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477 lines
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<a href="#nested-classes">Data Structures</a> |
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<a href="#typedef-members">Typedefs</a> |
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<a href="#func-members">Functions</a> </div>
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<div class="headertitle">
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<div class="title">DCP HASH driver<div class="ingroups"><a class="el" href="a00019.html">DCP: Data Co-Processor</a></div></div> </div>
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<a name="details" id="details"></a><h2 class="groupheader">Overview</h2>
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<p>This section describes the programming interface of the DCP HASH driver. </p>
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<table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="nested-classes"></a>
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Data Structures</h2></td></tr>
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<tr class="memitem:a00332"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="a00020.html#a00332">_dcp_hash_ctx_t</a></td></tr>
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<tr class="memdesc:a00332"><td class="mdescLeft"> </td><td class="mdescRight">Storage type used to save hash context. <a href="a00020.html#a00332">More...</a><br/></td></tr>
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<tr class="separator:a00332"><td class="memSeparator" colspan="2"> </td></tr>
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</table><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="define-members"></a>
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Macros</h2></td></tr>
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<tr class="memitem:gaaaf05095de831681825b475fca16ca14"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="a00020.html#gaaaf05095de831681825b475fca16ca14">DCP_SHA_BLOCK_SIZE</a>   128U</td></tr>
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<tr class="memdesc:gaaaf05095de831681825b475fca16ca14"><td class="mdescLeft"> </td><td class="mdescRight">DCP HASH Context size. <a href="#gaaaf05095de831681825b475fca16ca14">More...</a><br/></td></tr>
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<tr class="separator:gaaaf05095de831681825b475fca16ca14"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga6c48bdbcc2a96ef138e5de5393fe5965"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ga6c48bdbcc2a96ef138e5de5393fe5965"></a>
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#define </td><td class="memItemRight" valign="bottom"><a class="el" href="a00020.html#ga6c48bdbcc2a96ef138e5de5393fe5965">DCP_HASH_BLOCK_SIZE</a>   <a class="el" href="a00020.html#gaaaf05095de831681825b475fca16ca14">DCP_SHA_BLOCK_SIZE</a></td></tr>
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<tr class="memdesc:ga6c48bdbcc2a96ef138e5de5393fe5965"><td class="mdescLeft"> </td><td class="mdescRight">DCP hash block size. <br/></td></tr>
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<tr class="separator:ga6c48bdbcc2a96ef138e5de5393fe5965"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gaa5741738e5700607fd0ab7da6228bba2"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="a00020.html#gaa5741738e5700607fd0ab7da6228bba2">DCP_HASH_CTX_SIZE</a>   64</td></tr>
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<tr class="memdesc:gaa5741738e5700607fd0ab7da6228bba2"><td class="mdescLeft"> </td><td class="mdescRight">DCP HASH Context size. <a href="#gaa5741738e5700607fd0ab7da6228bba2">More...</a><br/></td></tr>
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<tr class="separator:gaa5741738e5700607fd0ab7da6228bba2"><td class="memSeparator" colspan="2"> </td></tr>
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</table><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="typedef-members"></a>
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Typedefs</h2></td></tr>
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<tr class="memitem:ga1e4eb47c999a6c409f76b9017f2ee853"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ga1e4eb47c999a6c409f76b9017f2ee853"></a>
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typedef enum <a class="el" href="a00020.html#gabd52d43c270ce2e56c9e868b57cb92a5">_dcp_hash_algo_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00020.html#ga1e4eb47c999a6c409f76b9017f2ee853">dcp_hash_algo_t</a></td></tr>
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<tr class="memdesc:ga1e4eb47c999a6c409f76b9017f2ee853"><td class="mdescLeft"> </td><td class="mdescRight">Supported cryptographic block cipher functions for HASH creation. <br/></td></tr>
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<tr class="separator:ga1e4eb47c999a6c409f76b9017f2ee853"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gae06d811ead112ae70d6c27e5f306268d"><td class="memItemLeft" align="right" valign="top">typedef struct <a class="el" href="a00020.html#a00332">_dcp_hash_ctx_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00020.html#gae06d811ead112ae70d6c27e5f306268d">dcp_hash_ctx_t</a></td></tr>
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<tr class="memdesc:gae06d811ead112ae70d6c27e5f306268d"><td class="mdescLeft"> </td><td class="mdescRight">Storage type used to save hash context. <a href="#gae06d811ead112ae70d6c27e5f306268d">More...</a><br/></td></tr>
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<tr class="separator:gae06d811ead112ae70d6c27e5f306268d"><td class="memSeparator" colspan="2"> </td></tr>
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</table><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="enum-members"></a>
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Enumerations</h2></td></tr>
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<tr class="memitem:gabd52d43c270ce2e56c9e868b57cb92a5"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="a00020.html#gabd52d43c270ce2e56c9e868b57cb92a5">_dcp_hash_algo_t</a> { <br/>
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  <a class="el" href="a00020.html#ggabd52d43c270ce2e56c9e868b57cb92a5a789e6da5cc19aa6d5eae061fbdd918d9">kDCP_Sha1</a>,
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<br/>
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  <a class="el" href="a00020.html#ggabd52d43c270ce2e56c9e868b57cb92a5a8e1e38a094ad5bb89f323f29f66eb4b9">kDCP_Sha256</a>,
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<br/>
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  <a class="el" href="a00020.html#ggabd52d43c270ce2e56c9e868b57cb92a5a1747e58c83642f2104c68049a44ce69e">kDCP_Crc32</a>
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<br/>
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}</td></tr>
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<tr class="memdesc:gabd52d43c270ce2e56c9e868b57cb92a5"><td class="mdescLeft"> </td><td class="mdescRight">Supported cryptographic block cipher functions for HASH creation. <a href="a00020.html#gabd52d43c270ce2e56c9e868b57cb92a5">More...</a><br/></td></tr>
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<tr class="separator:gabd52d43c270ce2e56c9e868b57cb92a5"><td class="memSeparator" colspan="2"> </td></tr>
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</table><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:gad343ac658a1d1118abb53a91b87f43cf"><td class="memItemLeft" align="right" valign="top"><a class="el" href="a00260.html#gaaabdaf7ee58ca7269bd4bf24efcde092">status_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00020.html#gad343ac658a1d1118abb53a91b87f43cf">DCP_HASH_Init</a> (DCP_Type *base, <a class="el" href="a00019.html#ga3a72807e47a0e99f3827c8ca5b299484">dcp_handle_t</a> *handle, <a class="el" href="a00020.html#gae06d811ead112ae70d6c27e5f306268d">dcp_hash_ctx_t</a> *ctx, <a class="el" href="a00020.html#ga1e4eb47c999a6c409f76b9017f2ee853">dcp_hash_algo_t</a> algo)</td></tr>
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<tr class="memdesc:gad343ac658a1d1118abb53a91b87f43cf"><td class="mdescLeft"> </td><td class="mdescRight">Initialize HASH context. <a href="#gad343ac658a1d1118abb53a91b87f43cf">More...</a><br/></td></tr>
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<tr class="separator:gad343ac658a1d1118abb53a91b87f43cf"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga65d17b5c879f548b0c725d7be43d6415"><td class="memItemLeft" align="right" valign="top"><a class="el" href="a00260.html#gaaabdaf7ee58ca7269bd4bf24efcde092">status_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00020.html#ga65d17b5c879f548b0c725d7be43d6415">DCP_HASH_Update</a> (DCP_Type *base, <a class="el" href="a00020.html#gae06d811ead112ae70d6c27e5f306268d">dcp_hash_ctx_t</a> *ctx, const uint8_t *input, size_t inputSize)</td></tr>
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<tr class="memdesc:ga65d17b5c879f548b0c725d7be43d6415"><td class="mdescLeft"> </td><td class="mdescRight">Add data to current HASH. <a href="#ga65d17b5c879f548b0c725d7be43d6415">More...</a><br/></td></tr>
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<tr class="separator:ga65d17b5c879f548b0c725d7be43d6415"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga7a3ed9d163c10e27d6d30f2ee9c7093f"><td class="memItemLeft" align="right" valign="top"><a class="el" href="a00260.html#gaaabdaf7ee58ca7269bd4bf24efcde092">status_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00020.html#ga7a3ed9d163c10e27d6d30f2ee9c7093f">DCP_HASH_Finish</a> (DCP_Type *base, <a class="el" href="a00020.html#gae06d811ead112ae70d6c27e5f306268d">dcp_hash_ctx_t</a> *ctx, uint8_t *output, size_t *outputSize)</td></tr>
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<tr class="memdesc:ga7a3ed9d163c10e27d6d30f2ee9c7093f"><td class="mdescLeft"> </td><td class="mdescRight">Finalize hashing. <a href="#ga7a3ed9d163c10e27d6d30f2ee9c7093f">More...</a><br/></td></tr>
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<tr class="separator:ga7a3ed9d163c10e27d6d30f2ee9c7093f"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga4f07a7b717483d2b760cd772bc1f6df7"><td class="memItemLeft" align="right" valign="top"><a class="el" href="a00260.html#gaaabdaf7ee58ca7269bd4bf24efcde092">status_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00020.html#ga4f07a7b717483d2b760cd772bc1f6df7">DCP_HASH</a> (DCP_Type *base, <a class="el" href="a00019.html#ga3a72807e47a0e99f3827c8ca5b299484">dcp_handle_t</a> *handle, <a class="el" href="a00020.html#ga1e4eb47c999a6c409f76b9017f2ee853">dcp_hash_algo_t</a> algo, const uint8_t *input, size_t inputSize, uint8_t *output, size_t *outputSize)</td></tr>
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<tr class="memdesc:ga4f07a7b717483d2b760cd772bc1f6df7"><td class="mdescLeft"> </td><td class="mdescRight">Create HASH on given data. <a href="#ga4f07a7b717483d2b760cd772bc1f6df7">More...</a><br/></td></tr>
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<tr class="separator:ga4f07a7b717483d2b760cd772bc1f6df7"><td class="memSeparator" colspan="2"> </td></tr>
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</table>
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<hr/><h2 class="groupheader">Data Structure Documentation</h2>
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<a name="a00332" id="a00332"></a>
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<div class="memitem">
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<td class="memname">struct _dcp_hash_ctx_t</td>
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<h2 class="groupheader">Macro Definition Documentation</h2>
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<td class="memname">#define DCP_SHA_BLOCK_SIZE   128U</td>
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</div><div class="memdoc">
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<p>internal buffer block size </p>
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<a class="anchor" id="gaa5741738e5700607fd0ab7da6228bba2"></a>
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<td class="memname">#define DCP_HASH_CTX_SIZE   64</td>
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<h2 class="groupheader">Typedef Documentation</h2>
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<a class="anchor" id="gae06d811ead112ae70d6c27e5f306268d"></a>
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<td class="memname">typedef struct <a class="el" href="a00020.html#a00332">_dcp_hash_ctx_t</a> <a class="el" href="a00020.html#gae06d811ead112ae70d6c27e5f306268d">dcp_hash_ctx_t</a></td>
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<h2 class="groupheader">Enumeration Type Documentation</h2>
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<a class="anchor" id="gabd52d43c270ce2e56c9e868b57cb92a5"></a>
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<td class="memname">enum <a class="el" href="a00020.html#gabd52d43c270ce2e56c9e868b57cb92a5">_dcp_hash_algo_t</a></td>
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<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><em><a class="anchor" id="ggabd52d43c270ce2e56c9e868b57cb92a5a789e6da5cc19aa6d5eae061fbdd918d9"></a>kDCP_Sha1</em> </td><td class="fielddoc">
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<p>SHA_1. </p>
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</td></tr>
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<tr><td class="fieldname"><em><a class="anchor" id="ggabd52d43c270ce2e56c9e868b57cb92a5a8e1e38a094ad5bb89f323f29f66eb4b9"></a>kDCP_Sha256</em> </td><td class="fielddoc">
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<p>SHA_256. </p>
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</td></tr>
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<tr><td class="fieldname"><em><a class="anchor" id="ggabd52d43c270ce2e56c9e868b57cb92a5a1747e58c83642f2104c68049a44ce69e"></a>kDCP_Crc32</em> </td><td class="fielddoc">
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<p>CRC_32. </p>
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</td></tr>
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</table>
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</div>
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</div>
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<h2 class="groupheader">Function Documentation</h2>
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<a class="anchor" id="gad343ac658a1d1118abb53a91b87f43cf"></a>
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<td class="memname"><a class="el" href="a00260.html#gaaabdaf7ee58ca7269bd4bf24efcde092">status_t</a> DCP_HASH_Init </td>
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<td>(</td>
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<td class="paramtype">DCP_Type * </td>
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<td class="paramname"><em>base</em>, </td>
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</tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="a00019.html#ga3a72807e47a0e99f3827c8ca5b299484">dcp_handle_t</a> * </td>
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<td class="paramname"><em>handle</em>, </td>
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</tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="a00020.html#gae06d811ead112ae70d6c27e5f306268d">dcp_hash_ctx_t</a> * </td>
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<td class="paramname"><em>ctx</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="a00020.html#ga1e4eb47c999a6c409f76b9017f2ee853">dcp_hash_algo_t</a> </td>
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<td class="paramname"><em>algo</em> </td>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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</div><div class="memdoc">
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<p>This function initializes the HASH.</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="paramdir"></td><td class="paramname">base</td><td>DCP peripheral base address </td></tr>
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<tr><td class="paramdir"></td><td class="paramname">handle</td><td>Specifies the DCP channel used for hashing. </td></tr>
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<tr><td class="paramdir">[out]</td><td class="paramname">ctx</td><td>Output hash context </td></tr>
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<tr><td class="paramdir"></td><td class="paramname">algo</td><td>Underlaying algorithm to use for hash computation. </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>Status of initialization </dd></dl>
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</div>
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</div>
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<a class="anchor" id="ga65d17b5c879f548b0c725d7be43d6415"></a>
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<td class="memname"><a class="el" href="a00260.html#gaaabdaf7ee58ca7269bd4bf24efcde092">status_t</a> DCP_HASH_Update </td>
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<td>(</td>
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<td class="paramtype">DCP_Type * </td>
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<td class="paramname"><em>base</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="a00020.html#gae06d811ead112ae70d6c27e5f306268d">dcp_hash_ctx_t</a> * </td>
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<td class="paramname"><em>ctx</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">const uint8_t * </td>
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<td class="paramname"><em>input</em>, </td>
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</tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">size_t </td>
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<td class="paramname"><em>inputSize</em> </td>
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</tr>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><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>Add data to current HASH. This can be called repeatedly with an arbitrary amount of data to be hashed. The functions blocks. If it returns kStatus_Success, the running hash has been updated (DCP has processed the input data), so the memory at the input pointer can be released back to system. The DCP context buffer is updated with the running hash and with all necessary information to support possible context switch.</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="paramdir"></td><td class="paramname">base</td><td>DCP peripheral base address </td></tr>
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<tr><td class="paramdir">[in,out]</td><td class="paramname">ctx</td><td>HASH context </td></tr>
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<tr><td class="paramdir"></td><td class="paramname">input</td><td>Input data </td></tr>
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<tr><td class="paramdir"></td><td class="paramname">inputSize</td><td>Size of input data in bytes </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>Status of the hash update operation </dd></dl>
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<td class="memname"><a class="el" href="a00260.html#gaaabdaf7ee58ca7269bd4bf24efcde092">status_t</a> DCP_HASH_Finish </td>
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<td>(</td>
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<td class="paramtype">DCP_Type * </td>
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<td class="paramname"><em>base</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="a00020.html#gae06d811ead112ae70d6c27e5f306268d">dcp_hash_ctx_t</a> * </td>
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<td class="paramname"><em>ctx</em>, </td>
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</tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">uint8_t * </td>
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<td class="paramname"><em>output</em>, </td>
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</tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">size_t * </td>
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<td class="paramname"><em>outputSize</em> </td>
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</tr>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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</div><div class="memdoc">
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<p>Outputs the final hash (computed by <a class="el" href="a00020.html#ga65d17b5c879f548b0c725d7be43d6415" title="Add data to current HASH. ">DCP_HASH_Update()</a>) and erases the context.</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="paramdir"></td><td class="paramname">base</td><td>DCP peripheral base address </td></tr>
|
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<tr><td class="paramdir">[in,out]</td><td class="paramname">ctx</td><td>Input hash context </td></tr>
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<tr><td class="paramdir">[out]</td><td class="paramname">output</td><td>Output hash data </td></tr>
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<tr><td class="paramdir">[in,out]</td><td class="paramname">outputSize</td><td>Optional parameter (can be passed as NULL). On function entry, it specifies the size of output[] buffer. On function return, it stores the number of updated output bytes. </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>Status of the hash finish operation </dd></dl>
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</div>
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</div>
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<a class="anchor" id="ga4f07a7b717483d2b760cd772bc1f6df7"></a>
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<td class="memname"><a class="el" href="a00260.html#gaaabdaf7ee58ca7269bd4bf24efcde092">status_t</a> DCP_HASH </td>
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<td>(</td>
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<td class="paramtype">DCP_Type * </td>
|
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<td class="paramname"><em>base</em>, </td>
|
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="a00019.html#ga3a72807e47a0e99f3827c8ca5b299484">dcp_handle_t</a> * </td>
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<td class="paramname"><em>handle</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="a00020.html#ga1e4eb47c999a6c409f76b9017f2ee853">dcp_hash_algo_t</a> </td>
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<td class="paramname"><em>algo</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">const uint8_t * </td>
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<td class="paramname"><em>input</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">size_t </td>
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<td class="paramname"><em>inputSize</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">uint8_t * </td>
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<td class="paramname"><em>output</em>, </td>
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</tr>
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<tr>
|
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<td class="paramkey"></td>
|
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<td></td>
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<td class="paramtype">size_t * </td>
|
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<td class="paramname"><em>outputSize</em> </td>
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</tr>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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</div><div class="memdoc">
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<p>Perform the full SHA or CRC32 in one function call. The function is blocking.</p>
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<dl class="params"><dt>Parameters</dt><dd>
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|
<table class="params">
|
|
<tr><td class="paramdir"></td><td class="paramname">base</td><td>DCP peripheral base address </td></tr>
|
|
<tr><td class="paramdir"></td><td class="paramname">handle</td><td>Handle used for the request. </td></tr>
|
|
<tr><td class="paramdir"></td><td class="paramname">algo</td><td>Underlaying algorithm to use for hash computation. </td></tr>
|
|
<tr><td class="paramdir"></td><td class="paramname">input</td><td>Input data </td></tr>
|
|
<tr><td class="paramdir"></td><td class="paramname">inputSize</td><td>Size of input data in bytes </td></tr>
|
|
<tr><td class="paramdir">[out]</td><td class="paramname">output</td><td>Output hash data </td></tr>
|
|
<tr><td class="paramdir">[out]</td><td class="paramname">outputSize</td><td>Output parameter storing the size of the output hash in bytes </td></tr>
|
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</table>
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</dd>
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</dl>
|
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<dl class="section return"><dt>Returns</dt><dd>Status of the one call hash operation. </dd></dl>
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</div>
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</div>
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