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  8. <title>tpm2-tss: The ESAPI function for the TPM2_Certify command.</title>
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    29. 

  29.    &#160;<span id="projectnumber">3.2.0</span>
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  30.    </div>
    31. 

  31.    <div id="projectbrief">TPM Software stack 2.0 TCG spec compliant implementation</div>
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  63.   <div class="summary">
    64. 

  64. <a href="#func-members">Functions</a>  </div>
    65. 

  65.   <div class="headertitle">
    66. 

  66. <div class="title">The ESAPI function for the TPM2_Certify command.<div class="ingroups"><a class="el" href="group__esys.html">Enhanced System API</a> &raquo; <a class="el" href="group__esys__tpm.html">Esys TPM Commands</a></div></div>  </div>
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  68. <div class="contents">
    69. 

  69. <table class="memberdecls">
    70. 

  70. <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
    71. 

  71. Functions</h2></td></tr>
    72. 

  72. <tr class="memitem:ga4b0df185f05f30b77726a6f6866365df"><td class="memItemLeft" align="right" valign="top">TSS2_RC&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group___esys___certify.html#ga4b0df185f05f30b77726a6f6866365df">Esys_Certify_Async</a> (<a class="el" href="group__esys__int.html#struct_e_s_y_s___c_o_n_t_e_x_t">ESYS_CONTEXT</a> *esysContext, <a class="el" href="group___e_s_y_s___t_r.html#ga65d10db3b0b31fcd709e692f1545d30f">ESYS_TR</a> objectHandle, <a class="el" href="group___e_s_y_s___t_r.html#ga65d10db3b0b31fcd709e692f1545d30f">ESYS_TR</a> signHandle, <a class="el" href="group___e_s_y_s___t_r.html#ga65d10db3b0b31fcd709e692f1545d30f">ESYS_TR</a> shandle1, <a class="el" href="group___e_s_y_s___t_r.html#ga65d10db3b0b31fcd709e692f1545d30f">ESYS_TR</a> shandle2, <a class="el" href="group___e_s_y_s___t_r.html#ga65d10db3b0b31fcd709e692f1545d30f">ESYS_TR</a> shandle3, const TPM2B_DATA *qualifyingData, const TPMT_SIG_SCHEME *inScheme)</td></tr>
    73. 

  73. <tr class="separator:ga4b0df185f05f30b77726a6f6866365df"><td class="memSeparator" colspan="2">&#160;</td></tr>
    74. 

  74. <tr class="memitem:ga1f744c29f4ecf162c19edfe0b627297d"><td class="memItemLeft" align="right" valign="top">TSS2_RC&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group___esys___certify.html#ga1f744c29f4ecf162c19edfe0b627297d">Esys_Certify</a> (<a class="el" href="group__esys__int.html#struct_e_s_y_s___c_o_n_t_e_x_t">ESYS_CONTEXT</a> *esysContext, <a class="el" href="group___e_s_y_s___t_r.html#ga65d10db3b0b31fcd709e692f1545d30f">ESYS_TR</a> objectHandle, <a class="el" href="group___e_s_y_s___t_r.html#ga65d10db3b0b31fcd709e692f1545d30f">ESYS_TR</a> signHandle, <a class="el" href="group___e_s_y_s___t_r.html#ga65d10db3b0b31fcd709e692f1545d30f">ESYS_TR</a> shandle1, <a class="el" href="group___e_s_y_s___t_r.html#ga65d10db3b0b31fcd709e692f1545d30f">ESYS_TR</a> shandle2, <a class="el" href="group___e_s_y_s___t_r.html#ga65d10db3b0b31fcd709e692f1545d30f">ESYS_TR</a> shandle3, const TPM2B_DATA *qualifyingData, const TPMT_SIG_SCHEME *inScheme, TPM2B_ATTEST **certifyInfo, TPMT_SIGNATURE **signature)</td></tr>
    75. 

  75. <tr class="separator:ga1f744c29f4ecf162c19edfe0b627297d"><td class="memSeparator" colspan="2">&#160;</td></tr>
    76. 

  76. <tr class="memitem:gac950cad63671ecddd53223ecb2952775"><td class="memItemLeft" align="right" valign="top">TSS2_RC&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group___esys___certify.html#gac950cad63671ecddd53223ecb2952775">Esys_Certify_Finish</a> (<a class="el" href="group__esys__int.html#struct_e_s_y_s___c_o_n_t_e_x_t">ESYS_CONTEXT</a> *esysContext, TPM2B_ATTEST **certifyInfo, TPMT_SIGNATURE **signature)</td></tr>
    77. 

  77. <tr class="separator:gac950cad63671ecddd53223ecb2952775"><td class="memSeparator" colspan="2">&#160;</td></tr>
    78. 

  78. </table>
    79. 

  79. <a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
    80. 

  80. <p>ESAPI function to invoke the TPM2_Certify command either as a one-call or in an asynchronous manner. </p>
    81. 

  81. <h2 class="groupheader">Function Documentation</h2>
    82. 

  82. <a id="ga1f744c29f4ecf162c19edfe0b627297d"></a>
    83. 

  83. <h2 class="memtitle"><span class="permalink"><a href="#ga1f744c29f4ecf162c19edfe0b627297d">&#9670;&nbsp;</a></span>Esys_Certify()</h2>
    84. 

  84. 

  85. <div class="memitem">
    86. 

  86. <div class="memproto">
    87. 

  87.       <table class="memname">
    88. 

  88.         <tr>
    89. 

  89.           <td class="memname">TSS2_RC Esys_Certify </td>
    90. 

  90.           <td>(</td>
    91. 

  91.           <td class="paramtype"><a class="el" href="group__esys__int.html#struct_e_s_y_s___c_o_n_t_e_x_t">ESYS_CONTEXT</a> *&#160;</td>
    92. 

  92.           <td class="paramname"><em>esysContext</em>, </td>
    93. 

  93.         </tr>
    94. 

  94.         <tr>
    95. 

  95.           <td class="paramkey"></td>
    96. 

  96.           <td></td>
    97. 

  97.           <td class="paramtype"><a class="el" href="group___e_s_y_s___t_r.html#ga65d10db3b0b31fcd709e692f1545d30f">ESYS_TR</a>&#160;</td>
    98. 

  98.           <td class="paramname"><em>objectHandle</em>, </td>
    99. 

  99.         </tr>
    100. 

  100.         <tr>
    101. 

  101.           <td class="paramkey"></td>
    102. 

  102.           <td></td>
    103. 

  103.           <td class="paramtype"><a class="el" href="group___e_s_y_s___t_r.html#ga65d10db3b0b31fcd709e692f1545d30f">ESYS_TR</a>&#160;</td>
    104. 

  104.           <td class="paramname"><em>signHandle</em>, </td>
    105. 

  105.         </tr>
    106. 

  106.         <tr>
    107. 

  107.           <td class="paramkey"></td>
    108. 

  108.           <td></td>
    109. 

  109.           <td class="paramtype"><a class="el" href="group___e_s_y_s___t_r.html#ga65d10db3b0b31fcd709e692f1545d30f">ESYS_TR</a>&#160;</td>
    110. 

  110.           <td class="paramname"><em>shandle1</em>, </td>
    111. 

  111.         </tr>
    112. 

  112.         <tr>
    113. 

  113.           <td class="paramkey"></td>
    114. 

  114.           <td></td>
    115. 

  115.           <td class="paramtype"><a class="el" href="group___e_s_y_s___t_r.html#ga65d10db3b0b31fcd709e692f1545d30f">ESYS_TR</a>&#160;</td>
    116. 

  116.           <td class="paramname"><em>shandle2</em>, </td>
    117. 

  117.         </tr>
    118. 

  118.         <tr>
    119. 

  119.           <td class="paramkey"></td>
    120. 

  120.           <td></td>
    121. 

  121.           <td class="paramtype"><a class="el" href="group___e_s_y_s___t_r.html#ga65d10db3b0b31fcd709e692f1545d30f">ESYS_TR</a>&#160;</td>
    122. 

  122.           <td class="paramname"><em>shandle3</em>, </td>
    123. 

  123.         </tr>
    124. 

  124.         <tr>
    125. 

  125.           <td class="paramkey"></td>
    126. 

  126.           <td></td>
    127. 

  127.           <td class="paramtype">const TPM2B_DATA *&#160;</td>
    128. 

  128.           <td class="paramname"><em>qualifyingData</em>, </td>
    129. 

  129.         </tr>
    130. 

  130.         <tr>
    131. 

  131.           <td class="paramkey"></td>
    132. 

  132.           <td></td>
    133. 

  133.           <td class="paramtype">const TPMT_SIG_SCHEME *&#160;</td>
    134. 

  134.           <td class="paramname"><em>inScheme</em>, </td>
    135. 

  135.         </tr>
    136. 

  136.         <tr>
    137. 

  137.           <td class="paramkey"></td>
    138. 

  138.           <td></td>
    139. 

  139.           <td class="paramtype">TPM2B_ATTEST **&#160;</td>
    140. 

  140.           <td class="paramname"><em>certifyInfo</em>, </td>
    141. 

  141.         </tr>
    142. 

  142.         <tr>
    143. 

  143.           <td class="paramkey"></td>
    144. 

  144.           <td></td>
    145. 

  145.           <td class="paramtype">TPMT_SIGNATURE **&#160;</td>
    146. 

  146.           <td class="paramname"><em>signature</em>&#160;</td>
    147. 

  147.         </tr>
    148. 

  148.         <tr>
    149. 

  149.           <td></td>
    150. 

  150.           <td>)</td>
    151. 

  151.           <td></td><td></td>
    152. 

  152.         </tr>
    153. 

  153.       </table>
    154. 

  154. </div><div class="memdoc">
    155. 

  155. <p>One-Call function for TPM2_Certify</p>
    156. 

  156. <p>This function invokes the TPM2_Certify command in a one-call variant. This means the function will block until the TPM response is available. All input parameters are const. The memory for non-simple output parameters is allocated by the function implementation.</p>
    157. 

  157. <dl class="params"><dt>Parameters</dt><dd>
    158. 

  158.   <table class="params">
    159. 

  159.     <tr><td class="paramdir">[in,out]</td><td class="paramname">esysContext</td><td>The <a class="el" href="group__esys__int.html#struct_e_s_y_s___c_o_n_t_e_x_t">ESYS_CONTEXT</a>. </td></tr>
    160. 

  160.     <tr><td class="paramdir">[in]</td><td class="paramname">objectHandle</td><td>Handle of the object to be certified. </td></tr>
    161. 

  161.     <tr><td class="paramdir">[in]</td><td class="paramname">signHandle</td><td>Handle of the key used to sign the attestation structure. </td></tr>
    162. 

  162.     <tr><td class="paramdir">[in]</td><td class="paramname">shandle1</td><td>Session handle for authorization of objectHandle </td></tr>
    163. 

  163.     <tr><td class="paramdir">[in]</td><td class="paramname">shandle2</td><td>Session handle for authorization of signHandle </td></tr>
    164. 

  164.     <tr><td class="paramdir">[in]</td><td class="paramname">shandle3</td><td>Third session handle. </td></tr>
    165. 

  165.     <tr><td class="paramdir">[in]</td><td class="paramname">qualifyingData</td><td>User provided qualifying data. </td></tr>
    166. 

  166.     <tr><td class="paramdir">[in]</td><td class="paramname">inScheme</td><td>TPM2_Signing scheme to use if the scheme for signHandle is TPM2_ALG_NULL. </td></tr>
    167. 

  167.     <tr><td class="paramdir">[out]</td><td class="paramname">certifyInfo</td><td>The structure that was signed. (callee-allocated) </td></tr>
    168. 

  168.     <tr><td class="paramdir">[out]</td><td class="paramname">signature</td><td>The asymmetric signature over certifyInfo using the key referenced by signHandle. (callee-allocated) </td></tr>
    169. 

  169.   </table>
    170. 

  170.   </dd>
    171. 

  171. </dl>
    172. 

  172. <dl class="retval"><dt>Return values</dt><dd>
    173. 

  173.   <table class="retval">
    174. 

  174.     <tr><td class="paramname">TSS2_RC_SUCCESS</td><td>if the function call was a success. </td></tr>
    175. 

  175.     <tr><td class="paramname">TSS2_ESYS_RC_BAD_REFERENCE</td><td>if the esysContext or required input pointers or required output handle references are NULL. </td></tr>
    176. 

  176.     <tr><td class="paramname">TSS2_ESYS_RC_BAD_CONTEXT</td><td>if esysContext corruption is detected. </td></tr>
    177. 

  177.     <tr><td class="paramname">TSS2_ESYS_RC_MEMORY</td><td>if the ESAPI cannot allocate enough memory for internal operations or return parameters. </td></tr>
    178. 

  178.     <tr><td class="paramname">TSS2_ESYS_RC_BAD_SEQUENCE</td><td>if the context has an asynchronous operation already pending. </td></tr>
    179. 

  179.     <tr><td class="paramname">TSS2_ESYS_RC_INSUFFICIENT_RESPONSE</td><td>if the TPM's response does not at least contain the tag, response length, and response code. </td></tr>
    180. 

  180.     <tr><td class="paramname">TSS2_ESYS_RC_MALFORMED_RESPONSE</td><td>if the TPM's response is corrupted. </td></tr>
    181. 

  181.     <tr><td class="paramname">TSS2_ESYS_RC_RSP_AUTH_FAILED</td><td>if the response HMAC from the TPM did not verify. </td></tr>
    182. 

  182.     <tr><td class="paramname">TSS2_ESYS_RC_MULTIPLE_DECRYPT_SESSIONS</td><td>if more than one session has the 'decrypt' attribute bit set. </td></tr>
    183. 

  183.     <tr><td class="paramname">TSS2_ESYS_RC_MULTIPLE_ENCRYPT_SESSIONS</td><td>if more than one session has the 'encrypt' attribute bit set. </td></tr>
    184. 

  184.     <tr><td class="paramname">TSS2_ESYS_RC_BAD_TR</td><td>if any of the ESYS_TR objects are unknown to the <a class="el" href="group__esys__int.html#struct_e_s_y_s___c_o_n_t_e_x_t">ESYS_CONTEXT</a> or are of the wrong type or if required ESYS_TR objects are ESYS_TR_NONE. </td></tr>
    185. 

  185.     <tr><td class="paramname">TSS2_RCs</td><td>produced by lower layers of the software stack may be returned to the caller unaltered unless handled internally. </td></tr>
    186. 

  186.   </table>
    187. 

  187.   </dd>
    188. 

  188. </dl>
    189. 

  189. 

  190. </div>
    191. 

  191. </div>
    192. 

  192. <a id="ga4b0df185f05f30b77726a6f6866365df"></a>
    193. 

  193. <h2 class="memtitle"><span class="permalink"><a href="#ga4b0df185f05f30b77726a6f6866365df">&#9670;&nbsp;</a></span>Esys_Certify_Async()</h2>
    194. 

  194. 

  195. <div class="memitem">
    196. 

  196. <div class="memproto">
    197. 

  197.       <table class="memname">
    198. 

  198.         <tr>
    199. 

  199.           <td class="memname">TSS2_RC Esys_Certify_Async </td>
    200. 

  200.           <td>(</td>
    201. 

  201.           <td class="paramtype"><a class="el" href="group__esys__int.html#struct_e_s_y_s___c_o_n_t_e_x_t">ESYS_CONTEXT</a> *&#160;</td>
    202. 

  202.           <td class="paramname"><em>esysContext</em>, </td>
    203. 

  203.         </tr>
    204. 

  204.         <tr>
    205. 

  205.           <td class="paramkey"></td>
    206. 

  206.           <td></td>
    207. 

  207.           <td class="paramtype"><a class="el" href="group___e_s_y_s___t_r.html#ga65d10db3b0b31fcd709e692f1545d30f">ESYS_TR</a>&#160;</td>
    208. 

  208.           <td class="paramname"><em>objectHandle</em>, </td>
    209. 

  209.         </tr>
    210. 

  210.         <tr>
    211. 

  211.           <td class="paramkey"></td>
    212. 

  212.           <td></td>
    213. 

  213.           <td class="paramtype"><a class="el" href="group___e_s_y_s___t_r.html#ga65d10db3b0b31fcd709e692f1545d30f">ESYS_TR</a>&#160;</td>
    214. 

  214.           <td class="paramname"><em>signHandle</em>, </td>
    215. 

  215.         </tr>
    216. 

  216.         <tr>
    217. 

  217.           <td class="paramkey"></td>
    218. 

  218.           <td></td>
    219. 

  219.           <td class="paramtype"><a class="el" href="group___e_s_y_s___t_r.html#ga65d10db3b0b31fcd709e692f1545d30f">ESYS_TR</a>&#160;</td>
    220. 

  220.           <td class="paramname"><em>shandle1</em>, </td>
    221. 

  221.         </tr>
    222. 

  222.         <tr>
    223. 

  223.           <td class="paramkey"></td>
    224. 

  224.           <td></td>
    225. 

  225.           <td class="paramtype"><a class="el" href="group___e_s_y_s___t_r.html#ga65d10db3b0b31fcd709e692f1545d30f">ESYS_TR</a>&#160;</td>
    226. 

  226.           <td class="paramname"><em>shandle2</em>, </td>
    227. 

  227.         </tr>
    228. 

  228.         <tr>
    229. 

  229.           <td class="paramkey"></td>
    230. 

  230.           <td></td>
    231. 

  231.           <td class="paramtype"><a class="el" href="group___e_s_y_s___t_r.html#ga65d10db3b0b31fcd709e692f1545d30f">ESYS_TR</a>&#160;</td>
    232. 

  232.           <td class="paramname"><em>shandle3</em>, </td>
    233. 

  233.         </tr>
    234. 

  234.         <tr>
    235. 

  235.           <td class="paramkey"></td>
    236. 

  236.           <td></td>
    237. 

  237.           <td class="paramtype">const TPM2B_DATA *&#160;</td>
    238. 

  238.           <td class="paramname"><em>qualifyingData</em>, </td>
    239. 

  239.         </tr>
    240. 

  240.         <tr>
    241. 

  241.           <td class="paramkey"></td>
    242. 

  242.           <td></td>
    243. 

  243.           <td class="paramtype">const TPMT_SIG_SCHEME *&#160;</td>
    244. 

  244.           <td class="paramname"><em>inScheme</em>&#160;</td>
    245. 

  245.         </tr>
    246. 

  246.         <tr>
    247. 

  247.           <td></td>
    248. 

  248.           <td>)</td>
    249. 

  249.           <td></td><td></td>
    250. 

  250.         </tr>
    251. 

  251.       </table>
    252. 

  252. </div><div class="memdoc">
    253. 

  253. <p>Asynchronous function for TPM2_Certify</p>
    254. 

  254. <p>This function invokes the TPM2_Certify command in a asynchronous variant. This means the function will return as soon as the command has been sent downwards the stack to the TPM. All input parameters are const. In order to retrieve the TPM's response call Esys_Certify_Finish.</p>
    255. 

  255. <dl class="params"><dt>Parameters</dt><dd>
    256. 

  256.   <table class="params">
    257. 

  257.     <tr><td class="paramdir">[in,out]</td><td class="paramname">esysContext</td><td>The <a class="el" href="group__esys__int.html#struct_e_s_y_s___c_o_n_t_e_x_t">ESYS_CONTEXT</a>. </td></tr>
    258. 

  258.     <tr><td class="paramdir">[in]</td><td class="paramname">objectHandle</td><td>Handle of the object to be certified. </td></tr>
    259. 

  259.     <tr><td class="paramdir">[in]</td><td class="paramname">signHandle</td><td>Handle of the key used to sign the attestation structure. </td></tr>
    260. 

  260.     <tr><td class="paramdir">[in]</td><td class="paramname">shandle1</td><td>Session handle for authorization of objectHandle </td></tr>
    261. 

  261.     <tr><td class="paramdir">[in]</td><td class="paramname">shandle2</td><td>Session handle for authorization of signHandle </td></tr>
    262. 

  262.     <tr><td class="paramdir">[in]</td><td class="paramname">shandle3</td><td>Third session handle. </td></tr>
    263. 

  263.     <tr><td class="paramdir">[in]</td><td class="paramname">qualifyingData</td><td>User provided qualifying data. </td></tr>
    264. 

  264.     <tr><td class="paramdir">[in]</td><td class="paramname">inScheme</td><td>TPM2_Signing scheme to use if the scheme for signHandle is TPM2_ALG_NULL. </td></tr>
    265. 

  265.   </table>
    266. 

  266.   </dd>
    267. 

  267. </dl>
    268. 

  268. <dl class="retval"><dt>Return values</dt><dd>
    269. 

  269.   <table class="retval">
    270. 

  270.     <tr><td class="paramname">ESYS_RC_SUCCESS</td><td>if the function call was a success. </td></tr>
    271. 

  271.     <tr><td class="paramname">TSS2_ESYS_RC_BAD_REFERENCE</td><td>if the esysContext or required input pointers or required output handle references are NULL. </td></tr>
    272. 

  272.     <tr><td class="paramname">TSS2_ESYS_RC_BAD_CONTEXT</td><td>if esysContext corruption is detected. </td></tr>
    273. 

  273.     <tr><td class="paramname">TSS2_ESYS_RC_MEMORY</td><td>if the ESAPI cannot allocate enough memory for internal operations or return parameters. </td></tr>
    274. 

  274.     <tr><td class="paramname">TSS2_RCs</td><td>produced by lower layers of the software stack may be returned to the caller unaltered unless handled internally. </td></tr>
    275. 

  275.     <tr><td class="paramname">TSS2_ESYS_RC_MULTIPLE_DECRYPT_SESSIONS</td><td>if more than one session has the 'decrypt' attribute bit set. </td></tr>
    276. 

  276.     <tr><td class="paramname">TSS2_ESYS_RC_MULTIPLE_ENCRYPT_SESSIONS</td><td>if more than one session has the 'encrypt' attribute bit set. </td></tr>
    277. 

  277.     <tr><td class="paramname">TSS2_ESYS_RC_BAD_TR</td><td>if any of the ESYS_TR objects are unknown to the <a class="el" href="group__esys__int.html#struct_e_s_y_s___c_o_n_t_e_x_t">ESYS_CONTEXT</a> or are of the wrong type or if required ESYS_TR objects are ESYS_TR_NONE. </td></tr>
    278. 

  278.   </table>
    279. 

  279.   </dd>
    280. 

  280. </dl>
    281. 

  281. 

  282. </div>
    283. 

  283. </div>
    284. 

  284. <a id="gac950cad63671ecddd53223ecb2952775"></a>
    285. 

  285. <h2 class="memtitle"><span class="permalink"><a href="#gac950cad63671ecddd53223ecb2952775">&#9670;&nbsp;</a></span>Esys_Certify_Finish()</h2>
    286. 

  286. 

  287. <div class="memitem">
    288. 

  288. <div class="memproto">
    289. 

  289.       <table class="memname">
    290. 

  290.         <tr>
    291. 

  291.           <td class="memname">TSS2_RC Esys_Certify_Finish </td>
    292. 

  292.           <td>(</td>
    293. 

  293.           <td class="paramtype"><a class="el" href="group__esys__int.html#struct_e_s_y_s___c_o_n_t_e_x_t">ESYS_CONTEXT</a> *&#160;</td>
    294. 

  294.           <td class="paramname"><em>esysContext</em>, </td>
    295. 

  295.         </tr>
    296. 

  296.         <tr>
    297. 

  297.           <td class="paramkey"></td>
    298. 

  298.           <td></td>
    299. 

  299.           <td class="paramtype">TPM2B_ATTEST **&#160;</td>
    300. 

  300.           <td class="paramname"><em>certifyInfo</em>, </td>
    301. 

  301.         </tr>
    302. 

  302.         <tr>
    303. 

  303.           <td class="paramkey"></td>
    304. 

  304.           <td></td>
    305. 

  305.           <td class="paramtype">TPMT_SIGNATURE **&#160;</td>
    306. 

  306.           <td class="paramname"><em>signature</em>&#160;</td>
    307. 

  307.         </tr>
    308. 

  308.         <tr>
    309. 

  309.           <td></td>
    310. 

  310.           <td>)</td>
    311. 

  311.           <td></td><td></td>
    312. 

  312.         </tr>
    313. 

  313.       </table>
    314. 

  314. </div><div class="memdoc">
    315. 

  315. <p>Asynchronous finish function for TPM2_Certify</p>
    316. 

  316. <p>This function returns the results of a TPM2_Certify command invoked via Esys_Certify_Finish. All non-simple output parameters are allocated by the function's implementation. NULL can be passed for every output parameter if the value is not required.</p>
    317. 

  317. <dl class="params"><dt>Parameters</dt><dd>
    318. 

  318.   <table class="params">
    319. 

  319.     <tr><td class="paramdir">[in,out]</td><td class="paramname">esysContext</td><td>The <a class="el" href="group__esys__int.html#struct_e_s_y_s___c_o_n_t_e_x_t">ESYS_CONTEXT</a>. </td></tr>
    320. 

  320.     <tr><td class="paramdir">[out]</td><td class="paramname">certifyInfo</td><td>The structure that was signed. (callee-allocated) </td></tr>
    321. 

  321.     <tr><td class="paramdir">[out]</td><td class="paramname">signature</td><td>The asymmetric signature over certifyInfo using the key referenced by signHandle. (callee-allocated) </td></tr>
    322. 

  322.   </table>
    323. 

  323.   </dd>
    324. 

  324. </dl>
    325. 

  325. <dl class="retval"><dt>Return values</dt><dd>
    326. 

  326.   <table class="retval">
    327. 

  327.     <tr><td class="paramname">TSS2_RC_SUCCESS</td><td>on success </td></tr>
    328. 

  328.     <tr><td class="paramname">ESYS_RC_SUCCESS</td><td>if the function call was a success. </td></tr>
    329. 

  329.     <tr><td class="paramname">TSS2_ESYS_RC_BAD_REFERENCE</td><td>if the esysContext or required input pointers or required output handle references are NULL. </td></tr>
    330. 

  330.     <tr><td class="paramname">TSS2_ESYS_RC_BAD_CONTEXT</td><td>if esysContext corruption is detected. </td></tr>
    331. 

  331.     <tr><td class="paramname">TSS2_ESYS_RC_MEMORY</td><td>if the ESAPI cannot allocate enough memory for internal operations or return parameters. </td></tr>
    332. 

  332.     <tr><td class="paramname">TSS2_ESYS_RC_BAD_SEQUENCE</td><td>if the context has an asynchronous operation already pending. </td></tr>
    333. 

  333.     <tr><td class="paramname">TSS2_ESYS_RC_TRY_AGAIN</td><td>if the timeout counter expires before the TPM response is received. </td></tr>
    334. 

  334.     <tr><td class="paramname">TSS2_ESYS_RC_INSUFFICIENT_RESPONSE</td><td>if the TPM's response does not at least contain the tag, response length, and response code. </td></tr>
    335. 

  335.     <tr><td class="paramname">TSS2_ESYS_RC_RSP_AUTH_FAILED</td><td>if the response HMAC from the TPM did not verify. </td></tr>
    336. 

  336.     <tr><td class="paramname">TSS2_ESYS_RC_MALFORMED_RESPONSE</td><td>if the TPM's response is corrupted. </td></tr>
    337. 

  337.     <tr><td class="paramname">TSS2_RCs</td><td>produced by lower layers of the software stack may be returned to the caller unaltered unless handled internally. </td></tr>
    338. 

  338.   </table>
    339. 

  339.   </dd>
    340. 

  340. </dl>
    341. 

  341. 

  342. </div>
    343. 

  343. </div>
    344. 

  344. </div><!-- contents -->
    345. 

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    346. 

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