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 198
 199 <h1>Object Instance <code>nixio.CryptoHash</code></h1>
 200
 201 <p>
 202  Cryptographical Hash and HMAC object.</p>
 203
 204
 205
 206
 207
 208
 209
 210 <h2>Functions</h2>
 211 <table class="function_list">
 212
 213         <tr>
 214         <td class="name" nowrap><a href="#CryptoHash.final">CryptoHash:final</a>&nbsp;()</td>
 215         <td class="summary">
 216  Finalize the hash and return the digest.</td>
 217         </tr>
 218
 219         <tr>
 220         <td class="name" nowrap><a href="#CryptoHash.update">CryptoHash:update</a>&nbsp;(chunk)</td>
 221         <td class="summary">
 222  Add another chunk of data to be hashed.</td>
 223         </tr>
 224
 225 </table>
 226
 227
 228
 229
 230
 231
 232 <br/>
 233 <br/>
 234
 235
 236 <h2><a name="functions"></a>Functions</h2>
 237 <dl class="function">
 238
 239
 240
 241 <dt><a name="CryptoHash.final"></a><strong>CryptoHash:final</strong>&nbsp;()</dt>
 242 <dd>
 243
 244  Finalize the hash and return the digest.
 245
 246
 247
 248
 249
 250 <h3>Usage:</h3>
 251 You cannot call update on a hash object that was already finalized
 252  you can however call final multiple times to get the digest.
 253
 254
 255
 256 <h3>Return values:</h3>
 257 <ol>
 258
 259         <li>hexdigest
 260
 261         <li>buffer containing binary digest
 262
 263 </ol>
 264
 265
 266
 267 </dd>
 268
 269
 270
 271
 272 <dt><a name="CryptoHash.update"></a><strong>CryptoHash:update</strong>&nbsp;(chunk)</dt>
 273 <dd>
 274
 275  Add another chunk of data to be hashed.
 276
 277
 278 <h3>Parameters</h3>
 279 <ul>
 280
 281         <li>
 282           chunk: Chunk of data
 283         </li>
 284
 285 </ul>
 286
 287
 288
 289
 290
 291
 292 <h3>Return value:</h3>
 293 CryptoHash object (self)
 294
 295
 296
 297 </dd>
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