331 lines
19 KiB
HTML
331 lines
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<a href="#func-members">Functions</a> </div>
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<div class="title">Message Digest generation functions<div class="ingroups"><a class="el" href="group___s_t_m32_f4xx___std_periph___driver.html">STM32F4xx_StdPeriph_Driver</a> » <a class="el" href="group___h_a_s_h.html">HASH</a> » <a class="el" href="group___h_a_s_h___private___functions.html">HASH_Private_Functions</a></div></div> </div>
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<p>Message Digest generation functions.
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<a href="#details">More...</a></p>
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<div class="dynheader">
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Collaboration diagram for Message Digest generation functions:</div>
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<div class="dyncontent">
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<center><table><tr><td><img src="group___h_a_s_h___group2.png" border="0" alt="" usemap="#group______h__a__s__h______group2"/>
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<map name="group______h__a__s__h______group2" id="group______h__a__s__h______group2">
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</td></tr></table></center>
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<table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
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Functions</h2></td></tr>
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<tr class="memitem:gac4d1fa51c9240ad0287b371564b5d2a6"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___h_a_s_h___group2.html#gac4d1fa51c9240ad0287b371564b5d2a6">HASH_SetLastWordValidBitsNbr</a> (uint16_t ValidNumber)</td></tr>
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<tr class="memdesc:gac4d1fa51c9240ad0287b371564b5d2a6"><td class="mdescLeft"> </td><td class="mdescRight">Configure the Number of valid bits in last word of the message. <a href="#gac4d1fa51c9240ad0287b371564b5d2a6">More...</a><br /></td></tr>
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<tr class="separator:gac4d1fa51c9240ad0287b371564b5d2a6"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga9c4c0cebdeb1ce2631dd2eeab82107ef"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___h_a_s_h___group2.html#ga9c4c0cebdeb1ce2631dd2eeab82107ef">HASH_DataIn</a> (uint32_t Data)</td></tr>
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<tr class="memdesc:ga9c4c0cebdeb1ce2631dd2eeab82107ef"><td class="mdescLeft"> </td><td class="mdescRight">Writes data in the Data Input FIFO. <a href="#ga9c4c0cebdeb1ce2631dd2eeab82107ef">More...</a><br /></td></tr>
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<tr class="separator:ga9c4c0cebdeb1ce2631dd2eeab82107ef"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga37bec5e637a57124f3179185d03537ab"><td class="memItemLeft" align="right" valign="top">uint8_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group___h_a_s_h___group2.html#ga37bec5e637a57124f3179185d03537ab">HASH_GetInFIFOWordsNbr</a> (void)</td></tr>
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<tr class="memdesc:ga37bec5e637a57124f3179185d03537ab"><td class="mdescLeft"> </td><td class="mdescRight">Returns the number of words already pushed into the IN FIFO. <a href="#ga37bec5e637a57124f3179185d03537ab">More...</a><br /></td></tr>
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<tr class="separator:ga37bec5e637a57124f3179185d03537ab"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga23018d770837d6ab9f46941f105cc017"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___h_a_s_h___group2.html#ga23018d770837d6ab9f46941f105cc017">HASH_GetDigest</a> (<a class="el" href="struct_h_a_s_h___msg_digest.html">HASH_MsgDigest</a> *HASH_MessageDigest)</td></tr>
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<tr class="memdesc:ga23018d770837d6ab9f46941f105cc017"><td class="mdescLeft"> </td><td class="mdescRight">Provides the message digest result. <a href="#ga23018d770837d6ab9f46941f105cc017">More...</a><br /></td></tr>
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<tr class="separator:ga23018d770837d6ab9f46941f105cc017"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga84ac2b64179fd37b75c4d5f665126e93"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___h_a_s_h___group2.html#ga84ac2b64179fd37b75c4d5f665126e93">HASH_StartDigest</a> (void)</td></tr>
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<tr class="memdesc:ga84ac2b64179fd37b75c4d5f665126e93"><td class="mdescLeft"> </td><td class="mdescRight">Starts the message padding and calculation of the final message. <a href="#ga84ac2b64179fd37b75c4d5f665126e93">More...</a><br /></td></tr>
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<tr class="separator:ga84ac2b64179fd37b75c4d5f665126e93"><td class="memSeparator" colspan="2"> </td></tr>
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</table>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
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<p>Message Digest generation functions. </p>
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<pre class="fragment"> ===============================================================================
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##### Message Digest generation functions #####
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===============================================================================
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[..] This section provides functions allowing the generation of message digest:
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(+) Push data in the IN FIFO : using HASH_DataIn()
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(+) Get the number of words set in IN FIFO, use HASH_GetInFIFOWordsNbr()
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(+) set the last word valid bits number using HASH_SetLastWordValidBitsNbr()
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(+) start digest calculation : using HASH_StartDigest()
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(+) Get the Digest message : using HASH_GetDigest()</pre> <h2 class="groupheader">Function Documentation</h2>
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<a class="anchor" id="ga9c4c0cebdeb1ce2631dd2eeab82107ef"></a>
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<td class="memname">void HASH_DataIn </td>
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<td>(</td>
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<td class="paramtype">uint32_t </td>
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<td class="paramname"><em>Data</em></td><td>)</td>
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<td></td>
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<p>Writes data in the Data Input FIFO. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">Data</td><td>new data of the message to be processed. </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="retval"><dt>Return values</dt><dd>
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<table class="retval">
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<tr><td class="paramname">None</td><td></td></tr>
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</table>
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</dd>
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</dl>
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<area shape="rect" id="node2" href="group___h_a_s_h___group7.html#ga82a155884e458cc6b7c1a4565c1ac8e9" title="Compute the HASH MD5 digest. " alt="" coords="161,5,253,32"/><area shape="rect" id="node3" href="group___h_a_s_h___group7.html#gac61733e7aa66bdd2f21be4b34165b5be" title="Compute the HMAC MD5 digest. " alt="" coords="159,56,254,83"/><area shape="rect" id="node4" href="group___h_a_s_h___group6.html#ga2728c02c36de6d800e1ede56ea7789cb" title="Compute the HASH SHA1 digest. " alt="" coords="157,107,256,133"/><area shape="rect" id="node5" href="group___h_a_s_h___group6.html#ga2e38e900ca7838c1cea17cef19953a5e" title="Compute the HMAC SHA1 digest. " alt="" coords="156,157,257,184"/></map>
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<td class="memname">void HASH_GetDigest </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="struct_h_a_s_h___msg_digest.html">HASH_MsgDigest</a> * </td>
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<td class="paramname"><em>HASH_MessageDigest</em></td><td>)</td>
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<td></td>
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<p>Provides the message digest result. </p>
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<dl class="section note"><dt>Note</dt><dd>In MD5 mode, Data[7] to Data[4] filed of <a class="el" href="struct_h_a_s_h___msg_digest.html" title="HASH message digest result structure definition. ">HASH_MsgDigest</a> structure is not used and is read as zero. In SHA-1 mode, Data[7] to Data[5] filed of <a class="el" href="struct_h_a_s_h___msg_digest.html" title="HASH message digest result structure definition. ">HASH_MsgDigest</a> structure is not used and is read as zero. In SHA-224 mode, Data[7] filed of <a class="el" href="struct_h_a_s_h___msg_digest.html" title="HASH message digest result structure definition. ">HASH_MsgDigest</a> structure is not used and is read as zero. </dd></dl>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">HASH_MessageDigest</td><td>pointer to a <a class="el" href="struct_h_a_s_h___msg_digest.html" title="HASH message digest result structure definition. ">HASH_MsgDigest</a> structure which will hold the message digest result </td></tr>
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</dd>
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</dl>
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<dl class="retval"><dt>Return values</dt><dd>
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<table class="retval">
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<tr><td class="paramname">None</td><td></td></tr>
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</table>
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</dd>
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<td class="memname">uint8_t HASH_GetInFIFOWordsNbr </td>
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<td>(</td>
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<td class="paramtype">void </td>
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<td class="paramname"></td><td>)</td>
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<td></td>
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</div><div class="memdoc">
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<p>Returns the number of words already pushed into the IN FIFO. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">None</td><td></td></tr>
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</table>
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</dd>
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</dl>
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<dl class="retval"><dt>Return values</dt><dd>
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<table class="retval">
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<tr><td class="paramname">The</td><td>value of words already pushed into the IN FIFO. </td></tr>
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</table>
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</dd>
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</dl>
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<td class="memname">void HASH_SetLastWordValidBitsNbr </td>
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<td>(</td>
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<td class="paramtype">uint16_t </td>
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<td class="paramname"><em>ValidNumber</em></td><td>)</td>
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<td></td>
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</div><div class="memdoc">
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<p>Configure the Number of valid bits in last word of the message. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">ValidNumber</td><td>Number of valid bits in last word of the message. This parameter must be a number between 0 and 0x1F.<ul>
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<li>0x00: All 32 bits of the last data written are valid</li>
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<li>0x01: Only bit [0] of the last data written is valid</li>
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<li>0x02: Only bits[1:0] of the last data written are valid</li>
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<li>0x03: Only bits[2:0] of the last data written are valid</li>
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<li>...</li>
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<li>0x1F: Only bits[30:0] of the last data written are valid </li>
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</ul>
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</td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section note"><dt>Note</dt><dd>The Number of valid bits must be set before to start the message digest competition (in Hash and HMAC) and key treatment(in HMAC). </dd></dl>
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<dl class="retval"><dt>Return values</dt><dd>
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<table class="retval">
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<tr><td class="paramname">None</td><td></td></tr>
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<tr>
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<td class="memname">void HASH_StartDigest </td>
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<td>(</td>
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<td class="paramtype">void </td>
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<td class="paramname"></td><td>)</td>
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<td></td>
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</tr>
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</table>
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</div><div class="memdoc">
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<p>Starts the message padding and calculation of the final message. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">None</td><td></td></tr>
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</table>
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</dd>
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</dl>
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<dl class="retval"><dt>Return values</dt><dd>
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<table class="retval">
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<tr><td class="paramname">None</td><td></td></tr>
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</table>
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</dd>
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</dl>
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<p><div class="dynheader">
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Here is the caller graph for this function:</div>
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<div class="dyncontent">
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<div class="center"><img src="group___h_a_s_h___group2_ga84ac2b64179fd37b75c4d5f665126e93_icgraph.png" border="0" usemap="#group___h_a_s_h___group2_ga84ac2b64179fd37b75c4d5f665126e93_icgraph" alt=""/></div>
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<area shape="rect" id="node2" href="group___h_a_s_h___group7.html#ga82a155884e458cc6b7c1a4565c1ac8e9" title="Compute the HASH MD5 digest. " alt="" coords="189,5,281,32"/><area shape="rect" id="node3" href="group___h_a_s_h___group7.html#gac61733e7aa66bdd2f21be4b34165b5be" title="Compute the HMAC MD5 digest. " alt="" coords="187,56,282,83"/><area shape="rect" id="node4" href="group___h_a_s_h___group6.html#ga2728c02c36de6d800e1ede56ea7789cb" title="Compute the HASH SHA1 digest. " alt="" coords="185,107,284,133"/><area shape="rect" id="node5" href="group___h_a_s_h___group6.html#ga2e38e900ca7838c1cea17cef19953a5e" title="Compute the HMAC SHA1 digest. " alt="" coords="184,157,285,184"/></map>
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</p>
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