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14<h1 align="left">CRYPTO_RC4Init <IMG src="../../image/NTR.gif" width="23" height="12" border="0" align="middle"><IMG src="../../image/TWL.gif" width="23" height="12" border="0" align="middle"></h1>
15<h2>Syntax</h2>
16
17<dl>
18  <dd>
19  <pre><CODE>#include &lt;nitro/crypto.h&gt;
20
21void CRYPTO_RC4Init(<a href="CRYPTORC4Context.html">CRYPTORC4Context</a>* context, const void* key, u32 key_len);
22</CODE></pre>
23</dd>
24</dl>
25
26<h2>Arguments</h2>
27<TABLE border="1" width="100%" class="arguments">
28  <TBODY>
29    <TR>
30<TH>context</TH>
31<TD>Context structure where the RC4 key information, etc., is kept</TD>
32    </TR>
33    <TR>
34<TH>key</TH>
35<TD>Pointer to the byte sequence for the encryption/decryption key used with the RC4 algorithm.</TD>
36    </TR>
37    <TR>
38<TH>key_len</TH>
39<TD>Length of the key specified by <SPAN class="argument">key</SPAN>. The length of the key must be 16 bytes or less; longer lengths are truncated to 16 bytes.</TD>
40    </TR>
41  </TBODY>
42</TABLE>
43
44<h2>Return Values</h2>
45<p>
46None.
47</p>
48
49<H2>Description</H2>
50<P>
51Initializes the RC4 algorithm encryption structures and sets the encryption/decryption key.
52</P>
53<P>
54This function is called internally when performing operations with CRYPTO_RC4, so it does not need to be called.
55</P>
56
57<h2>See Also</h2>
58<p><A href="CRYPTO_RC4Encrypt.html"><CODE>CRYPTO_RC4Encrypt</CODE></A><BR> <A href="CRYPTO_RC4.html"><CODE>CRYPTO_RC4</CODE></A><BR> <A href="CRYPTO_RC4FastInit.html"><CODE>CRYPTO_RC4_FastInit</CODE></A></p>
59
60<H2>Revision History</H2>
61<P>
622008/02/25 Initial version.
63</P>
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