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13<h1 align="left">MATH_SHA256GetHash <img src="../../image/NTR.gif"align="middle"><img src="../../image/TWL.gif" align="middle"></H1>
14<H2>Syntax</H2>
15
16<dl>
17  <dd>
18  <PRE><CODE>#include &lt;nitro/math/dgt.h&gt;
19
20static inline void MATH_SHA256GetHash( <A href="MATHSHA256Context.html">MATHSHA256Context</A> *context, void* digest );
21</CODE></PRE>
22  </dd>
23</dl><h2>Arguments</h2>
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25<table border="1" width="100%">
26    <TR>
27      <TD width="176"><em><strong><font face="Courier New">context</font></strong></em></TD>
28      <TD width="670">Pointer to the context structure used for SHA-256 generation.</TD>
29    </TR>
30    <TR>
31      <TD width="176"><em><strong><font face="Courier New">digest</font></strong></em></TD>
32      <TD width="670">Pointer to the memory location that holds the message digest value.</TD>
33    </TR>
34  </table>
35<h2>Return Values</h2>
36<p>None.</p>
37<H2>Description</H2>
38<P>This function gets the digest value using SHA-256. You must use the <CODE><A href="MATH_SHA256Init.html">MATH_SHA256Init</A></CODE> function to initialize the <CODE>context</CODE> argument and then use the <CODE><A href="MATH_SHA256Update.html">MATH_SHA256Update</A></CODE> function to provide the input data.<BR>The length of the generated message digest value is 256 bits or <CODE>MATH_SHA256_DIGEST_SIZE</CODE> (32) bytes. Use the &quot;digest&quot; argument to pass an area that can store a value of this size. This function rewrites <CODE>context</CODE> internally, so you cannot continue to use the same context with the <CODE><A href="MATH_SHA256Update.html">MATH_SHA256Update</A></CODE> function. <BR>SHA-256 is an algorithm to find the message digest value. For details, refer to the Federal Information Processing Standard, FIPS PUB 180-2.
39</P>
40<h2>See Also</h2>
41<P><CODE><A href="MATH_SHA256Init.html">MATH_SHA256Init</A>, <A href="MATH_SHA256Update.html">MATH_SHA256Update</A></CODE></P>
42<H2>Revision History</H2>
43<P>
442008/05/23 Initial version.
45</P>
46<hr><p>CONFIDENTIAL</p></body>
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