1<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>struct shash_alg</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="index.html" title="Linux Kernel Crypto API"><link rel="up" href="ch05s10.html" title="Message Digest Algorithm Definitions"><link rel="prev" href="API-struct-ahash-alg.html" title="struct ahash_alg"><link rel="next" href="ch05s11.html" title="Asynchronous Message Digest API"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"><span class="phrase">struct shash_alg</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-struct-ahash-alg.html">Prev</a> </td><th width="60%" align="center">Message Digest Algorithm Definitions</th><td width="20%" align="right"> <a accesskey="n" href="ch05s11.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-struct-shash-alg"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>struct shash_alg — 
2  synchronous message digest definition
3 </p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><pre class="programlisting">
4struct shash_alg {
5  int (* init) (struct shash_desc *desc);
6  int (* update) (struct shash_desc *desc, const u8 *data,unsigned int len);
7  int (* final) (struct shash_desc *desc, u8 *out);
8  int (* finup) (struct shash_desc *desc, const u8 *data,unsigned int len, u8 *out);
9  int (* digest) (struct shash_desc *desc, const u8 *data,unsigned int len, u8 *out);
10  int (* export) (struct shash_desc *desc, void *out);
11  int (* import) (struct shash_desc *desc, const void *in);
12  int (* setkey) (struct crypto_shash *tfm, const u8 *key,unsigned int keylen);
13  unsigned int descsize;
14  unsigned int digestsize;
15  unsigned int statesize;
16  struct crypto_alg base;
17};  </pre></div><div class="refsect1"><a name="id-1.7.12.6.5"></a><h2>Members</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term">init</span></dt><dd><p>
18see struct ahash_alg
19      </p></dd><dt><span class="term">update</span></dt><dd><p>
20see struct ahash_alg
21      </p></dd><dt><span class="term">final</span></dt><dd><p>
22see struct ahash_alg
23      </p></dd><dt><span class="term">finup</span></dt><dd><p>
24see struct ahash_alg
25      </p></dd><dt><span class="term">digest</span></dt><dd><p>
26see struct ahash_alg
27      </p></dd><dt><span class="term">export</span></dt><dd><p>
28see struct ahash_alg
29      </p></dd><dt><span class="term">import</span></dt><dd><p>
30see struct ahash_alg
31      </p></dd><dt><span class="term">setkey</span></dt><dd><p>
32see struct ahash_alg
33      </p></dd><dt><span class="term">descsize</span></dt><dd><p>
34Size of the operational state for the message digest. This state
35size is the memory size that needs to be allocated for
36shash_desc.__ctx
37      </p></dd><dt><span class="term">digestsize</span></dt><dd><p>
38see struct ahash_alg
39      </p></dd><dt><span class="term">statesize</span></dt><dd><p>
40see struct ahash_alg
41      </p></dd><dt><span class="term">base</span></dt><dd><p>
42internally used
43      </p></dd></dl></div></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="API-struct-ahash-alg.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="ch05s10.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="ch05s11.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span class="phrase">struct ahash_alg</span> </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> Asynchronous Message Digest API</td></tr></table></div></body></html>
44