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 <span id="projectnumber">4.2.1</span>
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<div class="title">blowfish.h File Reference<div class="ingroups"><a class="el" href="group__BC__m.html">Block ciphers</a> | <a class="el" href="group__BC__blowfish__m.html">Block ciphers: Blowfish</a></div></div> </div>
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<p>Blowfish block cipher.
<a href="#details">More...</a></p>
<div class="textblock"><code>#include "<a class="el" href="beecrypt_8h_source.html">beecrypt/beecrypt.h</a>"</code><br/>
<code>#include "<a class="el" href="blowfishopt_8h_source.html">beecrypt/blowfishopt.h</a>"</code><br/>
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Include dependency graph for blowfish.h:</div>
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<p><a href="blowfish_8h_source.html">Go to the source code of this file.</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="nested-classes"></a>
Data Structures</h2></td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structblowfishParam.html">blowfishParam</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Holds all the parameters necessary for the Blowfish cipher. <a href="structblowfishParam.html#details">More...</a><br/></td></tr>
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Macros</h2></td></tr>
<tr class="memitem:a320de9881e6c7560cd5b13828c420d5a"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="blowfish_8h.html#a320de9881e6c7560cd5b13828c420d5a">BLOWFISHROUNDS</a>   16</td></tr>
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<tr class="memitem:aa638e9cb3cbf0ad5b94a25fdb9eb64c6"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="blowfish_8h.html#aa638e9cb3cbf0ad5b94a25fdb9eb64c6">BLOWFISHPSIZE</a>   (<a class="el" href="blowfish_8h.html#a320de9881e6c7560cd5b13828c420d5a">BLOWFISHROUNDS</a>+2)</td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:acce3d0c95c67c98202e851063604819e"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="blowfish_8h.html#acce3d0c95c67c98202e851063604819e">blowfishSetup</a> (<a class="el" href="structblowfishParam.html">blowfishParam</a> *, const <a class="el" href="api_8h.html#ab8ef12fab634c171394422d0ee8baf94">byte</a> *, size_t, <a class="el" href="group__BC__m.html#gace10d4c0b0409d35c6a703d6445fc558">cipherOperation</a>)</td></tr>
<tr class="memdesc:acce3d0c95c67c98202e851063604819e"><td class="mdescLeft"> </td><td class="mdescRight">The function performs the cipher's key expansion. <a href="#acce3d0c95c67c98202e851063604819e">More...</a><br/></td></tr>
<tr class="separator:acce3d0c95c67c98202e851063604819e"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a56566a49f33043d7a443a7bbbcd7bd5f"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="blowfish_8h.html#a56566a49f33043d7a443a7bbbcd7bd5f">blowfishSetIV</a> (<a class="el" href="structblowfishParam.html">blowfishParam</a> *, const <a class="el" href="api_8h.html#ab8ef12fab634c171394422d0ee8baf94">byte</a> *iv)</td></tr>
<tr class="memdesc:a56566a49f33043d7a443a7bbbcd7bd5f"><td class="mdescLeft"> </td><td class="mdescRight">This function sets the Initialization Vector. <a href="#a56566a49f33043d7a443a7bbbcd7bd5f">More...</a><br/></td></tr>
<tr class="separator:a56566a49f33043d7a443a7bbbcd7bd5f"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a8bd243fafbf7c52359f19ab04de13c42"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="blowfish_8h.html#a8bd243fafbf7c52359f19ab04de13c42">blowfishSetCTR</a> (<a class="el" href="structblowfishParam.html">blowfishParam</a> *, const <a class="el" href="api_8h.html#ab8ef12fab634c171394422d0ee8baf94">byte</a> *nivz, size_t counter)</td></tr>
<tr class="separator:a8bd243fafbf7c52359f19ab04de13c42"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a2b48ab4a1793739d266308d1033aee70"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="blowfish_8h.html#a2b48ab4a1793739d266308d1033aee70">blowfishEncrypt</a> (<a class="el" href="structblowfishParam.html">blowfishParam</a> *, uint32_t *, const uint32_t *)</td></tr>
<tr class="memdesc:a2b48ab4a1793739d266308d1033aee70"><td class="mdescLeft"> </td><td class="mdescRight">This function performs the Blowfish encryption; it encrypts one block of 64 bits. <a href="#a2b48ab4a1793739d266308d1033aee70">More...</a><br/></td></tr>
<tr class="separator:a2b48ab4a1793739d266308d1033aee70"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a6339ebc5b30a93680c152076ddd5f033"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="blowfish_8h.html#a6339ebc5b30a93680c152076ddd5f033">blowfishDecrypt</a> (<a class="el" href="structblowfishParam.html">blowfishParam</a> *, uint32_t *, const uint32_t *)</td></tr>
<tr class="memdesc:a6339ebc5b30a93680c152076ddd5f033"><td class="mdescLeft"> </td><td class="mdescRight">This function performs the Blowfish decryption; it Rderypts one block of 64 bits. <a href="#a6339ebc5b30a93680c152076ddd5f033">More...</a><br/></td></tr>
<tr class="separator:a6339ebc5b30a93680c152076ddd5f033"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ae2137286429679c247215465d99342c5"><td class="memItemLeft" align="right" valign="top">uint32_t * </td><td class="memItemRight" valign="bottom"><a class="el" href="blowfish_8h.html#ae2137286429679c247215465d99342c5">blowfishFeedback</a> (<a class="el" href="structblowfishParam.html">blowfishParam</a> *)</td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="var-members"></a>
Variables</h2></td></tr>
<tr class="memitem:a58839854cfc0f9bcafd4b79ffd8e9d91"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="structblockCipher.html">blockCipher</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="blowfish_8h.html#a58839854cfc0f9bcafd4b79ffd8e9d91">blowfish</a></td></tr>
<tr class="memdesc:a58839854cfc0f9bcafd4b79ffd8e9d91"><td class="mdescLeft"> </td><td class="mdescRight">Holds the full API description of the Blowfish algorithm. <a href="#a58839854cfc0f9bcafd4b79ffd8e9d91">More...</a><br/></td></tr>
<tr class="separator:a58839854cfc0f9bcafd4b79ffd8e9d91"><td class="memSeparator" colspan="2"> </td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Blowfish block cipher. </p>
<p>For more information on this blockcipher, see: "Applied Cryptography", second edition Bruce Schneier Wiley & Sons</p>
<p>Also see <a href="http://www.counterpane.com/blowfish.html">http://www.counterpane.com/blowfish.html</a></p>
<dl class="section author"><dt>Author</dt><dd>Bob Deblier <a href="#" onclick="location.href='mai'+'lto:'+'bob'+'.d'+'ebl'+'ie'+'r@t'+'el'+'ene'+'t.'+'be'; return false;">bob.d<span style="display: none;">.nosp@m.</span>ebli<span style="display: none;">.nosp@m.</span>er@te<span style="display: none;">.nosp@m.</span>lene<span style="display: none;">.nosp@m.</span>t.be</a> </dd></dl>
</div><h2 class="groupheader">Macro Definition Documentation</h2>
<a class="anchor" id="aa638e9cb3cbf0ad5b94a25fdb9eb64c6"></a>
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<td class="memname">#define BLOWFISHPSIZE   (<a class="el" href="blowfish_8h.html#a320de9881e6c7560cd5b13828c420d5a">BLOWFISHROUNDS</a>+2)</td>
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<td class="memname">#define BLOWFISHROUNDS   16</td>
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<h2 class="groupheader">Function Documentation</h2>
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<td class="memname">blowfishDecrypt </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structblowfishParam.html">blowfishParam</a> * </td>
<td class="paramname"><em>bp</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t * </td>
<td class="paramname"><em>dst</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const uint32_t * </td>
<td class="paramname"><em>src</em> </td>
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<p>This function performs the Blowfish decryption; it Rderypts one block of 64 bits. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">bp</td><td>The cipher's parameter block. </td></tr>
<tr><td class="paramname">dst</td><td>The cleartext; should be aligned on 32-bit boundary. </td></tr>
<tr><td class="paramname">src</td><td>The ciphertext; should be aligned on 32-bit boundary. </td></tr>
</table>
</dd>
</dl>
<dl class="retval"><dt>Return values</dt><dd>
<table class="retval">
<tr><td class="paramname">0</td><td>on success. </td></tr>
</table>
</dd>
</dl>
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<td class="memname">blowfishEncrypt </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structblowfishParam.html">blowfishParam</a> * </td>
<td class="paramname"><em>bp</em>, </td>
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<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t * </td>
<td class="paramname"><em>dst</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const uint32_t * </td>
<td class="paramname"><em>src</em> </td>
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<p>This function performs the Blowfish encryption; it encrypts one block of 64 bits. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">bp</td><td>The cipher's parameter block. </td></tr>
<tr><td class="paramname">dst</td><td>The ciphertext; should be aligned on 32-bit boundary. </td></tr>
<tr><td class="paramname">src</td><td>The cleartext; should be aligned on 32-bit boundary. </td></tr>
</table>
</dd>
</dl>
<dl class="retval"><dt>Return values</dt><dd>
<table class="retval">
<tr><td class="paramname">0</td><td>on success. </td></tr>
</table>
</dd>
</dl>
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<td class="memname">uint32_t* blowfishFeedback </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structblowfishParam.html">blowfishParam</a> * </td>
<td class="paramname"></td><td>)</td>
<td></td>
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<td class="memname">int blowfishSetCTR </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structblowfishParam.html">blowfishParam</a> * </td>
<td class="paramname">, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="api_8h.html#ab8ef12fab634c171394422d0ee8baf94">byte</a> * </td>
<td class="paramname"><em>nivz</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">size_t </td>
<td class="paramname"><em>counter</em> </td>
</tr>
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<td></td>
<td>)</td>
<td></td><td></td>
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<td class="memname">int blowfishSetIV </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structblowfishParam.html">blowfishParam</a> * </td>
<td class="paramname"><em>bp</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="api_8h.html#ab8ef12fab634c171394422d0ee8baf94">byte</a> * </td>
<td class="paramname"><em>iv</em> </td>
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<p>This function sets the Initialization Vector. </p>
<dl class="section note"><dt>Note</dt><dd>This function is only useful in block chaining or feedback modes. </dd></dl>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">bp</td><td>The cipher's parameter block. </td></tr>
<tr><td class="paramname">iv</td><td>The initialization vector; may be null. </td></tr>
</table>
</dd>
</dl>
<dl class="retval"><dt>Return values</dt><dd>
<table class="retval">
<tr><td class="paramname">0</td><td>on success. </td></tr>
</table>
</dd>
</dl>
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<td class="memname">int blowfishSetup </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structblowfishParam.html">blowfishParam</a> * </td>
<td class="paramname"><em>bp</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="api_8h.html#ab8ef12fab634c171394422d0ee8baf94">byte</a> * </td>
<td class="paramname"><em>key</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">size_t </td>
<td class="paramname"><em>keybits</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__BC__m.html#gace10d4c0b0409d35c6a703d6445fc558">cipherOperation</a> </td>
<td class="paramname"><em>op</em> </td>
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<p>The function performs the cipher's key expansion. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">bp</td><td>The cipher's parameter block. </td></tr>
<tr><td class="paramname">key</td><td>The key value. </td></tr>
<tr><td class="paramname">keybits</td><td>The number of bits in the key; legal values are: 32 to 448, in multiples of 8. </td></tr>
<tr><td class="paramname">op</td><td>ENCRYPT or DECRYPT. </td></tr>
</table>
</dd>
</dl>
<dl class="retval"><dt>Return values</dt><dd>
<table class="retval">
<tr><td class="paramname">0</td><td>on success. </td></tr>
<tr><td class="paramname">-1</td><td>on failure. </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<h2 class="groupheader">Variable Documentation</h2>
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<td class="memname">blowfish</td>
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<p>Holds the full API description of the Blowfish algorithm. </p>
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Generated on Fri Sep 27 2013 02:36:25 for BeeCrypt by  <a href="http://www.doxygen.org/index.html">
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