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diff --git a/doc/doxyout/hcrypto/html/example__evp__cipher_8c-example.html b/doc/doxyout/hcrypto/html/example__evp__cipher_8c-example.html new file mode 100644 index 000000000000..bd9c2cc50ad3 --- /dev/null +++ b/doc/doxyout/hcrypto/html/example__evp__cipher_8c-example.html @@ -0,0 +1,173 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> +<html><head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8"> +<title>Heimdal crypto library: example_evp_cipher.c</title> +<link href="doxygen.css" rel="stylesheet" type="text/css"> +<link href="tabs.css" rel="stylesheet" type="text/css"> +</head><body> +<p> +<a href="http://www.h5l.org/"><img src="http://www.h5l.org/keyhole-heimdal.png" alt="keyhole logo"/></a> +</p> +<!-- end of header marker --> +<!-- Generated by Doxygen 1.5.6 --> +<div class="navigation" id="top"> + <div class="tabs"> + <ul> + <li><a href="index.html"><span>Main Page</span></a></li> + <li><a href="modules.html"><span>Modules</span></a></li> + <li><a href="examples.html"><span>Examples</span></a></li> + </ul> + </div> +</div> +<div class="contents"> +<h1>example_evp_cipher.c</h1>This is an example how to use <a class="el" href="group__hcrypto__evp.html#g98da5a5c1aa25d9cb2e4717fa11314bd">EVP_CipherInit_ex()</a>, <a class="el" href="group__hcrypto__evp.html#g863349e1001b36cfd6c4afedddd12862">EVP_CipherUpdate()</a> and <a class="el" href="group__hcrypto__evp.html#g714eef7d737fd68171d852043a4995de">EVP_CipherFinal_ex()</a>.<p> +<div class="fragment"><pre class="fragment"><span class="comment">/*</span> +<span class="comment"> * Copyright (c) 2008 Kungliga Tekniska Högskolan</span> +<span class="comment"> * (Royal Institute of Technology, Stockholm, Sweden).</span> +<span class="comment"> * All rights reserved.</span> +<span class="comment"> *</span> +<span class="comment"> * Redistribution and use in source and binary forms, with or without</span> +<span class="comment"> * modification, are permitted provided that the following conditions</span> +<span class="comment"> * are met:</span> +<span class="comment"> *</span> +<span class="comment"> * 1. Redistributions of source code must retain the above copyright</span> +<span class="comment"> * notice, this list of conditions and the following disclaimer.</span> +<span class="comment"> *</span> +<span class="comment"> * 2. Redistributions in binary form must reproduce the above copyright</span> +<span class="comment"> * notice, this list of conditions and the following disclaimer in the</span> +<span class="comment"> * documentation and/or other materials provided with the distribution.</span> +<span class="comment"> *</span> +<span class="comment"> * 3. Neither the name of the Institute nor the names of its contributors</span> +<span class="comment"> * may be used to endorse or promote products derived from this software</span> +<span class="comment"> * without specific prior written permission.</span> +<span class="comment"> *</span> +<span class="comment"> * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND</span> +<span class="comment"> * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE</span> +<span class="comment"> * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE</span> +<span class="comment"> * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE</span> +<span class="comment"> * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL</span> +<span class="comment"> * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS</span> +<span class="comment"> * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)</span> +<span class="comment"> * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT</span> +<span class="comment"> * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY</span> +<span class="comment"> * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF</span> +<span class="comment"> * SUCH DAMAGE.</span> +<span class="comment"> */</span> + +<span class="preprocessor">#include <krb5-types.h></span> <span class="comment">/* should really be stdint.h */</span> +<span class="preprocessor">#include <hcrypto/evp.h></span> + +<span class="preprocessor">#include <stdio.h></span> +<span class="preprocessor">#include <stdlib.h></span> +<span class="preprocessor">#include <string.h></span> +<span class="preprocessor">#include <err.h></span> +<span class="preprocessor">#include <assert.h></span> + +<span class="preprocessor">#include "roken.h"</span> + +<span class="comment">/* key and initial vector */</span> +<span class="keyword">static</span> <span class="keywordtype">char</span> key[16] = + <span class="stringliteral">"\xaa\xbb\x45\xd4\xaa\xbb\x45\xd4"</span> + <span class="stringliteral">"\xaa\xbb\x45\xd4\xaa\xbb\x45\xd4"</span>; +<span class="keyword">static</span> <span class="keywordtype">char</span> ivec[16] = + <span class="stringliteral">"\xaa\xbb\x45\xd4\xaa\xbb\x45\xd4"</span> + <span class="stringliteral">"\xaa\xbb\x45\xd4\xaa\xbb\x45\xd4"</span>; + +<span class="keyword">static</span> <span class="keywordtype">void</span> +usage(<span class="keywordtype">int</span> exit_code) __attribute__((noreturn)); + +<span class="keyword">static</span> <span class="keywordtype">void</span> +usage(<span class="keywordtype">int</span> exit_code) +{ + printf(<span class="stringliteral">"usage: %s in out\n"</span>, getprogname()); + exit(exit_code); +} + + +<span class="keywordtype">int</span> +main(<span class="keywordtype">int</span> argc, <span class="keywordtype">char</span> **argv) +{ + <span class="keywordtype">int</span> encryptp = 1; + <span class="keyword">const</span> <span class="keywordtype">char</span> *ifn = NULL, *ofn = NULL; + FILE *in, *out; + <span class="keywordtype">void</span> *ibuf, *obuf; + <span class="keywordtype">int</span> ilen, olen; + <span class="keywordtype">size_t</span> block_size = 0; + <span class="keyword">const</span> EVP_CIPHER *c = <a name="a0"></a><a class="code" href="group__hcrypto__evp.html#g2747bac943db15c97167ac37fdc2af43">EVP_aes_128_cbc</a>(); + EVP_CIPHER_CTX ctx; + <span class="keywordtype">int</span> ret; + + setprogname(argv[0]); + + <span class="keywordflow">if</span> (argc == 2) { + <span class="keywordflow">if</span> (strcmp(argv[1], <span class="stringliteral">"--version"</span>) == 0) { + printf(<span class="stringliteral">"version"</span>); + exit(0); + } + <span class="keywordflow">if</span> (strcmp(argv[1], <span class="stringliteral">"--help"</span>) == 0) + usage(0); + usage(1); + } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (argc == 4) { + block_size = atoi(argv[1]); + <span class="keywordflow">if</span> (block_size == 0) + errx(1, <span class="stringliteral">"invalid blocksize %s"</span>, argv[1]); + ifn = argv[2]; + ofn = argv[3]; + } <span class="keywordflow">else</span> + usage(1); + + in = fopen(ifn, <span class="stringliteral">"r"</span>); + <span class="keywordflow">if</span> (in == NULL) + errx(1, <span class="stringliteral">"failed to open input file"</span>); + out = fopen(ofn, <span class="stringliteral">"w+"</span>); + <span class="keywordflow">if</span> (out == NULL) + errx(1, <span class="stringliteral">"failed to open output file"</span>); + + <span class="comment">/* Check that key and ivec are long enough */</span> + assert(<a name="a1"></a><a class="code" href="group__hcrypto__evp.html#g4793a9e130da86ac42c497b19395b748">EVP_CIPHER_key_length</a>(c) <= <span class="keyword">sizeof</span>(key)); + assert(<a name="a2"></a><a class="code" href="group__hcrypto__evp.html#g7edebe76d19dee11686a6698d24f19f5">EVP_CIPHER_iv_length</a>(c) <= <span class="keyword">sizeof</span>(ivec)); + + <span class="comment">/*</span> +<span class="comment"> * Allocate buffer, the output buffer is at least</span> +<span class="comment"> * EVP_CIPHER_block_size() longer</span> +<span class="comment"> */</span> + ibuf = malloc(block_size); + obuf = malloc(block_size + <a name="a3"></a><a class="code" href="group__hcrypto__evp.html#g3123ff4b426783dd972538249b9e9d4d">EVP_CIPHER_block_size</a>(c)); + + <span class="comment">/*</span> +<span class="comment"> * Init the memory used for EVP_CIPHER_CTX and set the key and</span> +<span class="comment"> * ivec.</span> +<span class="comment"> */</span> + <a name="a4"></a><a class="code" href="group__hcrypto__evp.html#g13d0ff0e87312566cb6b3591157f9754">EVP_CIPHER_CTX_init</a>(&ctx); + <a name="a5"></a><a class="code" href="group__hcrypto__evp.html#g98da5a5c1aa25d9cb2e4717fa11314bd">EVP_CipherInit_ex</a>(&ctx, c, NULL, key, ivec, encryptp); + + <span class="comment">/* read in buffer */</span> + <span class="keywordflow">while</span> ((ilen = fread(ibuf, 1, block_size, in)) > 0) { + <span class="comment">/* encrypto/decrypt */</span> + ret = <a name="a6"></a><a class="code" href="group__hcrypto__evp.html#g863349e1001b36cfd6c4afedddd12862">EVP_CipherUpdate</a>(&ctx, obuf, &olen, ibuf, ilen); + <span class="keywordflow">if</span> (ret != 1) { + <a name="a7"></a><a class="code" href="group__hcrypto__evp.html#gc16dd3987cd90c8bcdbad5290c558359">EVP_CIPHER_CTX_cleanup</a>(&ctx); + errx(1, <span class="stringliteral">"EVP_CipherUpdate failed"</span>); + } + <span class="comment">/* write out to output file */</span> + fwrite(obuf, 1, olen, out); + } + <span class="comment">/* done reading */</span> + fclose(in); + + <span class="comment">/* clear up any last bytes left in the output buffer */</span> + ret = <a name="a8"></a><a class="code" href="group__hcrypto__evp.html#g714eef7d737fd68171d852043a4995de">EVP_CipherFinal_ex</a>(&ctx, obuf, &olen); + <a class="code" href="group__hcrypto__evp.html#gc16dd3987cd90c8bcdbad5290c558359">EVP_CIPHER_CTX_cleanup</a>(&ctx); + <span class="keywordflow">if</span> (ret != 1) + errx(1, <span class="stringliteral">"EVP_CipherFinal_ex failed"</span>); + + <span class="comment">/* write the last bytes out and close */</span> + fwrite(obuf, 1, olen, out); + fclose(out); + + <span class="keywordflow">return</span> 0; +} +</pre></div> </div> +<hr size="1"><address style="text-align: right;"><small> +Generated on Sat Jul 30 13:45:37 2011 for Heimdal crypto library by <a href="http://www.doxygen.org/index.html"><img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.6</small></address> +</body> +</html> |