📄 des_8h-source.html
字号:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8"><title>Crypto++: des.h Source File</title><link href="doxygen.css" rel="stylesheet" type="text/css"><link href="tabs.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.5.2 --><div class="tabs"> <ul> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="namespaces.html"><span>Namespaces</span></a></li> <li><a href="classes.html"><span>Classes</span></a></li> <li class="current"><a href="files.html"><span>Files</span></a></li> </ul></div><div class="tabs"> <ul> <li><a href="files.html"><span>File List</span></a></li> <li><a href="globals.html"><span>File Members</span></a></li> </ul></div><h1>des.h</h1><a href="des_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="preprocessor">#ifndef CRYPTOPP_DES_H</span><a name="l00002"></a>00002 <span class="preprocessor"></span><span class="preprocessor">#define CRYPTOPP_DES_H</span><a name="l00003"></a>00003 <span class="preprocessor"></span><span class="comment"></span><a name="l00004"></a>00004 <span class="comment">/** \file</span><a name="l00005"></a>00005 <span class="comment">*/</span><a name="l00006"></a>00006 <a name="l00007"></a>00007 <span class="preprocessor">#include "seckey.h"</span><a name="l00008"></a>00008 <span class="preprocessor">#include "secblock.h"</span><a name="l00009"></a>00009 <a name="l00010"></a>00010 NAMESPACE_BEGIN(CryptoPP)<a name="l00011"></a>00011 <a name="l00012"></a><a class="code" href="class_raw_d_e_s.html">00012</a> class CRYPTOPP_DLL <a class="code" href="class_raw_d_e_s.html">RawDES</a><a name="l00013"></a>00013 {<a name="l00014"></a>00014 <span class="keyword">public</span>:<a name="l00015"></a>00015 <span class="keywordtype">void</span> RawSetKey(<a class="code" href="cryptlib_8h.html#353ccabf5ddc119a6a33e92f7b9961c7" title="used to specify a direction for a cipher to operate in (encrypt or decrypt)">CipherDir</a> direction, <span class="keyword">const</span> byte *userKey);<a name="l00016"></a>00016 <span class="keywordtype">void</span> RawProcessBlock(word32 &l, word32 &r) <span class="keyword">const</span>;<a name="l00017"></a>00017 <a name="l00018"></a>00018 <span class="keyword">protected</span>:<a name="l00019"></a><a class="code" href="class_raw_d_e_s.html#230d29d184a38e4ce4006ae8863dc441">00019</a> <span class="keyword">static</span> <span class="keyword">const</span> word32 Spbox[8][64];<a name="l00020"></a>00020 <a name="l00021"></a><a class="code" href="class_raw_d_e_s.html#d0c0e07e75be147837e11846785f643b">00021</a> <a class="code" href="class_fixed_size_sec_block.html" title="a SecBlock with fixed size, allocated statically">FixedSizeSecBlock<word32, 32></a> k;<a name="l00022"></a>00022 };<a name="l00023"></a>00023 <span class="comment"></span><a name="l00024"></a>00024 <span class="comment">//! _</span><a name="l00025"></a><a class="code" href="struct_d_e_s___info.html">00025</a> <span class="comment"></span><span class="keyword">struct </span><a class="code" href="struct_d_e_s___info.html" title="_">DES_Info</a> : <span class="keyword">public</span> <a class="code" href="class_fixed_block_size.html" title="to be inherited by block ciphers with fixed block size">FixedBlockSize</a><8>, <span class="keyword">public</span> <a class="code" href="class_fixed_key_length.html" title="to be inherited by keyed algorithms with fixed key length">FixedKeyLength</a><8><a name="l00026"></a>00026 {<a name="l00027"></a>00027 <span class="comment">// disable DES in DLL version by not exporting this function</span><a name="l00028"></a><a class="code" href="struct_d_e_s___info.html#3328113a7778dafd4cb56cf634189be9">00028</a> <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span> * <a class="code" href="struct_d_e_s___info.html#3328113a7778dafd4cb56cf634189be9">StaticAlgorithmName</a>() {<span class="keywordflow">return</span> <span class="stringliteral">"DES"</span>;}<a name="l00029"></a>00029 };<a name="l00030"></a>00030 <span class="comment"></span><a name="l00031"></a>00031 <span class="comment">/// <a href="http://www.weidai.com/scan-mirror/cs.html#DES">DES</a></span><a name="l00032"></a>00032 <span class="comment"></span><span class="comment">/*! The DES implementation in Crypto++ ignores the parity bits</span><a name="l00033"></a>00033 <span class="comment"> (the least significant bits of each byte) in the key. However</span><a name="l00034"></a>00034 <span class="comment"> you can use CheckKeyParityBits() and CorrectKeyParityBits() to</span><a name="l00035"></a>00035 <span class="comment"> check or correct the parity bits if you wish. */</span><a name="l00036"></a><a class="code" href="class_d_e_s.html">00036</a> <span class="keyword">class </span><a class="code" href="class_d_e_s.html" title="DES">DES</a> : <span class="keyword">public</span> <a class="code" href="struct_d_e_s___info.html" title="_">DES_Info</a>, <span class="keyword">public</span> <a class="code" href="struct_block_cipher_documentation.html" title="These objects usually should not be used directly. See CipherModeDocumentation instead...">BlockCipherDocumentation</a><a name="l00037"></a>00037 {<a name="l00038"></a>00038 <span class="keyword">class </span>CRYPTOPP_NO_VTABLE Base : <span class="keyword">public</span> <a class="code" href="class_block_cipher_impl.html">BlockCipherImpl</a><DES_Info>, <span class="keyword">public</span> <a class="code" href="class_raw_d_e_s.html">RawDES</a><a name="l00039"></a>00039 {<a name="l00040"></a>00040 <span class="keyword">public</span>:<a name="l00041"></a>00041 <span class="keywordtype">void</span> UncheckedSetKey(<span class="keyword">const</span> byte *userKey, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> length, <span class="keyword">const</span> <a class="code" href="class_name_value_pairs.html" title="interface for retrieving values given their names">NameValuePairs</a> &params);<a name="l00042"></a>00042 <span class="keywordtype">void</span> ProcessAndXorBlock(<span class="keyword">const</span> byte *inBlock, <span class="keyword">const</span> byte *xorBlock, byte *outBlock) <span class="keyword">const</span>;<a name="l00043"></a>00043 };<a name="l00044"></a>00044 <a name="l00045"></a>00045 <span class="keyword">public</span>:<span class="comment"></span><a name="l00046"></a>00046 <span class="comment"> //! check DES key parity bits</span><a name="l00047"></a>00047 <span class="comment"></span> <span class="keyword">static</span> <span class="keywordtype">bool</span> <a class="code" href="class_d_e_s.html#6f490a975dee8704a9c68771ce746335" title="check DES key parity bits">CheckKeyParityBits</a>(<span class="keyword">const</span> byte *key);<span class="comment"></span><a name="l00048"></a>00048 <span class="comment"> //! correct DES key parity bits</span><a name="l00049"></a>00049 <span class="comment"></span> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="class_d_e_s.html#b4b48b141706addb33c955c694dd9ead" title="correct DES key parity bits">CorrectKeyParityBits</a>(byte *key);<a name="l00050"></a>00050 <a name="l00051"></a><a class="code" href="class_d_e_s.html#cf2cdef8c9a64ca67a44117658890aa5">00051</a> <span class="keyword">typedef</span> <a class="code" href="class_block_cipher_final.html" title="_">BlockCipherFinal<ENCRYPTION, Base></a> <a class="code" href="class_block_cipher_final.html" title="_">Encryption</a>;<a name="l00052"></a><a class="code" href="class_d_e_s.html#546cc867f9dfab26d5a41a198f738503">00052</a> <span class="keyword">typedef</span> <a class="code" href="class_block_cipher_final.html" title="_">BlockCipherFinal<DECRYPTION, Base></a> <a class="code" href="class_block_cipher_final.html" title="_">Decryption</a>;<a name="l00053"></a>00053 };<a name="l00054"></a>00054 <span class="comment"></span><a name="l00055"></a>00055 <span class="comment">//! _</span><a name="l00056"></a><a class="code" href="struct_d_e_s___e_d_e2___info.html">00056</a> <span class="comment"></span><span class="keyword">struct </span><a class="code" href="struct_d_e_s___e_d_e2___info.html" title="_">DES_EDE2_Info</a> : <span class="keyword">public</span> <a class="code" href="class_fixed_block_size.html" title="to be inherited by block ciphers with fixed block size">FixedBlockSize</a><8>, <span class="keyword">public</span> <a class="code" href="class_fixed_key_length.html" title="to be inherited by keyed algorithms with fixed key length">FixedKeyLength</a><16><a name="l00057"></a>00057 {<a name="l00058"></a><a class="code" href="struct_d_e_s___e_d_e2___info.html#d1d6c39c1be012ac8bd0c87f4d1b25b5">00058</a> CRYPTOPP_DLL <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span> * CRYPTOPP_API <a class="code" href="struct_d_e_s___e_d_e2___info.html#d1d6c39c1be012ac8bd0c87f4d1b25b5">StaticAlgorithmName</a>() {<span class="keywordflow">return</span> <span class="stringliteral">"DES-EDE2"</span>;}<a name="l00059"></a>00059 };<a name="l00060"></a>00060 <span class="comment"></span><a name="l00061"></a>00061 <span class="comment">/// <a href="http://www.weidai.com/scan-mirror/cs.html#DESede">DES-EDE2</a></span><a name="l00062"></a><a class="code" href="class_d_e_s___e_d_e2.html">00062</a> <span class="comment"></span><span class="keyword">class </span><a class="code" href="class_d_e_s___e_d_e2.html" title="DES-EDE2">DES_EDE2</a> : <span class="keyword">public</span> <a class="code" href="struct_d_e_s___e_d_e2___info.html" title="_">DES_EDE2_Info</a>, <span class="keyword">public</span> <a class="code" href="struct_block_cipher_documentation.html" title="These objects usually should not be used directly. See CipherModeDocumentation instead...">BlockCipherDocumentation</a><a name="l00063"></a>00063 {<a name="l00064"></a>00064 <span class="keyword">class </span>CRYPTOPP_DLL CRYPTOPP_NO_VTABLE Base : <span class="keyword">public</span> <a class="code" href="class_block_cipher_impl.html">BlockCipherImpl</a><DES_EDE2_Info><a name="l00065"></a>00065 {⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -