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  23. <h1 class="title">src/checksums/md5</h1>
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  50. <li>
  51. <details open>
  52. <summary><a class="reference reference-toplevel" href="#7" id="57">Types</a></summary>
  53. <ul class="simple simple-toc-section">
  54. <li><a class="reference" href="#MD5Context" title="MD5Context {.final.} = object">MD5Context</a></li>
  55. <li><a class="reference" href="#MD5Digest" title="MD5Digest = array[0 .. 15, uint8]">MD5Digest</a></li>
  56. </ul>
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  59. <li>
  60. <details open>
  61. <summary><a class="reference reference-toplevel" href="#12" id="62">Procs</a></summary>
  62. <ul class="simple simple-toc-section">
  63. <ul class="simple nested-toc-section">$
  64. <li><a class="reference" href="#%24%2CMD5Digest" title="`$`(d: MD5Digest): string">`$`(d: MD5Digest): string</a></li>
  65. </ul>
  66. <ul class="simple nested-toc-section">==
  67. <li><a class="reference" href="#%3D%3D%2CMD5Digest%2CMD5Digest" title="`==`(D1, D2: MD5Digest): bool">`==`(D1, D2: MD5Digest): bool</a></li>
  68. </ul>
  69. <ul class="simple nested-toc-section">getMD5
  70. <li><a class="reference" href="#getMD5%2Cstring" title="getMD5(s: string): string">getMD5(s: string): string</a></li>
  71. </ul>
  72. <ul class="simple nested-toc-section">md5Final
  73. <li><a class="reference" href="#md5Final%2CMD5Context%2CMD5Digest" title="md5Final(c: var MD5Context; digest: var MD5Digest)">md5Final(c: var MD5Context; digest: var MD5Digest)</a></li>
  74. </ul>
  75. <ul class="simple nested-toc-section">md5Init
  76. <li><a class="reference" href="#md5Init%2CMD5Context" title="md5Init(c: var MD5Context)">md5Init(c: var MD5Context)</a></li>
  77. </ul>
  78. <ul class="simple nested-toc-section">md5Update
  79. <li><a class="reference" href="#md5Update%2CMD5Context%2Ccstring%2Cint" title="md5Update(c: var MD5Context; input: cstring; len: int)">md5Update(c: var MD5Context; input: cstring; len: int)</a></li>
  80. <li><a class="reference" href="#md5Update%2CMD5Context%2CopenArray%5Buint8%5D" title="md5Update(c: var MD5Context; input: openArray[uint8])">md5Update(c: var MD5Context; input: openArray[uint8])</a></li>
  81. </ul>
  82. <ul class="simple nested-toc-section">toMD5
  83. <li><a class="reference" href="#toMD5%2Cstring" title="toMD5(s: string): MD5Digest">toMD5(s: string): MD5Digest</a></li>
  84. </ul>
  85. </ul>
  86. </details>
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  88. </ul>
  89. </div>
  90. <div class="nine columns" id="content">
  91. <div id="tocRoot"></div>
  92. <p class="module-desc"><div class="admonition admonition-info"><span class="admonition-info-text"><b>Note:</b></span>
  93. In order to use this module, run <tt class="docutils literal"><span class="pre"><span class="Identifier">nimble</span> <span class="Identifier">install</span> <span class="Identifier">checksums</span></span></tt>.</div>
  94. <p>Module for computing <a class="reference external" href="https://en.wikipedia.org/wiki/MD5">MD5 checksums</a>.</p>
  95. <p>Be aware that using MD5 for cryptographic purposes is <em>strongly</em> discouraged as it is no longer deemed secure enough even against consumer grade computational resources.</p>
  96. <p>This module also works at compile time and in JavaScript.</p>
  97. <h1><a class="toc-backref" id="see-also" href="#see-also">See also</a></h1><ul class="simple"><li><a class="reference external" href="base64.html">base64 module</a> for a Base64 encoder and decoder</li>
  98. <li><a class="reference external" href="sha1.html">std/sha1 module</a> for the SHA-1 checksum algorithm</li>
  99. <li><a class="reference external" href="sha2.html">std/sha2 module</a> for the SHA-2 checksum algorithm</li>
  100. <li><a class="reference external" href="sha3.html">std/sha3 module</a> for the SHA-3 checksum algorithm</li>
  101. <li><a class="reference external" href="hashes.html">hashes module</a> for efficient computations of hash values for diverse Nim types</li>
  102. </ul>
  103. </p>
  104. <div class="section" id="7">
  105. <h1><a class="toc-backref" href="#7">Types</a></h1>
  106. <dl class="item">
  107. <div id="MD5Context">
  108. <dt><pre><a href="md5.html#MD5Context"><span class="Identifier">MD5Context</span></a> {.<span class="Identifier">final</span>.} <span class="Other">=</span> <span class="Keyword">object</span></pre></dt>
  109. <dd>
  110. </dd>
  111. </div>
  112. <div id="MD5Digest">
  113. <dt><pre><a href="md5.html#MD5Digest"><span class="Identifier">MD5Digest</span></a> <span class="Other">=</span> <span class="Identifier">array</span><span class="Other">[</span><span class="DecNumber">0</span> <span class="Operator">..</span> <span class="DecNumber">15</span><span class="Other">,</span> <span class="Identifier">uint8</span><span class="Other">]</span></pre></dt>
  114. <dd>
  115. MD5 checksum of a string, obtained with the <a class="reference external" href="#toMD5,string">toMD5 proc</a>.
  116. </dd>
  117. </div>
  118. </dl>
  119. </div>
  120. <div class="section" id="12">
  121. <h1><a class="toc-backref" href="#12">Procs</a></h1>
  122. <dl class="item">
  123. <div id="$-procs-all">
  124. <div id="$,MD5Digest">
  125. <dt><pre><span class="Keyword">proc</span> <a href="#%24%2CMD5Digest"><span class="Identifier">`$`</span></a><span class="Other">(</span><span class="Identifier">d</span><span class="Other">:</span> <a href="md5.html#MD5Digest"><span class="Identifier">MD5Digest</span></a><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">string</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">forbids</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
  126. <dd>
  127. Converts a <tt class="docutils literal"><span class="pre"><span class="Identifier">MD5Digest</span></span></tt> value into its string representation.
  128. </dd>
  129. </div>
  130. </div>
  131. <div id="==-procs-all">
  132. <div id="==,MD5Digest,MD5Digest">
  133. <dt><pre><span class="Keyword">proc</span> <a href="#%3D%3D%2CMD5Digest%2CMD5Digest"><span class="Identifier">`==`</span></a><span class="Other">(</span><span class="Identifier">D1</span><span class="Other">,</span> <span class="Identifier">D2</span><span class="Other">:</span> <a href="md5.html#MD5Digest"><span class="Identifier">MD5Digest</span></a><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">bool</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">forbids</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
  134. <dd>
  135. Checks if two <tt class="docutils literal"><span class="pre"><span class="Identifier">MD5Digest</span></span></tt> values are identical.
  136. </dd>
  137. </div>
  138. </div>
  139. <div id="getMD5-procs-all">
  140. <div id="getMD5,string">
  141. <dt><pre><span class="Keyword">proc</span> <a href="#getMD5%2Cstring"><span class="Identifier">getMD5</span></a><span class="Other">(</span><span class="Identifier">s</span><span class="Other">:</span> <span class="Identifier">string</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">string</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">forbids</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
  142. <dd>
  143. <p>Computes an MD5 value of <tt class="docutils literal"><span class="pre"><span class="Identifier">s</span></span></tt> and returns its string representation.</p>
  144. <p><strong>See also:</strong></p>
  145. <ul class="simple"><li><a class="reference external" href="#toMD5,string">toMD5 proc</a> which returns the <tt class="docutils literal"><span class="pre"><span class="Identifier">MD5Digest</span></span></tt> of a string</li>
  146. </ul>
  147. <p><strong class="examples_text">Example:</strong></p>
  148. <pre class="listing"><span class="Identifier">assert</span> <span class="Identifier">getMD5</span><span class="Punctuation">(</span><span class="StringLit">&quot;abc&quot;</span><span class="Punctuation">)</span> <span class="Operator">==</span> <span class="StringLit">&quot;900150983cd24fb0d6963f7d28e17f72&quot;</span></pre>
  149. </dd>
  150. </div>
  151. </div>
  152. <div id="md5Final-procs-all">
  153. <div id="md5Final,MD5Context,MD5Digest">
  154. <dt><pre><span class="Keyword">proc</span> <a href="#md5Final%2CMD5Context%2CMD5Digest"><span class="Identifier">md5Final</span></a><span class="Other">(</span><span class="Identifier">c</span><span class="Other">:</span> <span class="Keyword">var</span> <a href="md5.html#MD5Context"><span class="Identifier">MD5Context</span></a><span class="Other">;</span> <span class="Identifier">digest</span><span class="Other">:</span> <span class="Keyword">var</span> <a href="md5.html#MD5Digest"><span class="Identifier">MD5Digest</span></a><span class="Other">)</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span>
  155. <span class="Identifier">gcsafe</span><span class="Other">,</span> <span class="Identifier">forbids</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
  156. <dd>
  157. </dd>
  158. </div>
  159. </div>
  160. <div id="md5Init-procs-all">
  161. <div id="md5Init,MD5Context">
  162. <dt><pre><span class="Keyword">proc</span> <a href="#md5Init%2CMD5Context"><span class="Identifier">md5Init</span></a><span class="Other">(</span><span class="Identifier">c</span><span class="Other">:</span> <span class="Keyword">var</span> <a href="md5.html#MD5Context"><span class="Identifier">MD5Context</span></a><span class="Other">)</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">gcsafe</span><span class="Other">,</span> <span class="Identifier">forbids</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
  163. <dd>
  164. </dd>
  165. </div>
  166. </div>
  167. <div id="md5Update-procs-all">
  168. <div id="md5Update,MD5Context,cstring,int">
  169. <dt><pre><span class="Keyword">proc</span> <a href="#md5Update%2CMD5Context%2Ccstring%2Cint"><span class="Identifier">md5Update</span></a><span class="Other">(</span><span class="Identifier">c</span><span class="Other">:</span> <span class="Keyword">var</span> <a href="md5.html#MD5Context"><span class="Identifier">MD5Context</span></a><span class="Other">;</span> <span class="Identifier">input</span><span class="Other">:</span> <span class="Identifier">cstring</span><span class="Other">;</span> <span class="Identifier">len</span><span class="Other">:</span> <span class="Identifier">int</span><span class="Other">)</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span>
  170. <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">gcsafe</span><span class="Other">,</span> <span class="Identifier">forbids</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
  171. <dd>
  172. <p>Updates the <tt class="docutils literal"><span class="pre"><span class="Identifier">MD5Context</span></span></tt> with the <tt class="docutils literal"><span class="pre"><span class="Identifier">input</span></span></tt> data of length <tt class="docutils literal"><span class="pre"><span class="Identifier">len</span></span></tt>.</p>
  173. <p>If you use the <a class="reference external" href="#toMD5,string">toMD5 proc</a>, there's no need to call this function explicitly.</p>
  174. </dd>
  175. </div>
  176. <div id="md5Update,MD5Context,openArray[uint8]">
  177. <dt><pre><span class="Keyword">proc</span> <a href="#md5Update%2CMD5Context%2CopenArray%5Buint8%5D"><span class="Identifier">md5Update</span></a><span class="Other">(</span><span class="Identifier">c</span><span class="Other">:</span> <span class="Keyword">var</span> <a href="md5.html#MD5Context"><span class="Identifier">MD5Context</span></a><span class="Other">;</span> <span class="Identifier">input</span><span class="Other">:</span> <span class="Identifier">openArray</span><span class="Other">[</span><span class="Identifier">uint8</span><span class="Other">]</span><span class="Other">)</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span>
  178. <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">gcsafe</span><span class="Other">,</span> <span class="Identifier">forbids</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
  179. <dd>
  180. </dd>
  181. </div>
  182. </div>
  183. <div id="toMD5-procs-all">
  184. <div id="toMD5,string">
  185. <dt><pre><span class="Keyword">proc</span> <a href="#toMD5%2Cstring"><span class="Identifier">toMD5</span></a><span class="Other">(</span><span class="Identifier">s</span><span class="Other">:</span> <span class="Identifier">string</span><span class="Other">)</span><span class="Other">:</span> <a href="md5.html#MD5Digest"><span class="Identifier">MD5Digest</span></a> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">forbids</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
  186. <dd>
  187. <p>Computes the <tt class="docutils literal"><span class="pre"><span class="Identifier">MD5Digest</span></span></tt> value for a string <tt class="docutils literal"><span class="pre"><span class="Identifier">s</span></span></tt>.</p>
  188. <p><strong>See also:</strong></p>
  189. <ul class="simple"><li><a class="reference external" href="#getMD5,string">getMD5 proc</a> which returns a string representation of the <tt class="docutils literal"><span class="pre"><span class="Identifier">MD5Digest</span></span></tt></li>
  190. <li><a class="reference external" href="#$,MD5Digest">$ proc</a> for converting MD5Digest to string</li>
  191. </ul>
  192. <p><strong class="examples_text">Example:</strong></p>
  193. <pre class="listing"><span class="Identifier">assert</span> <span class="Operator">$</span><span class="Identifier">toMD5</span><span class="Punctuation">(</span><span class="StringLit">&quot;abc&quot;</span><span class="Punctuation">)</span> <span class="Operator">==</span> <span class="StringLit">&quot;900150983cd24fb0d6963f7d28e17f72&quot;</span></pre>
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