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13<h1 align="left">NETSHA256Init</h1>
14<h2>Syntax</h2>
15
16<dl>
17  <dd>
18  <PRE><CODE>#include &lt;revolution/net.h&gt;
19
20void NETSHA256Init( <A href="NETSHA256Context.html">NETSHA256Context</A> *context );
21</CODE></PRE>
22  </dd>
23</dl><h2>Arguments</h2>
24
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 to initialize. This structure is used for SHA-256 generation.</TD>
29    </TR>
30  </table>
31<h2>Return Values</h2>
32<p>None.</p>
33<H2>Description</H2>
34<P>This function initializes a context structure of type <A href="NETSHA256Context.html"><CODE>NETSHA256Context</CODE></A> to use for the calculation of SHA-256. Make sure that this function is called before using the <A href="NETSHA256Update.html"><CODE>NETSHA256Update</CODE></A> or <A href="NETSHA256GetDigest.html"><CODE>NETSHA256GetDigest</CODE></A> function.<BR> You can re-apply this function to a context structure that is already initialized. In this case, it will return the context structure to its initial state.</p>
35<p>
36For details, see the &quot;SHA-256&quot; section of the <a href="hash_overview.html">hash algorithm</a>.
37</P>
38<h2>See Also</h2>
39<P><CODE><A href="NETSHA256Update.html">NETSHA256Update</A><BR><A href="NETSHA256GetDigest.html">NETSHA256GetDigest</A></CODE></P>
40<H2>Revision History</H2>
41<P>
422008/05/07 Initial version.<BR>
43</P>
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