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 194
 195 <h1>Object Instance <code>nixio.CryptoHash</code></h1>
 196
 197 <p>
 198  Cryptographical Hash and HMAC object.</p>
 199
 200
 201
 202
 203
 204
 205
 206 <h2>Functions</h2>
 207 <table class="function_list">
 208
 209         <tr>
 210         <td class="name" nowrap><a href="#CryptoHash.final">CryptoHash:final</a>&nbsp;()</td>
 211         <td class="summary">
 212  Finalize the hash and return the digest.</td>
 213         </tr>
 214
 215         <tr>
 216         <td class="name" nowrap><a href="#CryptoHash.update">CryptoHash:update</a>&nbsp;(chunk)</td>
 217         <td class="summary">
 218  Add another chunk of data to be hashed.</td>
 219         </tr>
 220
 221 </table>
 222
 223
 224
 225
 226
 227
 228 <br/>
 229 <br/>
 230
 231
 232 <h2><a name="functions"></a>Functions</h2>
 233 <dl class="function">
 234
 235
 236
 237 <dt><a name="CryptoHash.final"></a><strong>CryptoHash:final</strong>&nbsp;()</dt>
 238 <dd>
 239
 240  Finalize the hash and return the digest.
 241
 242
 243
 244
 245
 246 <h3>Usage:</h3>
 247 You cannot call update on a hash object that was already finalized
 248  you can however call final multiple times to get the digest.
 249
 250
 251
 252 <h3>Return values:</h3>
 253 <ol>
 254
 255         <li>hexdigest
 256
 257         <li>buffer containing binary digest
 258
 259 </ol>
 260
 261
 262
 263 </dd>
 264
 265
 266
 267
 268 <dt><a name="CryptoHash.update"></a><strong>CryptoHash:update</strong>&nbsp;(chunk)</dt>
 269 <dd>
 270
 271  Add another chunk of data to be hashed.
 272
 273
 274 <h3>Parameters</h3>
 275 <ul>
 276
 277         <li>
 278           chunk: Chunk of data
 279         </li>
 280
 281 </ul>
 282
 283
 284
 285
 286
 287
 288 <h3>Return value:</h3>
 289 CryptoHash object (self)
 290
 291
 292
 293 </dd>
 294
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