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| author | Laurent Bercot <ska-skaware@skarnet.org> | 2014-09-18 18:55:44 +0000 |
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| committer | Laurent Bercot <ska-skaware@skarnet.org> | 2014-09-18 18:55:44 +0000 |
| commit | 3534b428629be185e096be99e3bd5fdfe32d5544 (patch) | |
| tree | 210ef3198ed66bc7f7b7bf6a85e4579f455e5a36 /doc/libstdcrypto/index.html | |
| download | skalibs-3534b428629be185e096be99e3bd5fdfe32d5544.tar.xz | |
initial commit with rc for skalibs-2.0.0.0
Diffstat (limited to 'doc/libstdcrypto/index.html')
| -rw-r--r-- | doc/libstdcrypto/index.html | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/doc/libstdcrypto/index.html b/doc/libstdcrypto/index.html new file mode 100644 index 0000000..bbc5f08 --- /dev/null +++ b/doc/libstdcrypto/index.html @@ -0,0 +1,110 @@ +<html> + <head> + <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> + <meta http-equiv="Content-Language" content="en" /> + <title>skalibs: the stdcrypto library interface</title> + <meta name="Description" content="skalibs: the stdcrypto library interface" /> + <meta name="Keywords" content="skalibs stdcrypto libstdcrypto library interface" /> + <!-- <link rel="stylesheet" type="text/css" href="http://skarnet.org/default.css" /> --> + </head> +<body> + +<p> +<a href="../libskarnet.html">libskarnet</a><br /> +<a href="../index.html">skalibs</a><br /> +<a href="http://skarnet.org/software/">Software</a><br /> +<a href="http://skarnet.org/">skarnet.org</a> +</p> + +<h1> The <tt>stdcrypto</tt> library interface </h1> + +<p> +<tt>stdcrypto</tt> is a small collection of standard, +public-domain cryptographic primitives. Currently, the following +operations are provided: +</p> + +<ul> + <li> rc4 </li> + <li> md5 </li> + <li> sha1 </li> +</ul> + +<h2> Compiling </h2> + +<ul> + <li> Use <tt>#include <skalibs/stdcrypto.h></tt> </li> +</ul> + +<h2> Programming </h2> + +<p> + You should refer to the <tt>skalibs/stdcrypto.h</tt> header and included headers +for the exact function prototypes. +</p> + +<h3> <a name="rc4" /> +RC4 </h3> + +<pre> + RC4Schedule ctx ; + unsigned char const *key ; + unsigned int keylen ; + unsigned char const *in ; + unsigned char *out ; + unsigned int len ; + + rc4_init(&ctx, key, keylen) ; + rc4(&ctx, in, out, len) ; +</pre> + +<ul> + <li> <tt>rc4_init()</tt> initializes a RC4Schedule structure with a key <em>key</em>, +of length <em>keylen</em>. It then computes and throws away the first <tt>RC4_THROWAWAY</tt> +bytes, usually 100 </li> + <li> <tt>rc4()</tt> encrypts <em>len</em> bytes of <em>in</em> with the RC4 flow, and +stores the results into <em>out</em> </li> +</ul> + +<h3> <a name="md5" /> +MD5 </h3> + +<pre> + MD5Schedule ctx ; + char const *message ; + unsigned int messagelen ; + char digest[16] ; + + md5_init(&ctx) ; + md5_update(&ctx, message, messagelen) ; + md5_final(&ctx, digest) ; +</pre> + +<ul> + <li> <tt>md5_init()</tt> prepares a MD5Schedule structure for computation </li> + <li> <tt>md5_update()</tt> adds <em>message</em> to the message to be digested </li> + <li> <tt>md5_final()</tt> computes the digest </li> +</ul> + +<h3> <a name="sha1"></a> +SHA1 </h3> + +<pre> + SHA1Schedule ctx ; + char const *message ; + unsigned int messagelen ; + unsigned char digest[20] ; + + sha1_init(&ctx) ; + sha1_update(&ctx, message, messagelen) ; + sha1_final(&ctx, digest) ; +</pre> + +<ul> + <li> <tt>sha1_init()</tt> prepares a SHA1Schedule structure for computation </li> + <li> <tt>sha1_update()</tt> adds <em>message</em> to the message to be digested </li> + <li> <tt>sha1_final()</tt> computes the digest </li> +</ul> + +</body> +</html> |