstr</span>(<span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='self'>self</span>,
                <span class='ident'>s</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>],
                <span class='ident'>f</span>: <span class='kw'>unsafe</span> <span class='kw'>extern</span> <span class='string'>&quot;C&quot;</span> <span class='kw'>fn</span>(<span class='op'>*</span><span class='kw'>const</span> <span class='op'>*</span><span class='kw-2'>mut</span> <span class='ident'>ffi</span>::<span class='ident'>RSA</span>, <span class='op'>*</span><span class='kw'>const</span> <span class='op'>*</span><span class='kw'>const</span> <span class='ident'>u8</span>, <span class='ident'>c_uint</span>)
                                        <span class='op'>-&gt;</span> <span class='op'>*</span><span class='kw-2'>mut</span> <span class='ident'>ffi</span>::<span class='ident'>RSA</span>)
                <span class='op'>-&gt;</span> <span class='ident'>bool</span> {
        <span class='kw'>unsafe</span> {
            <span class='kw'>let</span> <span class='ident'>rsa</span> <span class='op'>=</span> <span class='ident'>ptr</span>::<span class='ident'>null_mut</span>();
            <span class='ident'>f</span>(<span class='kw-2'>&amp;</span><span class='ident'>rsa</span>, <span class='kw-2'>&amp;</span><span class='ident'>s</span>.<span class='ident'>as_ptr</span>(), <span class='ident'>s</span>.<span class='ident'>len</span>() <span class='kw'>as</span> <span class='ident'>c_uint</span>);
            <span class='kw'>if</span> <span class='op'>!</span><span class='ident'>rsa</span>.<span class='ident'>is_null</span>() {
                <span class='ident'>ffi</span>::<span class='ident'>EVP_PKEY_set1_RSA</span>(<span class='self'>self</span>.<span class='ident'>evp</span>, <span class='ident'>rsa</span>) <span class='op'>==</span> <span class='number'>1</span>
            } <span class='kw'>else</span> {
                <span class='bool-val'>false</span>
            }
        }
    }

    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>gen</span>(<span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>keysz</span>: <span class='ident'>usize</span>) {
        <span class='kw'>unsafe</span> {
            <span class='kw'>let</span> <span class='ident'>rsa</span> <span class='op'>=</span> <span class='ident'>ffi</span>::<span class='ident'>RSA_generate_key</span>(<span class='ident'>keysz</span> <span class='kw'>as</span> <span class='ident'>c_int</span>,
                                            <span class='number'>65537</span> <span class='kw'>as</span> <span class='ident'>c_ulong</span>,
                                            <span class='ident'>ptr</span>::<span class='ident'>null</span>(),
                                            <span class='ident'>ptr</span>::<span class='ident'>null</span>());

            <span class='comment'>// XXX: 6 == NID_rsaEncryption</span>
            <span class='ident'>ffi</span>::<span class='ident'>EVP_PKEY_assign</span>(<span class='self'>self</span>.<span class='ident'>evp</span>, <span class='number'>6</span> <span class='kw'>as</span> <span class='ident'>c_int</span>, <span class='ident'>mem</span>::<span class='ident'>transmute</span>(<span class='ident'>rsa</span>));

            <span class='self'>self</span>.<span class='ident'>parts</span> <span class='op'>=</span> <span class='ident'>Parts</span>::<span class='ident'>Both</span>;
        }
    }

    <span class='doccomment'>/// assign RSA key to this pkey</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>set_rsa</span>(<span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>rsa</span>: <span class='kw-2'>&amp;</span><span class='ident'>RSA</span>) {
        <span class='kw'>unsafe</span> {
            <span class='comment'>// this needs to be a reference as the set1_RSA ups the reference count</span>
            <span class='kw'>let</span> <span class='ident'>rsa_ptr</span> <span class='op'>=</span> <span class='ident'>rsa</span>.<span class='ident'>as_ptr</span>();
            <span class='kw'>if</span> <span class='ident'>ffi</span>::<span class='ident'>EVP_PKEY_set1_RSA</span>(<span class='self'>self</span>.<span class='ident'>evp</span>, <span class='ident'>rsa_ptr</span>) <span class='op'>==</span> <span class='number'>1</span> {
                <span class='kw'>if</span> <span class='ident'>rsa</span>.<span class='ident'>has_e</span>() <span class='op'>&amp;&amp;</span> <span class='ident'>rsa</span>.<span class='ident'>has_n</span>() {
                    <span class='self'>self</span>.<span class='ident'>parts</span> <span class='op'>=</span> <span class='ident'>Parts</span>::<span class='ident'>Public</span>;
                }
            }
        }
    }

    <span class='doccomment'>/// get a reference to the interal RSA key for direct access to the key components</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>get_rsa</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>) <span class='op'>-&gt;</span> <span class='ident'>RSA</span> {
        <span class='kw'>unsafe</span> {
            <span class='kw'>let</span> <span class='ident'>evp_pkey</span>: <span class='op'>*</span><span class='kw-2'>mut</span> <span class='ident'>ffi</span>::<span class='ident'>EVP_PKEY</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>evp</span>;
            <span class='comment'>// this is safe as the ffi increments a reference counter to the internal key</span>
            <span class='ident'>RSA</span>::<span class='ident'>from_raw</span>(<span class='ident'>ffi</span>::<span class='ident'>EVP_PKEY_get1_RSA</span>(<span class='ident'>evp_pkey</span>))
        }
    }

    <span class='doccomment'>/**
     * Returns a DER serialized form of the public key, suitable for load_pub().
     */</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>save_pub</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>) <span class='op'>-&gt;</span> <span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>u8</span><span class='op'>&gt;</span> {
        <span class='self'>self</span>.<span class='ident'>_tostr</span>(<span class='ident'>ffi</span>::<span class='ident'>i2d_RSA_PUBKEY</span>)
    }

    <span class='doccomment'>/**
     * Loads a DER serialized form of the public key, as produced by save_pub().
     */</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>load_pub</span>(<span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>s</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>]) {
        <span class='kw'>if</span> <span class='self'>self</span>.<span class='ident'>_fromstr</span>(<span class='ident'>s</span>, <span class='ident'>ffi</span>::<span class='ident'>d2i_RSA_PUBKEY</span>) {
            <span class='self'>self</span>.<span class='ident'>parts</span> <span class='op'>=</span> <span class='ident'>Parts</span>::<span class='ident'>Public</span>;
        }
    }

    <span class='doccomment'>/**
     * Returns a serialized form of the public and private keys, suitable for
     * load_priv().
     */</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>save_priv</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>) <span class='op'>-&gt;</span> <span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>u8</span><span class='op'>&gt;</span> {
        <span class='self'>self</span>.<span class='ident'>_tostr</span>(<span class='ident'>ffi</span>::<span class='ident'>i2d_RSAPrivateKey</span>)
    }
    <span class='doccomment'>/**
     * Loads a serialized form of the public and private keys, as produced by
     * save_priv().
     */</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>load_priv</span>(<span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>s</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>]) {
        <span class='kw'>if</span> <span class='self'>self</span>.<span class='ident'>_fromstr</span>(<span class='ident'>s</span>, <span class='ident'>ffi</span>::<span class='ident'>d2i_RSAPrivateKey</span>) {
            <span class='self'>self</span>.<span class='ident'>parts</span> <span class='op'>=</span> <span class='ident'>Parts</span>::<span class='ident'>Both</span>;
        }
    }

    <span class='doccomment'>/// Stores private key as a PEM</span>
    <span class='comment'>// FIXME: also add password and encryption</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>write_pem</span><span class='op'>&lt;</span><span class='ident'>W</span>: <span class='ident'>Write</span><span class='op'>&gt;</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>,
                               <span class='ident'>writer</span>: <span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='ident'>W</span> <span class='comment'>/* , password: Option&lt;String&gt; */</span>)
                               <span class='op'>-&gt;</span> <span class='prelude-ty'>Result</span><span class='op'>&lt;</span>(), <span class='ident'>SslError</span><span class='op'>&gt;</span> {
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>mem_bio</span> <span class='op'>=</span> <span class='macro'>try</span><span class='macro'>!</span>(<span class='ident'>MemBio</span>::<span class='ident'>new</span>());
        <span class='kw'>unsafe</span> {
            <span class='macro'>try_ssl</span><span class='macro'>!</span>(<span class='ident'>ffi</span>::<span class='ident'>PEM_write_bio_PrivateKey</span>(<span class='ident'>mem_bio</span>.<span class='ident'>get_handle</span>(),
                                                   <span class='self'>self</span>.<span class='ident'>evp</span>,
                                                   <span class='ident'>ptr</span>::<span class='ident'>null</span>(),
                                                   <span class='ident'>ptr</span>::<span class='ident'>null_mut</span>(),
                                                   <span class='op'>-</span><span class='number'>1</span>,
                                                   <span class='prelude-val'>None</span>,
                                                   <span class='ident'>ptr</span>::<span class='ident'>null_mut</span>()));

        }
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>buf</span> <span class='op'>=</span> <span class='macro'>vec</span><span class='macro'>!</span>[];
        <span class='macro'>try</span><span class='macro'>!</span>(<span class='ident'>mem_bio</span>.<span class='ident'>read_to_end</span>(<span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='ident'>buf</span>).<span class='ident'>map_err</span>(<span class='ident'>StreamError</span>));
        <span class='ident'>writer</span>.<span class='ident'>write_all</span>(<span class='kw-2'>&amp;</span><span class='ident'>buf</span>).<span class='ident'>map_err</span>(<span class='ident'>StreamError</span>)
    }

    <span class='doccomment'>/// Stores public key as a PEM</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>write_pub_pem</span><span class='op'>&lt;</span><span class='ident'>W</span>: <span class='ident'>Write</span><span class='op'>&gt;</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>,
                                   <span class='ident'>writer</span>: <span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='ident'>W</span> <span class='comment'>/* , password: Option&lt;String&gt; */</span>)
                                   <span class='op'>-&gt;</span> <span class='prelude-ty'>Result</span><span class='op'>&lt;</span>(), <span class='ident'>SslError</span><span class='op'>&gt;</span> {
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>mem_bio</span> <span class='op'>=</span> <span class='macro'>try</span><span class='macro'>!</span>(<span class='ident'>MemBio</span>::<span class='ident'>new</span>());
        <span class='kw'>unsafe</span> { <span class='macro'>try_ssl</span><span class='macro'>!</span>(<span class='ident'>ffi</span>::<span class='ident'>PEM_write_bio_PUBKEY</span>(<span class='ident'>mem_bio</span>.<span class='ident'>get_handle</span>(), <span class='self'>self</span>.<span class='ident'>evp</span>)) }
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>buf</span> <span class='op'>=</span> <span class='macro'>vec</span><span class='macro'>!</span>[];
        <span class='macro'>try</span><span class='macro'>!</span>(<span class='ident'>mem_bio</span>.<span class='ident'>read_to_end</span>(<span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='ident'>buf</span>).<span class='ident'>map_err</span>(<span class='ident'>StreamError</span>));
        <span class='ident'>writer</span>.<span class='ident'>write_all</span>(<span class='kw-2'>&amp;</span><span class='ident'>buf</span>).<span class='ident'>map_err</span>(<span class='ident'>StreamError</span>)
    }

    <span class='doccomment'>/**
     * Returns the size of the public key modulus.
     */</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>size</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>) <span class='op'>-&gt;</span> <span class='ident'>usize</span> {
        <span class='kw'>unsafe</span> {
            <span class='kw'>let</span> <span class='ident'>rsa</span> <span class='op'>=</span> <span class='ident'>ffi</span>::<span class='ident'>EVP_PKEY_get1_RSA</span>(<span class='self'>self</span>.<span class='ident'>evp</span>);
            <span class='kw'>if</span> <span class='ident'>rsa</span>.<span class='ident'>is_null</span>() {
                <span class='number'>0</span>
            } <span class='kw'>else</span> {
                <span class='ident'>ffi</span>::<span class='ident'>RSA_size</span>(<span class='ident'>rsa</span>) <span class='kw'>as</span> <span class='ident'>usize</span>
            }
        }
    }

    <span class='doccomment'>/**
     * Returns whether this pkey object can perform the specified role.
     */</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>can</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>r</span>: <span class='ident'>Role</span>) <span class='op'>-&gt;</span> <span class='ident'>bool</span> {
        <span class='kw'>match</span> <span class='ident'>r</span> {
            <span class='ident'>Role</span>::<span class='ident'>Encrypt</span> <span class='op'>=&gt;</span> {
                <span class='kw'>match</span> <span class='self'>self</span>.<span class='ident'>parts</span> {
                    <span class='ident'>Parts</span>::<span class='ident'>Neither</span> <span class='op'>=&gt;</span> <span class='bool-val'>false</span>,
                    _ <span class='op'>=&gt;</span> <span class='bool-val'>true</span>,
                }
            }
            <span class='ident'>Role</span>::<span class='ident'>Verify</span> <span class='op'>=&gt;</span> {
                <span class='kw'>match</span> <span class='self'>self</span>.<span class='ident'>parts</span> {
                    <span class='ident'>Parts</span>::<span class='ident'>Neither</span> <span class='op'>=&gt;</span> <span class='bool-val'>false</span>,
                    _ <span class='op'>=&gt;</span> <span class='bool-val'>true</span>,
                }
            }
            <span class='ident'>Role</span>::<span class='ident'>Decrypt</span> <span class='op'>=&gt;</span> {
                <span class='kw'>match</span> <span class='self'>self</span>.<span class='ident'>parts</span> {
                    <span class='ident'>Parts</span>::<span class='ident'>Both</span> <span class='op'>=&gt;</span> <span class='bool-val'>true</span>,
                    _ <span class='op'>=&gt;</span> <span class='bool-val'>false</span>,
                }
            }
            <span class='ident'>Role</span>::<span class='ident'>Sign</span> <span class='op'>=&gt;</span> {
                <span class='kw'>match</span> <span class='self'>self</span>.<span class='ident'>parts</span> {
                    <span class='ident'>Parts</span>::<span class='ident'>Both</span> <span class='op'>=&gt;</span> <span class='bool-val'>true</span>,
                    _ <span class='op'>=&gt;</span> <span class='bool-val'>false</span>,
                }
            }
        }
    }

    <span class='doccomment'>/**
     * Returns the maximum amount of data that can be encrypted by an encrypt()
     * call.
     */</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>max_data</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>) <span class='op'>-&gt;</span> <span class='ident'>usize</span> {
        <span class='kw'>unsafe</span> {
            <span class='kw'>let</span> <span class='ident'>rsa</span> <span class='op'>=</span> <span class='ident'>ffi</span>::<span class='ident'>EVP_PKEY_get1_RSA</span>(<span class='self'>self</span>.<span class='ident'>evp</span>);
            <span class='kw'>if</span> <span class='ident'>rsa</span>.<span class='ident'>is_null</span>() {
                <span class='kw'>return</span> <span class='number'>0</span>;
            }
            <span class='kw'>let</span> <span class='ident'>len</span> <span class='op'>=</span> <span class='ident'>ffi</span>::<span class='ident'>RSA_size</span>(<span class='ident'>rsa</span>);

            <span class='comment'>// 41 comes from RSA_public_encrypt(3) for OAEP</span>
            <span class='ident'>len</span> <span class='kw'>as</span> <span class='ident'>usize</span> <span class='op'>-</span> <span class='number'>41</span>
        }
    }

    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>private_encrypt_with_padding</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>s</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>], <span class='ident'>padding</span>: <span class='ident'>EncryptionPadding</span>) <span class='op'>-&gt;</span> <span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>u8</span><span class='op'>&gt;</span> {
        <span class='kw'>unsafe</span> {
            <span class='kw'>let</span> <span class='ident'>rsa</span> <span class='op'>=</span> <span class='ident'>ffi</span>::<span class='ident'>EVP_PKEY_get1_RSA</span>(<span class='self'>self</span>.<span class='ident'>evp</span>);
            <span class='kw'>if</span> <span class='ident'>rsa</span>.<span class='ident'>is_null</span>() {
                <span class='macro'>panic</span><span class='macro'>!</span>(<span class='string'>&quot;Could not get RSA key for encryption&quot;</span>);
            }
            <span class='kw'>let</span> <span class='ident'>len</span> <span class='op'>=</span> <span class='ident'>ffi</span>::<span class='ident'>RSA_size</span>(<span class='ident'>rsa</span>);

            <span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>s</span>.<span class='ident'>len</span>() <span class='op'>&lt;</span> <span class='self'>self</span>.<span class='ident'>max_data</span>());

            <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>r</span> <span class='op'>=</span> <span class='ident'>repeat</span>(<span class='number'>0u8</span>).<span class='ident'>take</span>(<span class='ident'>len</span> <span class='kw'>as</span> <span class='ident'>usize</span> <span class='op'>+</span> <span class='number'>1</span>).<span class='ident'>collect</span>::<span class='op'>&lt;</span><span class='ident'>Vec</span><span class='op'>&lt;</span>_<span class='op'>&gt;&gt;</span>();

            <span class='kw'>let</span> <span class='ident'>rv</span> <span class='op'>=</span> <span class='ident'>ffi</span>::<span class='ident'>RSA_private_encrypt</span>(<span class='ident'>s</span>.<span class='ident'>len</span>() <span class='kw'>as</span> <span class='ident'>c_int</span>,
                                              <span class='ident'>s</span>.<span class='ident'>as_ptr</span>(),
                                              <span class='ident'>r</span>.<span class='ident'>as_mut_ptr</span>(),
                                              <span class='ident'>rsa</span>,
                                              <span class='ident'>openssl_padding_code</span>(<span class='ident'>padding</span>));

            <span class='kw'>if</span> <span class='ident'>rv</span> <span class='op'>&lt;</span> <span class='number'>0</span> <span class='kw'>as</span> <span class='ident'>c_int</span> {
                <span class='comment'>// println!(&quot;{:?}&quot;, SslError::get());</span>
                <span class='macro'>vec</span><span class='macro'>!</span>[]
            } <span class='kw'>else</span> {
                <span class='ident'>r</span>.<span class='ident'>truncate</span>(<span class='ident'>rv</span> <span class='kw'>as</span> <span class='ident'>usize</span>);
                <span class='ident'>r</span>
            }
        }
    }

    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>public_encrypt_with_padding</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>s</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>], <span class='ident'>padding</span>: <span class='ident'>EncryptionPadding</span>) <span class='op'>-&gt;</span> <span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>u8</span><span class='op'>&gt;</span> {
        <span class='kw'>unsafe</span> {
            <span class='kw'>let</span> <span class='ident'>rsa</span> <span class='op'>=</span> <span class='ident'>ffi</span>::<span class='ident'>EVP_PKEY_get1_RSA</span>(<span class='self'>self</span>.<span class='ident'>evp</span>);
            <span class='kw'>if</span> <span class='ident'>rsa</span>.<span class='ident'>is_null</span>() {
                <span class='macro'>panic</span><span class='macro'>!</span>(<span class='string'>&quot;Could not get RSA key for encryption&quot;</span>);
            }
            <span class='kw'>let</span> <span class='ident'>len</span> <span class='op'>=</span> <span class='ident'>ffi</span>::<span class='ident'>RSA_size</span>(<span class='ident'>rsa</span>);

            <span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>s</span>.<span class='ident'>len</span>() <span class='op'>&lt;</span> <span class='self'>self</span>.<span class='ident'>max_data</span>());

            <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>r</span> <span class='op'>=</span> <span class='ident'>repeat</span>(<span class='number'>0u8</span>).<span class='ident'>take</span>(<span class='ident'>len</span> <span class='kw'>as</span> <span class='ident'>usize</span> <span class='op'>+</span> <span class='number'>1</span>).<span class='ident'>collect</span>::<span class='op'>&lt;</span><span class='ident'>Vec</span><span class='op'>&lt;</span>_<span class='op'>&gt;&gt;</span>();

            <span class='kw'>let</span> <span class='ident'>rv</span> <span class='op'>=</span> <span class='ident'>ffi</span>::<span class='ident'>RSA_public_encrypt</span>(<span class='ident'>s</span>.<span class='ident'>len</span>() <span class='kw'>as</span> <span class='ident'>c_int</span>,
                                             <span class='ident'>s</span>.<span class='ident'>as_ptr</span>(),
                                             <span class='ident'>r</span>.<span class='ident'>as_mut_ptr</span>(),
                                             <span class='ident'>rsa</span>,
                                             <span class='ident'>openssl_padding_code</span>(<span class='ident'>padding</span>));

            <span class='kw'>if</span> <span class='ident'>rv</span> <span class='op'>&lt;</span> <span class='number'>0</span> <span class='kw'>as</span> <span class='ident'>c_int</span> {
                <span class='macro'>vec</span><span class='macro'>!</span>[]
            } <span class='kw'>else</span> {
                <span class='ident'>r</span>.<span class='ident'>truncate</span>(<span class='ident'>rv</span> <span class='kw'>as</span> <span class='ident'>usize</span>);
                <span class='ident'>r</span>
            }
        }
    }

    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>private_decrypt_with_padding</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>s</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>], <span class='ident'>padding</span>: <span class='ident'>EncryptionPadding</span>) <span class='op'>-&gt;</span> <span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>u8</span><span class='op'>&gt;</span> {
        <span class='kw'>unsafe</span> {
            <span class='kw'>let</span> <span class='ident'>rsa</span> <span class='op'>=</span> <span class='ident'>ffi</span>::<span class='ident'>EVP_PKEY_get1_RSA</span>(<span class='self'>self</span>.<span class='ident'>evp</span>);
            <span class='kw'>if</span> <span class='ident'>rsa</span>.<span class='ident'>is_null</span>() {
                <span class='macro'>panic</span><span class='macro'>!</span>(<span class='string'>&quot;Could not get RSA key for decryption&quot;</span>);
            }
            <span class='kw'>let</span> <span class='ident'>len</span> <span class='op'>=</span> <span class='ident'>ffi</span>::<span class='ident'>RSA_size</span>(<span class='ident'>rsa</span>);

            <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>s</span>.<span class='ident'>len</span>() <span class='kw'>as</span> <span class='ident'>c_int</span>, <span class='ident'>ffi</span>::<span class='ident'>RSA_size</span>(<span class='ident'>rsa</span>));

            <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>r</span> <span class='op'>=</span> <span class='ident'>repeat</span>(<span class='number'>0u8</span>).<span class='ident'>take</span>(<span class='ident'>len</span> <span class='kw'>as</span> <span class='ident'>usize</span> <span class='op'>+</span> <span class='number'>1</span>).<span class='ident'>collect</span>::<span class='op'>&lt;</span><span class='ident'>Vec</span><span class='op'>&lt;</span>_<span class='op'>&gt;&gt;</span>();

            <span class='kw'>let</span> <span class='ident'>rv</span> <span class='op'>=</span> <span class='ident'>ffi</span>::<span class='ident'>RSA_private_decrypt</span>(<span class='ident'>s</span>.<span class='ident'>len</span>() <span class='kw'>as</span> <span class='ident'>c_int</span>,
                                              <span class='ident'>s</span>.<span class='ident'>as_ptr</span>(),
                                              <span class='ident'>r</span>.<span class='ident'>as_mut_ptr</span>(),
                                              <span class='ident'>rsa</span>,
                                              <span class='ident'>openssl_padding_code</span>(<span class='ident'>padding</span>));

            <span class='kw'>if</span> <span class='ident'>rv</span> <span class='op'>&lt;</span> <span class='number'>0</span> <span class='kw'>as</span> <span class='ident'>c_int</span> {
                <span class='macro'>vec</span><span class='macro'>!</span>[]
            } <span class='kw'>else</span> {
                <span class='ident'>r</span>.<span class='ident'>truncate</span>(<span class='ident'>rv</span> <span class='kw'>as</span> <span class='ident'>usize</span>);
                <span class='ident'>r</span>
            }
        }
    }

    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>public_decrypt_with_padding</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>s</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>], <span class='ident'>padding</span>: <span class='ident'>EncryptionPadding</span>) <span class='op'>-&gt;</span> <span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>u8</span><span class='op'>&gt;</span> {
        <span class='kw'>unsafe</span> {
            <span class='kw'>let</span> <span class='ident'>rsa</span> <span class='op'>=</span> <span class='ident'>ffi</span>::<span class='ident'>EVP_PKEY_get1_RSA</span>(<span class='self'>self</span>.<span class='ident'>evp</span>);
            <span class='kw'>if</span> <span class='ident'>rsa</span>.<span class='ident'>is_null</span>() {
                <span class='macro'>panic</span><span class='macro'>!</span>(<span class='string'>&quot;Could not get RSA key for decryption&quot;</span>);
            }
            <span class='kw'>let</span> <span class='ident'>len</span> <span class='op'>=</span> <span class='ident'>ffi</span>::<span class='ident'>RSA_size</span>(<span class='ident'>rsa</span>);

            <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>s</span>.<span class='ident'>len</span>() <span class='kw'>as</span> <span class='ident'>c_int</span>, <span class='ident'>ffi</span>::<span class='ident'>RSA_size</span>(<span class='ident'>rsa</span>));

            <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>r</span> <span class='op'>=</span> <span class='ident'>repeat</span>(<span class='number'>0u8</span>).<span class='ident'>take</span>(<span class='ident'>len</span> <span class='kw'>as</span> <span class='ident'>usize</span> <span class='op'>+</span> <span class='number'>1</span>).<span class='ident'>collect</span>::<span class='op'>&lt;</span><span class='ident'>Vec</span><span class='op'>&lt;</span>_<span class='op'>&gt;&gt;</span>();

            <span class='kw'>let</span> <span class='ident'>rv</span> <span class='op'>=</span> <span class='ident'>ffi</span>::<span class='ident'>RSA_public_decrypt</span>(<span class='ident'>s</span>.<span class='ident'>len</span>() <span class='kw'>as</span> <span class='ident'>c_int</span>,
                                             <span class='ident'>s</span>.<span class='ident'>as_ptr</span>(),
                                             <span class='ident'>r</span>.<span class='ident'>as_mut_ptr</span>(),
                                             <span class='ident'>rsa</span>,
                                             <span class='ident'>openssl_padding_code</span>(<span class='ident'>padding</span>));

            <span class='kw'>if</span> <span class='ident'>rv</span> <span class='op'>&lt;</span> <span class='number'>0</span> <span class='kw'>as</span> <span class='ident'>c_int</span> {
                <span class='macro'>vec</span><span class='macro'>!</span>[]
            } <span class='kw'>else</span> {
                <span class='ident'>r</span>.<span class='ident'>truncate</span>(<span class='ident'>rv</span> <span class='kw'>as</span> <span class='ident'>usize</span>);
                <span class='ident'>r</span>
            }
        }
    }

    <span class='doccomment'>/**
     * Encrypts data with the public key, using OAEP padding, returning the encrypted data. The
     * supplied data must not be larger than max_data().
     */</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>encrypt</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>s</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>]) <span class='op'>-&gt;</span> <span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>u8</span><span class='op'>&gt;</span> {
        <span class='self'>self</span>.<span class='ident'>public_encrypt_with_padding</span>(<span class='ident'>s</span>, <span class='ident'>EncryptionPadding</span>::<span class='ident'>OAEP</span>)
    }

    <span class='doccomment'>/**
     * Encrypts data with the public key, using provided padding, returning the encrypted data. The
     * supplied data must not be larger than max_data().
     */</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>encrypt_with_padding</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>s</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>], <span class='ident'>padding</span>: <span class='ident'>EncryptionPadding</span>) <span class='op'>-&gt;</span> <span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>u8</span><span class='op'>&gt;</span> {
        <span class='self'>self</span>.<span class='ident'>public_encrypt_with_padding</span>(<span class='ident'>s</span>, <span class='ident'>padding</span>)
    }

    <span class='doccomment'>/**
     * Encrypts data with the public key, using OAEP padding, returning the encrypted data. The
     * supplied data must not be larger than max_data().
     */</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>public_encrypt</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>s</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>]) <span class='op'>-&gt;</span> <span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>u8</span><span class='op'>&gt;</span> {
        <span class='self'>self</span>.<span class='ident'>public_encrypt_with_padding</span>(<span class='ident'>s</span>, <span class='ident'>EncryptionPadding</span>::<span class='ident'>OAEP</span>)
    }

    <span class='doccomment'>/**
     * Decrypts data with the public key, using PKCS1v15 padding, returning the decrypted data.
     */</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>public_decrypt</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>s</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>]) <span class='op'>-&gt;</span> <span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>u8</span><span class='op'>&gt;</span> {
        <span class='self'>self</span>.<span class='ident'>public_decrypt_with_padding</span>(<span class='ident'>s</span>, <span class='ident'>EncryptionPadding</span>::<span class='ident'>PKCS1v15</span>)
    }

    <span class='doccomment'>/**
     * Decrypts data with the private key, expecting OAEP padding, returning the decrypted data.
     */</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>decrypt</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>s</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>]) <span class='op'>-&gt;</span> <span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>u8</span><span class='op'>&gt;</span> {
        <span class='self'>self</span>.<span class='ident'>private_decrypt_with_padding</span>(<span class='ident'>s</span>, <span class='ident'>EncryptionPadding</span>::<span class='ident'>OAEP</span>)
    }

    <span class='doccomment'>/**
     * Decrypts data with the private key, using provided padding, returning the encrypted data. The
     * supplied data must not be larger than max_data().
     */</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>decrypt_with_padding</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>s</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>], <span class='ident'>padding</span>: <span class='ident'>EncryptionPadding</span>) <span class='op'>-&gt;</span> <span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>u8</span><span class='op'>&gt;</span> {
        <span class='self'>self</span>.<span class='ident'>private_decrypt_with_padding</span>(<span class='ident'>s</span>, <span class='ident'>padding</span>)
    }

    <span class='doccomment'>/**
     * Decrypts data with the private key, expecting OAEP padding, returning the decrypted data.
     */</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>private_decrypt</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>s</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>]) <span class='op'>-&gt;</span> <span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>u8</span><span class='op'>&gt;</span> {
        <span class='self'>self</span>.<span class='ident'>private_decrypt_with_padding</span>(<span class='ident'>s</span>, <span class='ident'>EncryptionPadding</span>::<span class='ident'>OAEP</span>)
    }

    <span class='doccomment'>/**
     * Encrypts data with the private key, using PKCS1v15 padding, returning the encrypted data. The
     * supplied data must not be larger than max_data().
     */</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>private_encrypt</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>s</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>]) <span class='op'>-&gt;</span> <span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>u8</span><span class='op'>&gt;</span> {
        <span class='self'>self</span>.<span class='ident'>private_encrypt_with_padding</span>(<span class='ident'>s</span>, <span class='ident'>EncryptionPadding</span>::<span class='ident'>PKCS1v15</span>)
    }

    <span class='doccomment'>/**
     * Signs data, using OpenSSL&#39;s default scheme and adding sha256 ASN.1 information to the
     * signature.
     * The bytes to sign must be the result of a sha256 hashing;
     * returns the signature.
     */</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>sign</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>s</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>]) <span class='op'>-&gt;</span> <span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>u8</span><span class='op'>&gt;</span> {
        <span class='self'>self</span>.<span class='ident'>sign_with_hash</span>(<span class='ident'>s</span>, <span class='ident'>HashType</span>::<span class='ident'>SHA256</span>)
    }

    <span class='doccomment'>/**
     * Verifies a signature s (using OpenSSL&#39;s default scheme and sha256) on the SHA256 hash of a
     * message.
     * Returns true if the signature is valid, and false otherwise.
     */</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>verify</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>h</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>], <span class='ident'>s</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>]) <span class='op'>-&gt;</span> <span class='ident'>bool</span> {
        <span class='self'>self</span>.<span class='ident'>verify_with_hash</span>(<span class='ident'>h</span>, <span class='ident'>s</span>, <span class='ident'>HashType</span>::<span class='ident'>SHA256</span>)
    }

    <span class='doccomment'>/**
     * Signs data, using OpenSSL&#39;s default scheme and add ASN.1 information for the given hash type to the
     * signature.
     * The bytes to sign must be the result of this type of hashing;
     * returns the signature.
     */</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>sign_with_hash</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>s</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>], <span class='ident'>hash</span>: <span class='ident'>hash</span>::<span class='ident'>Type</span>) <span class='op'>-&gt;</span> <span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>u8</span><span class='op'>&gt;</span> {
        <span class='kw'>unsafe</span> {
            <span class='kw'>let</span> <span class='ident'>rsa</span> <span class='op'>=</span> <span class='ident'>ffi</span>::<span class='ident'>EVP_PKEY_get1_RSA</span>(<span class='self'>self</span>.<span class='ident'>evp</span>);
            <span class='kw'>if</span> <span class='ident'>rsa</span>.<span class='ident'>is_null</span>() {
                <span class='macro'>panic</span><span class='macro'>!</span>(<span class='string'>&quot;Could not get RSA key for signing&quot;</span>);
            }
            <span class='kw'>let</span> <span class='ident'>len</span> <span class='op'>=</span> <span class='ident'>ffi</span>::<span class='ident'>RSA_size</span>(<span class='ident'>rsa</span>);
            <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>r</span> <span class='op'>=</span> <span class='ident'>repeat</span>(<span class='number'>0u8</span>).<span class='ident'>take</span>(<span class='ident'>len</span> <span class='kw'>as</span> <span class='ident'>usize</span> <span class='op'>+</span> <span class='number'>1</span>).<span class='ident'>collect</span>::<span class='op'>&lt;</span><span class='ident'>Vec</span><span class='op'>&lt;</span>_<span class='op'>&gt;&gt;</span>();

            <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>len</span> <span class='op'>=</span> <span class='number'>0</span>;
            <span class='kw'>let</span> <span class='ident'>rv</span> <span class='op'>=</span> <span class='ident'>ffi</span>::<span class='ident'>RSA_sign</span>(<span class='ident'>hash</span>.<span class='ident'>as_nid</span>() <span class='kw'>as</span> <span class='ident'>c_int</span>,
                                   <span class='ident'>s</span>.<span class='ident'>as_ptr</span>(),
                                   <span class='ident'>s</span>.<span class='ident'>len</span>() <span class='kw'>as</span> <span class='ident'>c_uint</span>,
                                   <span class='ident'>r</span>.<span class='ident'>as_mut_ptr</span>(),
                                   <span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='ident'>len</span>,
                                   <span class='ident'>rsa</span>);

            <span class='kw'>if</span> <span class='ident'>rv</span> <span class='op'>&lt;</span> <span class='number'>0</span> <span class='kw'>as</span> <span class='ident'>c_int</span> {
                <span class='macro'>vec</span><span class='macro'>!</span>[]
            } <span class='kw'>else</span> {
                <span class='ident'>r</span>.<span class='ident'>truncate</span>(<span class='ident'>len</span> <span class='kw'>as</span> <span class='ident'>usize</span>);
                <span class='ident'>r</span>
            }
        }
    }

    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>verify_with_hash</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>h</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>], <span class='ident'>s</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>], <span class='ident'>hash</span>: <span class='ident'>hash</span>::<span class='ident'>Type</span>) <span class='op'>-&gt;</span> <span class='ident'>bool</span> {
        <span class='kw'>unsafe</span> {
            <span class='kw'>let</span> <span class='ident'>rsa</span> <span class='op'>=</span> <span class='ident'>ffi</span>::<span class='ident'>EVP_PKEY_get1_RSA</span>(<span class='self'>self</span>.<span class='ident'>evp</span>);
            <span class='kw'>if</span> <span class='ident'>rsa</span>.<span class='ident'>is_null</span>() {
                <span class='macro'>panic</span><span class='macro'>!</span>(<span class='string'>&quot;Could not get RSA key for verification&quot;</span>);
            }

            <span class='kw'>let</span> <span class='ident'>rv</span> <span class='op'>=</span> <span class='ident'>ffi</span>::<span class='ident'>RSA_verify</span>(<span class='ident'>hash</span>.<span class='ident'>as_nid</span>() <span class='kw'>as</span> <span class='ident'>c_int</span>,
                                     <span class='ident'>h</span>.<span class='ident'>as_ptr</span>(),
                                     <span class='ident'>h</span>.<span class='ident'>len</span>() <span class='kw'>as</span> <span class='ident'>c_uint</span>,
                                     <span class='ident'>s</span>.<span class='ident'>as_ptr</span>(),
                                     <span class='ident'>s</span>.<span class='ident'>len</span>() <span class='kw'>as</span> <span class='ident'>c_uint</span>,
                                     <span class='ident'>rsa</span>);

            <span class='ident'>rv</span> <span class='op'>==</span> <span class='number'>1</span> <span class='kw'>as</span> <span class='ident'>c_int</span>
        }
    }

    <span class='kw'>pub</span> <span class='kw'>unsafe</span> <span class='kw'>fn</span> <span class='ident'>get_handle</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>) <span class='op'>-&gt;</span> <span class='op'>*</span><span class='kw-2'>mut</span> <span class='ident'>ffi</span>::<span class='ident'>EVP_PKEY</span> {
        <span class='kw'>return</span> <span class='self'>self</span>.<span class='ident'>evp</span>;
    }

    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>public_eq</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>other</span>: <span class='kw-2'>&amp;</span><span class='ident'>PKey</span>) <span class='op'>-&gt;</span> <span class='ident'>bool</span> {
        <span class='kw'>unsafe</span> { <span class='ident'>ffi</span>::<span class='ident'>EVP_PKEY_cmp</span>(<span class='self'>self</span>.<span class='ident'>evp</span>, <span class='ident'>other</span>.<span class='ident'>evp</span>) <span class='op'>==</span> <span class='number'>1</span> }
    }
}

<span class='kw'>impl</span> <span class='ident'>Drop</span> <span class='kw'>for</span> <span class='ident'>PKey</span> {
    <span class='kw'>fn</span> <span class='ident'>drop</span>(<span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='self'>self</span>) {
        <span class='kw'>unsafe</span> {
            <span class='ident'>ffi</span>::<span class='ident'>EVP_PKEY_free</span>(<span class='self'>self</span>.<span class='ident'>evp</span>);
        }
    }
}

<span class='kw'>impl</span> <span class='ident'>Clone</span> <span class='kw'>for</span> <span class='ident'>PKey</span> {
    <span class='kw'>fn</span> <span class='ident'>clone</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>) <span class='op'>-&gt;</span> <span class='self'>Self</span> {
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>pkey</span> <span class='op'>=</span> <span class='ident'>PKey</span>::<span class='ident'>from_handle</span>(<span class='kw'>unsafe</span> { <span class='ident'>ffi</span>::<span class='ident'>EVP_PKEY_new</span>() }, <span class='self'>self</span>.<span class='ident'>parts</span>);
        <span class='comment'>// copy by encoding to DER and back</span>
        <span class='kw'>match</span> <span class='self'>self</span>.<span class='ident'>parts</span> {
            <span class='ident'>Parts</span>::<span class='ident'>Public</span> <span class='op'>=&gt;</span> {
                <span class='ident'>pkey</span>.<span class='ident'>load_pub</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>.<span class='ident'>save_pub</span>()[..]);
            }
            <span class='ident'>Parts</span>::<span class='ident'>Both</span> <span class='op'>=&gt;</span> {
                <span class='ident'>pkey</span>.<span class='ident'>load_priv</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>.<span class='ident'>save_priv</span>()[..]);
            }
            <span class='ident'>Parts</span>::<span class='ident'>Neither</span> <span class='op'>=&gt;</span> {}
        }
        <span class='ident'>pkey</span>
    }
}

<span class='attribute'>#[<span class='ident'>cfg</span>(<span class='ident'>test</span>)]</span>
<span class='kw'>mod</span> <span class='ident'>tests</span> {
    <span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>path</span>::<span class='ident'>Path</span>;
    <span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>fs</span>::<span class='ident'>File</span>;
    <span class='kw'>use</span> <span class='ident'>crypto</span>::<span class='ident'>hash</span>::<span class='ident'>Type</span>::{<span class='ident'>MD5</span>, <span class='ident'>SHA1</span>};
    <span class='kw'>use</span> <span class='ident'>crypto</span>::<span class='ident'>rsa</span>::<span class='ident'>RSA</span>;

    <span class='attribute'>#[<span class='ident'>test</span>]</span>
    <span class='kw'>fn</span> <span class='ident'>test_gen_pub</span>() {
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>k0</span> <span class='op'>=</span> <span class='kw'>super</span>::<span class='ident'>PKey</span>::<span class='ident'>new</span>();
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>k1</span> <span class='op'>=</span> <span class='kw'>super</span>::<span class='ident'>PKey</span>::<span class='ident'>new</span>();
        <span class='ident'>k0</span>.<span class='ident'>gen</span>(<span class='number'>512</span>);
        <span class='ident'>k1</span>.<span class='ident'>load_pub</span>(<span class='kw-2'>&amp;</span><span class='ident'>k0</span>.<span class='ident'>save_pub</span>());
        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>k0</span>.<span class='ident'>save_pub</span>(), <span class='ident'>k1</span>.<span class='ident'>save_pub</span>());
        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>k0</span>.<span class='ident'>public_eq</span>(<span class='kw-2'>&amp;</span><span class='ident'>k1</span>));
        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>k0</span>.<span class='ident'>size</span>(), <span class='ident'>k1</span>.<span class='ident'>size</span>());
        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>k0</span>.<span class='ident'>can</span>(<span class='kw'>super</span>::<span class='ident'>Role</span>::<span class='ident'>Encrypt</span>));
        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>k0</span>.<span class='ident'>can</span>(<span class='kw'>super</span>::<span class='ident'>Role</span>::<span class='ident'>Decrypt</span>));
        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>k0</span>.<span class='ident'>can</span>(<span class='kw'>super</span>::<span class='ident'>Role</span>::<span class='ident'>Verify</span>));
        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>k0</span>.<span class='ident'>can</span>(<span class='kw'>super</span>::<span class='ident'>Role</span>::<span class='ident'>Sign</span>));
        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>k1</span>.<span class='ident'>can</span>(<span class='kw'>super</span>::<span class='ident'>Role</span>::<span class='ident'>Encrypt</span>));
        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>k1</span>.<span class='ident'>can</span>(<span class='kw'>super</span>::<span class='ident'>Role</span>::<span class='ident'>Decrypt</span>));
        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>k1</span>.<span class='ident'>can</span>(<span class='kw'>super</span>::<span class='ident'>Role</span>::<span class='ident'>Verify</span>));
        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>k1</span>.<span class='ident'>can</span>(<span class='kw'>super</span>::<span class='ident'>Role</span>::<span class='ident'>Sign</span>));
    }

    <span class='attribute'>#[<span class='ident'>test</span>]</span>
    <span class='kw'>fn</span> <span class='ident'>test_gen_priv</span>() {
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>k0</span> <span class='op'>=</span> <span class='kw'>super</span>::<span class='ident'>PKey</span>::<span class='ident'>new</span>();
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>k1</span> <span class='op'>=</span> <span class='kw'>super</span>::<span class='ident'>PKey</span>::<span class='ident'>new</span>();
        <span class='ident'>k0</span>.<span class='ident'>gen</span>(<span class='number'>512</span>);
        <span class='ident'>k1</span>.<span class='ident'>load_priv</span>(<span class='kw-2'>&amp;</span><span class='ident'>k0</span>.<span class='ident'>save_priv</span>());
        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>k0</span>.<span class='ident'>save_priv</span>(), <span class='ident'>k1</span>.<span class='ident'>save_priv</span>());
        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>k0</span>.<span class='ident'>public_eq</span>(<span class='kw-2'>&amp;</span><span class='ident'>k1</span>));
        <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>k0</span>.<span class='ident'>size</span>(), <span class='ident'>k1</span>.<span class='ident'>size</span>());
        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>k0</span>.<span class='ident'>can</span>(<span class='kw'>super</span>::<span class='ident'>Role</span>::<span class='ident'>Encrypt</span>));
        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>k0</span>.<span class='ident'>can</span>(<span class='kw'>super</span>::<span class='ident'>Role</span>::<span class='ident'>Decrypt</span>));
        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>k0</span>.<span class='ident'>can</span>(<span class='kw'>super</span>::<span class='ident'>Role</span>::<span class='ident'>Verify</span>));
        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>k0</span>.<span class='ident'>can</span>(<span class='kw'>super</span>::<span class='ident'>Role</span>::<span class='ident'>Sign</span>));
        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>k1</span>.<span class='ident'>can</span>(<span class='kw'>super</span>::<span class='ident'>Role</span>::<span class='ident'>Encrypt</span>));
        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>k1</span>.<span class='ident'>can</span>(<span class='kw'>super</span>::<span class='ident'>Role</span>::<span class='ident'>Decrypt</span>));
        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>k1</span>.<span class='ident'>can</span>(<span class='kw'>super</span>::<span class='ident'>Role</span>::<span class='ident'>Verify</span>));
        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>k1</span>.<span class='ident'>can</span>(<span class='kw'>super</span>::<span class='ident'>Role</span>::<span class='ident'>Sign</span>));
    }

    <span class='attribute'>#[<span class='ident'>test</span>]</span>
    <span class='kw'>fn</span> <span class='ident'>test_private_key_from_pem</span>() {
        <span class='kw'>let</span> <span class='ident'>key_path</span> <span class='op'>=</span> <span class='ident'>Path</span>::<span class='ident'>new</span>(<span class='string'>&quot;test/key.pem&quot;</span>);
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>file</span> <span class='op'>=</span> <span class='ident'>File</span>::<span class='ident'>open</span>(<span class='kw-2'>&amp;</span><span class='ident'>key_path</span>)
                           .<span class='ident'>ok</span>()
                           .<span class='ident'>expect</span>(<span class='string'>&quot;Failed to open `test/key.pem`&quot;</span>);

        <span class='kw'>super</span>::<span class='ident'>PKey</span>::<span class='ident'>private_key_from_pem</span>(<span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='ident'>file</span>).<span class='ident'>unwrap</span>();
    }

    <span class='attribute'>#[<span class='ident'>test</span>]</span>
    <span class='kw'>fn</span> <span class='ident'>test_public_key_from_pem</span>() {
        <span class='kw'>let</span> <span class='ident'>key_path</span> <span class='op'>=</span> <span class='ident'>Path</span>::<span class='ident'>new</span>(<span class='string'>&quot;test/key.pem.pub&quot;</span>);
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>file</span> <span class='op'>=</span> <span class='ident'>File</span>::<span class='ident'>open</span>(<span class='kw-2'>&amp;</span><span class='ident'>key_path</span>)
                           .<span class='ident'>ok</span>()
                           .<span class='ident'>expect</span>(<span class='string'>&quot;Failed to open `test/key.pem.pub`&quot;</span>);

        <span class='kw'>super</span>::<span class='ident'>PKey</span>::<span class='ident'>public_key_from_pem</span>(<span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='ident'>file</span>).<span class='ident'>unwrap</span>();
    }

    <span class='attribute'>#[<span class='ident'>test</span>]</span>
    <span class='kw'>fn</span> <span class='ident'>test_private_rsa_key_from_pem</span>() {
        <span class='kw'>let</span> <span class='ident'>key_path</span> <span class='op'>=</span> <span class='ident'>Path</span>::<span class='ident'>new</span>(<span class='string'>&quot;test/key.pem&quot;</span>);
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>file</span> <span class='op'>=</span> <span class='ident'>File</span>::<span class='ident'>open</span>(<span class='kw-2'>&amp;</span><span class='ident'>key_path</span>)
                           .<span class='ident'>ok</span>()
                           .<span class='ident'>expect</span>(<span class='string'>&quot;Failed to open `test/key.pem`&quot;</span>);

        <span class='kw'>super</span>::<span class='ident'>PKey</span>::<span class='ident'>private_rsa_key_from_pem</span>(<span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='ident'>file</span>).<span class='ident'>unwrap</span>();
    }

    <span class='attribute'>#[<span class='ident'>test</span>]</span>
    <span class='kw'>fn</span> <span class='ident'>test_public_rsa_key_from_pem</span>() {
        <span class='kw'>let</span> <span class='ident'>key_path</span> <span class='op'>=</span> <span class='ident'>Path</span>::<span class='ident'>new</span>(<span class='string'>&quot;test/key.pem.pub&quot;</span>);
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>file</span> <span class='op'>=</span> <span class='ident'>File</span>::<span class='ident'>open</span>(<span class='kw-2'>&amp;</span><span class='ident'>key_path</span>)
                           .<span class='ident'>ok</span>()
                           .<span class='ident'>expect</span>(<span class='string'>&quot;Failed to open `test/key.pem.pub`&quot;</span>);

        <span class='kw'>super</span>::<span class='ident'>PKey</span>::<span class='ident'>public_rsa_key_from_pem</span>(<span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='ident'>file</span>).<span class='ident'>unwrap</span>();
    }

    <span class='attribute'>#[<span class='ident'>test</span>]</span>
    <span class='kw'>fn</span> <span class='ident'>test_private_encrypt</span>() {
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>k0</span> <span class='op'>=</span> <span class='kw'>super</span>::<span class='ident'>PKey</span>::<span class='ident'>new</span>();
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>k1</span> <span class='op'>=</span> <span class='kw'>super</span>::<span class='ident'>PKey</span>::<span class='ident'>new</span>();
        <span class='kw'>let</span> <span class='ident'>msg</span> <span class='op'>=</span> <span class='macro'>vec</span><span class='macro'>!</span>[<span class='number'>0xdeu8</span>, <span class='number'>0xadu8</span>, <span class='number'>0xd0u8</span>, <span class='number'>0x0du8</span>];
        <span class='ident'>k0</span>.<span class='ident'>gen</span>(<span class='number'>512</span>);
        <span class='ident'>k1</span>.<span class='ident'>load_pub</span>(<span class='kw-2'>&amp;</span><span class='ident'>k0</span>.<span class='ident'>save_pub</span>());
        <span class='kw'>let</span> <span class='ident'>emsg</span> <span class='op'>=</span> <span class='ident'>k0</span>.<span class='ident'>private_encrypt</span>(<span class='kw-2'>&amp;</span><span class='ident'>msg</span>);
        <span class='kw'>let</span> <span class='ident'>dmsg</span> <span class='op'>=</span> <span class='ident'>k1</span>.<span class='ident'>public_decrypt</span>(<span class='kw-2'>&amp;</span><span class='ident'>emsg</span>);
        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>msg</span> <span class='op'>==</span> <span class='ident'>dmsg</span>);
    }

    <span class='attribute'>#[<span class='ident'>test</span>]</span>
    <span class='kw'>fn</span> <span class='ident'>test_public_encrypt</span>() {
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>k0</span> <span class='op'>=</span> <span class='kw'>super</span>::<span class='ident'>PKey</span>::<span class='ident'>new</span>();
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>k1</span> <span class='op'>=</span> <span class='kw'>super</span>::<span class='ident'>PKey</span>::<span class='ident'>new</span>();
        <span class='kw'>let</span> <span class='ident'>msg</span> <span class='op'>=</span> <span class='macro'>vec</span><span class='macro'>!</span>[<span class='number'>0xdeu8</span>, <span class='number'>0xadu8</span>, <span class='number'>0xd0u8</span>, <span class='number'>0x0du8</span>];
        <span class='ident'>k0</span>.<span class='ident'>gen</span>(<span class='number'>512</span>);
        <span class='ident'>k1</span>.<span class='ident'>load_pub</span>(<span class='kw-2'>&amp;</span><span class='ident'>k0</span>.<span class='ident'>save_pub</span>());
        <span class='kw'>let</span> <span class='ident'>emsg</span> <span class='op'>=</span> <span class='ident'>k1</span>.<span class='ident'>public_encrypt</span>(<span class='kw-2'>&amp;</span><span class='ident'>msg</span>);
        <span class='kw'>let</span> <span class='ident'>dmsg</span> <span class='op'>=</span> <span class='ident'>k0</span>.<span class='ident'>private_decrypt</span>(<span class='kw-2'>&amp;</span><span class='ident'>emsg</span>);
        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>msg</span> <span class='op'>==</span> <span class='ident'>dmsg</span>);
    }

    <span class='attribute'>#[<span class='ident'>test</span>]</span>
    <span class='kw'>fn</span> <span class='ident'>test_public_encrypt_pkcs</span>() {
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>k0</span> <span class='op'>=</span> <span class='kw'>super</span>::<span class='ident'>PKey</span>::<span class='ident'>new</span>();
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>k1</span> <span class='op'>=</span> <span class='kw'>super</span>::<span class='ident'>PKey</span>::<span class='ident'>new</span>();
        <span class='kw'>let</span> <span class='ident'>msg</span> <span class='op'>=</span> <span class='macro'>vec</span><span class='macro'>!</span>[<span class='number'>0xdeu8</span>, <span class='number'>0xadu8</span>, <span class='number'>0xd0u8</span>, <span class='number'>0x0du8</span>];
        <span class='ident'>k0</span>.<span class='ident'>gen</span>(<span class='number'>512</span>);
        <span class='ident'>k1</span>.<span class='ident'>load_pub</span>(<span class='kw-2'>&amp;</span><span class='ident'>k0</span>.<span class='ident'>save_pub</span>());
        <span class='kw'>let</span> <span class='ident'>emsg</span> <span class='op'>=</span> <span class='ident'>k1</span>.<span class='ident'>public_encrypt_with_padding</span>(<span class='kw-2'>&amp;</span><span class='ident'>msg</span>, <span class='kw'>super</span>::<span class='ident'>EncryptionPadding</span>::<span class='ident'>PKCS1v15</span>);
        <span class='kw'>let</span> <span class='ident'>dmsg</span> <span class='op'>=</span> <span class='ident'>k0</span>.<span class='ident'>private_decrypt_with_padding</span>(<span class='kw-2'>&amp;</span><span class='ident'>emsg</span>, <span class='kw'>super</span>::<span class='ident'>EncryptionPadding</span>::<span class='ident'>PKCS1v15</span>);
        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>msg</span> <span class='op'>==</span> <span class='ident'>dmsg</span>);
    }

    <span class='attribute'>#[<span class='ident'>test</span>]</span>
    <span class='kw'>fn</span> <span class='ident'>test_sign</span>() {
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>k0</span> <span class='op'>=</span> <span class='kw'>super</span>::<span class='ident'>PKey</span>::<span class='ident'>new</span>();
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>k1</span> <span class='op'>=</span> <span class='kw'>super</span>::<span class='ident'>PKey</span>::<span class='ident'>new</span>();
        <span class='kw'>let</span> <span class='ident'>msg</span> <span class='op'>=</span> <span class='macro'>vec</span><span class='macro'>!</span>[<span class='number'>0xdeu8</span>, <span class='number'>0xadu8</span>, <span class='number'>0xd0u8</span>, <span class='number'>0x0du8</span>];
        <span class='ident'>k0</span>.<span class='ident'>gen</span>(<span class='number'>512</span>);
        <span class='ident'>k1</span>.<span class='ident'>load_pub</span>(<span class='kw-2'>&amp;</span><span class='ident'>k0</span>.<span class='ident'>save_pub</span>());
        <span class='kw'>let</span> <span class='ident'>sig</span> <span class='op'>=</span> <span class='ident'>k0</span>.<span class='ident'>sign</span>(<span class='kw-2'>&amp;</span><span class='ident'>msg</span>);
        <span class='kw'>let</span> <span class='ident'>rv</span> <span class='op'>=</span> <span class='ident'>k1</span>.<span class='ident'>verify</span>(<span class='kw-2'>&amp;</span><span class='ident'>msg</span>, <span class='kw-2'>&amp;</span><span class='ident'>sig</span>);
        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>rv</span> <span class='op'>==</span> <span class='bool-val'>true</span>);
    }

    <span class='attribute'>#[<span class='ident'>test</span>]</span>
    <span class='kw'>fn</span> <span class='ident'>test_sign_hashes</span>() {
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>k0</span> <span class='op'>=</span> <span class='kw'>super</span>::<span class='ident'>PKey</span>::<span class='ident'>new</span>();
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>k1</span> <span class='op'>=</span> <span class='kw'>super</span>::<span class='ident'>PKey</span>::<span class='ident'>new</span>();
        <span class='kw'>let</span> <span class='ident'>msg</span> <span class='op'>=</span> <span class='macro'>vec</span><span class='macro'>!</span>[<span class='number'>0xdeu8</span>, <span class='number'>0xadu8</span>, <span class='number'>0xd0u8</span>, <span class='number'>0x0du8</span>];
        <span class='ident'>k0</span>.<span class='ident'>gen</span>(<span class='number'>512</span>);
        <span class='ident'>k1</span>.<span class='ident'>load_pub</span>(<span class='kw-2'>&amp;</span><span class='ident'>k0</span>.<span class='ident'>save_pub</span>());

        <span class='kw'>let</span> <span class='ident'>sig</span> <span class='op'>=</span> <span class='ident'>k0</span>.<span class='ident'>sign_with_hash</span>(<span class='kw-2'>&amp;</span><span class='ident'>msg</span>, <span class='ident'>MD5</span>);

        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>k1</span>.<span class='ident'>verify_with_hash</span>(<span class='kw-2'>&amp;</span><span class='ident'>msg</span>, <span class='kw-2'>&amp;</span><span class='ident'>sig</span>, <span class='ident'>MD5</span>));
        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>k1</span>.<span class='ident'>verify_with_hash</span>(<span class='kw-2'>&amp;</span><span class='ident'>msg</span>, <span class='kw-2'>&amp;</span><span class='ident'>sig</span>, <span class='ident'>SHA1</span>));
    }

    <span class='attribute'>#[<span class='ident'>test</span>]</span>
    <span class='kw'>fn</span> <span class='ident'>test_eq</span>() {
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>k0</span> <span class='op'>=</span> <span class='kw'>super</span>::<span class='ident'>PKey</span>::<span class='ident'>new</span>();
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>p0</span> <span class='op'>=</span> <span class='kw'>super</span>::<span class='ident'>PKey</span>::<span class='ident'>new</span>();
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>k1</span> <span class='op'>=</span> <span class='kw'>super</span>::<span class='ident'>PKey</span>::<span class='ident'>new</span>();
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>p1</span> <span class='op'>=</span> <span class='kw'>super</span>::<span class='ident'>PKey</span>::<span class='ident'>new</span>();
        <span class='ident'>k0</span>.<span class='ident'>gen</span>(<span class='number'>512</span>);
        <span class='ident'>k1</span>.<span class='ident'>gen</span>(<span class='number'>512</span>);
        <span class='ident'>p0</span>.<span class='ident'>load_pub</span>(<span class='kw-2'>&amp;</span><span class='ident'>k0</span>.<span class='ident'>save_pub</span>());
        <span class='ident'>p1</span>.<span class='ident'>load_pub</span>(<span class='kw-2'>&amp;</span><span class='ident'>k1</span>.<span class='ident'>save_pub</span>());

        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>k0</span>.<span class='ident'>public_eq</span>(<span class='kw-2'>&amp;</span><span class='ident'>k0</span>));
        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>k1</span>.<span class='ident'>public_eq</span>(<span class='kw-2'>&amp;</span><span class='ident'>k1</span>));
        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>p0</span>.<span class='ident'>public_eq</span>(<span class='kw-2'>&amp;</span><span class='ident'>p0</span>));
        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>p1</span>.<span class='ident'>public_eq</span>(<span class='kw-2'>&amp;</span><span class='ident'>p1</span>));
        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>k0</span>.<span class='ident'>public_eq</span>(<span class='kw-2'>&amp;</span><span class='ident'>p0</span>));
        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>k1</span>.<span class='ident'>public_eq</span>(<span class='kw-2'>&amp;</span><span class='ident'>p1</span>));

        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>k0</span>.<span class='ident'>public_eq</span>(<span class='kw-2'>&amp;</span><span class='ident'>k1</span>));
        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>p0</span>.<span class='ident'>public_eq</span>(<span class='kw-2'>&amp;</span><span class='ident'>p1</span>));
        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>k0</span>.<span class='ident'>public_eq</span>(<span class='kw-2'>&amp;</span><span class='ident'>p1</span>));
        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>p0</span>.<span class='ident'>public_eq</span>(<span class='kw-2'>&amp;</span><span class='ident'>k1</span>));
    }

    <span class='attribute'>#[<span class='ident'>test</span>]</span>
    <span class='kw'>fn</span> <span class='ident'>test_pem</span>() {
        <span class='kw'>let</span> <span class='ident'>key_path</span> <span class='op'>=</span> <span class='ident'>Path</span>::<span class='ident'>new</span>(<span class='string'>&quot;test/key.pem&quot;</span>);
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>file</span> <span class='op'>=</span> <span class='ident'>File</span>::<span class='ident'>open</span>(<span class='kw-2'>&amp;</span><span class='ident'>key_path</span>)
                           .<span class='ident'>ok</span>()
                           .<span class='ident'>expect</span>(<span class='string'>&quot;Failed to open `test/key.pem`&quot;</span>);

        <span class='kw'>let</span> <span class='ident'>key</span> <span class='op'>=</span> <span class='kw'>super</span>::<span class='ident'>PKey</span>::<span class='ident'>private_key_from_pem</span>(<span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='ident'>file</span>).<span class='ident'>unwrap</span>();

        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>priv_key</span> <span class='op'>=</span> <span class='ident'>Vec</span>::<span class='ident'>new</span>();
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>pub_key</span> <span class='op'>=</span> <span class='ident'>Vec</span>::<span class='ident'>new</span>();

        <span class='ident'>key</span>.<span class='ident'>write_pem</span>(<span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='ident'>priv_key</span>).<span class='ident'>unwrap</span>();
        <span class='ident'>key</span>.<span class='ident'>write_pub_pem</span>(<span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='ident'>pub_key</span>).<span class='ident'>unwrap</span>();

        <span class='comment'>// As a super-simple verification, just check that the buffers contain</span>
        <span class='comment'>// the `PRIVATE KEY` or `PUBLIC KEY` strings.</span>
        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>priv_key</span>.<span class='ident'>windows</span>(<span class='number'>11</span>).<span class='ident'>any</span>(<span class='op'>|</span><span class='ident'>s</span><span class='op'>|</span> <span class='ident'>s</span> <span class='op'>==</span> <span class='string'>b&quot;PRIVATE KEY&quot;</span>));
        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>pub_key</span>.<span class='ident'>windows</span>(<span class='number'>10</span>).<span class='ident'>any</span>(<span class='op'>|</span><span class='ident'>s</span><span class='op'>|</span> <span class='ident'>s</span> <span class='op'>==</span> <span class='string'>b&quot;PUBLIC KEY&quot;</span>));
    }

    <span class='attribute'>#[<span class='ident'>test</span>]</span>
    <span class='kw'>fn</span> <span class='ident'>test_public_key_from_raw</span>() {
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>k0</span> <span class='op'>=</span> <span class='kw'>super</span>::<span class='ident'>PKey</span>::<span class='ident'>new</span>();
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>k1</span> <span class='op'>=</span> <span class='kw'>super</span>::<span class='ident'>PKey</span>::<span class='ident'>new</span>();
        <span class='kw'>let</span> <span class='ident'>msg</span> <span class='op'>=</span> <span class='macro'>vec</span><span class='macro'>!</span>[<span class='number'>0xdeu8</span>, <span class='number'>0xadu8</span>, <span class='number'>0xd0u8</span>, <span class='number'>0x0du8</span>];

        <span class='ident'>k0</span>.<span class='ident'>gen</span>(<span class='number'>512</span>);
        <span class='kw'>let</span> <span class='ident'>sig</span> <span class='op'>=</span> <span class='ident'>k0</span>.<span class='ident'>sign</span>(<span class='kw-2'>&amp;</span><span class='ident'>msg</span>);

        <span class='kw'>let</span> <span class='ident'>r0</span> <span class='op'>=</span> <span class='ident'>k0</span>.<span class='ident'>get_rsa</span>();
        <span class='kw'>let</span> <span class='ident'>r1</span> <span class='op'>=</span> <span class='ident'>RSA</span>::<span class='ident'>from_public_components</span>(<span class='ident'>r0</span>.<span class='ident'>n</span>().<span class='ident'>expect</span>(<span class='string'>&quot;n&quot;</span>), <span class='ident'>r0</span>.<span class='ident'>e</span>().<span class='ident'>expect</span>(<span class='string'>&quot;e&quot;</span>)).<span class='ident'>expect</span>(<span class='string'>&quot;r1&quot;</span>);
        <span class='ident'>k1</span>.<span class='ident'>set_rsa</span>(<span class='kw-2'>&amp;</span><span class='ident'>r1</span>);

        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>k1</span>.<span class='ident'>can</span>(<span class='kw'>super</span>::<span class='ident'>Role</span>::<span class='ident'>Encrypt</span>));
        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>k1</span>.<span class='ident'>can</span>(<span class='kw'>super</span>::<span class='ident'>Role</span>::<span class='ident'>Decrypt</span>));
        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>k1</span>.<span class='ident'>can</span>(<span class='kw'>super</span>::<span class='ident'>Role</span>::<span class='ident'>Verify</span>));
        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>k1</span>.<span class='ident'>can</span>(<span class='kw'>super</span>::<span class='ident'>Role</span>::<span class='ident'>Sign</span>));

        <span class='kw'>let</span> <span class='ident'>rv</span> <span class='op'>=</span> <span class='ident'>k1</span>.<span class='ident'>verify</span>(<span class='kw-2'>&amp;</span><span class='ident'>msg</span>, <span class='kw-2'>&amp;</span><span class='ident'>sig</span>);
        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>rv</span> <span class='op'>==</span> <span class='bool-val'>true</span>);
    }

    <span class='attribute'>#[<span class='ident'>test</span>]</span>
    <span class='attribute'>#[<span class='ident'>should_panic</span>(<span class='ident'>expected</span> <span class='op'>=</span> <span class='string'>&quot;Could not get RSA key for encryption&quot;</span>)]</span>
    <span class='kw'>fn</span> <span class='ident'>test_nokey_encrypt</span>() {
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>pkey</span> <span class='op'>=</span> <span class='kw'>super</span>::<span class='ident'>PKey</span>::<span class='ident'>new</span>();
        <span class='ident'>pkey</span>.<span class='ident'>load_pub</span>(<span class='kw-2'>&amp;</span>[]);
        <span class='ident'>pkey</span>.<span class='ident'>encrypt</span>(<span class='kw-2'>&amp;</span>[]);
    }

    <span class='attribute'>#[<span class='ident'>test</span>]</span>
    <span class='attribute'>#[<span class='ident'>should_panic</span>(<span class='ident'>expected</span> <span class='op'>=</span> <span class='string'>&quot;Could not get RSA key for decryption&quot;</span>)]</span>
    <span class='kw'>fn</span> <span class='ident'>test_nokey_decrypt</span>() {
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>pkey</span> <span class='op'>=</span> <span class='kw'>super</span>::<span class='ident'>PKey</span>::<span class='ident'>new</span>();
        <span class='ident'>pkey</span>.<span class='ident'>load_priv</span>(<span class='kw-2'>&amp;</span>[]);
        <span class='ident'>pkey</span>.<span class='ident'>decrypt</span>(<span class='kw-2'>&amp;</span>[]);
    }

    <span class='attribute'>#[<span class='ident'>test</span>]</span>
    <span class='attribute'>#[<span class='ident'>should_panic</span>(<span class='ident'>expected</span> <span class='op'>=</span> <span class='string'>&quot;Could not get RSA key for signing&quot;</span>)]</span>
    <span class='kw'>fn</span> <span class='ident'>test_nokey_sign</span>() {
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>pkey</span> <span class='op'>=</span> <span class='kw'>super</span>::<span class='ident'>PKey</span>::<span class='ident'>new</span>();
        <span class='ident'>pkey</span>.<span class='ident'>load_priv</span>(<span class='kw-2'>&amp;</span>[]);
        <span class='ident'>pkey</span>.<span class='ident'>sign</span>(<span class='kw-2'>&amp;</span>[]);
    }

    <span class='attribute'>#[<span class='ident'>test</span>]</span>
    <span class='attribute'>#[<span class='ident'>should_panic</span>(<span class='ident'>expected</span> <span class='op'>=</span> <span class='string'>&quot;Could not get RSA key for verification&quot;</span>)]</span>
    <span class='kw'>fn</span> <span class='ident'>test_nokey_verify</span>() {
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>pkey</span> <span class='op'>=</span> <span class='kw'>super</span>::<span class='ident'>PKey</span>::<span class='ident'>new</span>();
        <span class='ident'>pkey</span>.<span class='ident'>load_pub</span>(<span class='kw-2'>&amp;</span>[]);
        <span class='ident'>pkey</span>.<span class='ident'>verify</span>(<span class='kw-2'>&amp;</span>[], <span class='kw-2'>&amp;</span>[]);
    }

    <span class='attribute'>#[<span class='ident'>test</span>]</span>
    <span class='kw'>fn</span> <span class='ident'>test_pkey_clone_creates_copy</span>() {
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>pkey</span> <span class='op'>=</span> <span class='kw'>super</span>::<span class='ident'>PKey</span>::<span class='ident'>new</span>();
        <span class='ident'>pkey</span>.<span class='ident'>gen</span>(<span class='number'>512</span>);
        <span class='kw'>let</span> <span class='ident'>old_pkey_n</span> <span class='op'>=</span> <span class='ident'>pkey</span>.<span class='ident'>get_rsa</span>().<span class='ident'>n</span>().<span class='ident'>unwrap</span>();

        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>pkey2</span> <span class='op'>=</span> <span class='ident'>pkey</span>.<span class='ident'>clone</span>();
        <span class='ident'>pkey2</span>.<span class='ident'>gen</span>(<span class='number'>512</span>);

        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>old_pkey_n</span> <span class='op'>==</span> <span class='ident'>pkey</span>.<span class='ident'>get_rsa</span>().<span class='ident'>n</span>().<span class='ident'>unwrap</span>());
    }

    <span class='attribute'>#[<span class='ident'>test</span>]</span>
    <span class='kw'>fn</span> <span class='ident'>test_pkey_clone_copies_private</span>() {
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>pkey</span> <span class='op'>=</span> <span class='kw'>super</span>::<span class='ident'>PKey</span>::<span class='ident'>new</span>();
        <span class='ident'>pkey</span>.<span class='ident'>gen</span>(<span class='number'>512</span>);

        <span class='kw'>let</span> <span class='ident'>pkey2</span> <span class='op'>=</span> <span class='ident'>pkey</span>.<span class='ident'>clone</span>();

        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>pkey</span>.<span class='ident'>get_rsa</span>().<span class='ident'>q</span>().<span class='ident'>unwrap</span>() <span class='op'>==</span> <span class='ident'>pkey2</span>.<span class='ident'>get_rsa</span>().<span class='ident'>q</span>().<span class='ident'>unwrap</span>());
    }

    <span class='attribute'>#[<span class='ident'>test</span>]</span>
    <span class='kw'>fn</span> <span class='ident'>test_pkey_clone_copies_public</span>() {
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>pkey</span> <span class='op'>=</span> <span class='kw'>super</span>::<span class='ident'>PKey</span>::<span class='ident'>new</span>();
        <span class='ident'>pkey</span>.<span class='ident'>gen</span>(<span class='number'>512</span>);
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>pub_key</span> <span class='op'>=</span> <span class='kw'>super</span>::<span class='ident'>PKey</span>::<span class='ident'>new</span>();
        <span class='ident'>pub_key</span>.<span class='ident'>load_pub</span>(<span class='kw-2'>&amp;</span><span class='ident'>pkey</span>.<span class='ident'>save_pub</span>()[..]);

        <span class='kw'>let</span> <span class='ident'>pub_key2</span> <span class='op'>=</span> <span class='ident'>pub_key</span>.<span class='ident'>clone</span>();

        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>pub_key</span>.<span class='ident'>get_rsa</span>().<span class='ident'>n</span>().<span class='ident'>unwrap</span>() <span class='op'>==</span> <span class='ident'>pub_key2</span>.<span class='ident'>get_rsa</span>().<span class='ident'>n</span>().<span class='ident'>unwrap</span>());
    }
}
</pre>
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