672 lines
18 KiB
C++
672 lines
18 KiB
C++
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#include "des.h"
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#include "base/base_types.h"
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#include "base/util/string_util.h"
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// permuted choice table (PC1)
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const static char PC1_Table[56] = {
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57, 49, 41, 33, 25, 17, 9, 1, 58, 50, 42, 34, 26, 18,
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10, 2, 59, 51, 43, 35, 27, 19, 11, 3, 60, 52, 44, 36,
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63, 55, 47, 39, 31, 23, 15, 7, 62, 54, 46, 38, 30, 22,
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14, 6, 61, 53, 45, 37, 29, 21, 13, 5, 28, 20, 12, 4
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};
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// permuted choice key (PC2)
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const static char PC2_Table[48] = {
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14, 17, 11, 24, 1, 5, 3, 28, 15, 6, 21, 10,
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23, 19, 12, 4, 26, 8, 16, 7, 27, 20, 13, 2,
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41, 52, 31, 37, 47, 55, 30, 40, 51, 45, 33, 48,
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44, 49, 39, 56, 34, 53, 46, 42, 50, 36, 29, 32
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};
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// number left rotations of pc1
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const static char Shift_Table[16] = {
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1,1,2,2,2,2,2,2,1,2,2,2,2,2,2,1
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};
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// initial permutation (IP)
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const static char IP_Table[64] = {
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58, 50, 42, 34, 26, 18, 10, 2, 60, 52, 44, 36, 28, 20, 12, 4,
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62, 54, 46, 38, 30, 22, 14, 6, 64, 56, 48, 40, 32, 24, 16, 8,
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57, 49, 41, 33, 25, 17, 9, 1, 59, 51, 43, 35, 27, 19, 11, 3,
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61, 53, 45, 37, 29, 21, 13, 5, 63, 55, 47, 39, 31, 23, 15, 7
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};
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// expansion operation matrix (E)
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const static char E_Table[48] = {
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32, 1, 2, 3, 4, 5, 4, 5, 6, 7, 8, 9,
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8, 9, 10, 11, 12, 13, 12, 13, 14, 15, 16, 17,
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16, 17, 18, 19, 20, 21, 20, 21, 22, 23, 24, 25,
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24, 25, 26, 27, 28, 29, 28, 29, 30, 31, 32, 1
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};
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// The (in)famous S-boxes
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const static char S_Box[8][4][16] = {
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// S1
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14, 4, 13, 1, 2, 15, 11, 8, 3, 10, 6, 12, 5, 9, 0, 7,
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0, 15, 7, 4, 14, 2, 13, 1, 10, 6, 12, 11, 9, 5, 3, 8,
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4, 1, 14, 8, 13, 6, 2, 11, 15, 12, 9, 7, 3, 10, 5, 0,
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15, 12, 8, 2, 4, 9, 1, 7, 5, 11, 3, 14, 10, 0, 6, 13,
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// S2
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15, 1, 8, 14, 6, 11, 3, 4, 9, 7, 2, 13, 12, 0, 5, 10,
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3, 13, 4, 7, 15, 2, 8, 14, 12, 0, 1, 10, 6, 9, 11, 5,
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0, 14, 7, 11, 10, 4, 13, 1, 5, 8, 12, 6, 9, 3, 2, 15,
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13, 8, 10, 1, 3, 15, 4, 2, 11, 6, 7, 12, 0, 5, 14, 9,
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// S3
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10, 0, 9, 14, 6, 3, 15, 5, 1, 13, 12, 7, 11, 4, 2, 8,
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13, 7, 0, 9, 3, 4, 6, 10, 2, 8, 5, 14, 12, 11, 15, 1,
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13, 6, 4, 9, 8, 15, 3, 0, 11, 1, 2, 12, 5, 10, 14, 7,
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1, 10, 13, 0, 6, 9, 8, 7, 4, 15, 14, 3, 11, 5, 2, 12,
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// S4
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7, 13, 14, 3, 0, 6, 9, 10, 1, 2, 8, 5, 11, 12, 4, 15,
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13, 8, 11, 5, 6, 15, 0, 3, 4, 7, 2, 12, 1, 10, 14, 9,
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10, 6, 9, 0, 12, 11, 7, 13, 15, 1, 3, 14, 5, 2, 8, 4,
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3, 15, 0, 6, 10, 1, 13, 8, 9, 4, 5, 11, 12, 7, 2, 14,
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// S5
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2, 12, 4, 1, 7, 10, 11, 6, 8, 5, 3, 15, 13, 0, 14, 9,
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14, 11, 2, 12, 4, 7, 13, 1, 5, 0, 15, 10, 3, 9, 8, 6,
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4, 2, 1, 11, 10, 13, 7, 8, 15, 9, 12, 5, 6, 3, 0, 14,
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11, 8, 12, 7, 1, 14, 2, 13, 6, 15, 0, 9, 10, 4, 5, 3,
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// S6
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12, 1, 10, 15, 9, 2, 6, 8, 0, 13, 3, 4, 14, 7, 5, 11,
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10, 15, 4, 2, 7, 12, 9, 5, 6, 1, 13, 14, 0, 11, 3, 8,
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9, 14, 15, 5, 2, 8, 12, 3, 7, 0, 4, 10, 1, 13, 11, 6,
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4, 3, 2, 12, 9, 5, 15, 10, 11, 14, 1, 7, 6, 0, 8, 13,
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// S7
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4, 11, 2, 14, 15, 0, 8, 13, 3, 12, 9, 7, 5, 10, 6, 1,
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13, 0, 11, 7, 4, 9, 1, 10, 14, 3, 5, 12, 2, 15, 8, 6,
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1, 4, 11, 13, 12, 3, 7, 14, 10, 15, 6, 8, 0, 5, 9, 2,
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6, 11, 13, 8, 1, 4, 10, 7, 9, 5, 0, 15, 14, 2, 3, 12,
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// S8
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13, 2, 8, 4, 6, 15, 11, 1, 10, 9, 3, 14, 5, 0, 12, 7,
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1, 15, 13, 8, 10, 3, 7, 4, 12, 5, 6, 11, 0, 14, 9, 2,
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7, 11, 4, 1, 9, 12, 14, 2, 0, 6, 10, 13, 15, 3, 5, 8,
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2, 1, 14, 7, 4, 10, 8, 13, 15, 12, 9, 0, 3, 5, 6, 11
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};
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// 32-bit permutation function P used on the output of the S-boxes
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const static char P_Table[32] = {
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16, 7, 20, 21, 29, 12, 28, 17, 1, 15, 23, 26, 5, 18, 31, 10,
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2, 8, 24, 14, 32, 27, 3, 9, 19, 13, 30, 6, 22, 11, 4, 25
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};
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// final permutation IP^-1
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const static char IPR_Table[64] = {
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40, 8, 48, 16, 56, 24, 64, 32, 39, 7, 47, 15, 55, 23, 63, 31,
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38, 6, 46, 14, 54, 22, 62, 30, 37, 5, 45, 13, 53, 21, 61, 29,
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36, 4, 44, 12, 52, 20, 60, 28, 35, 3, 43, 11, 51, 19, 59, 27,
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34, 2, 42, 10, 50, 18, 58, 26, 33, 1, 41, 9, 49, 17, 57, 25
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};
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std::string yxDES::Decrypt(const std::string &src, const char* key, int iMode,int iPKCS)
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{
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std::string des;
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yxDES de_des((int)src.size());
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de_des.SetModeAndPKCS(iMode,iPKCS);
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de_des.InitializeKey(key,0);
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de_des.DecryptAnyLength((char*)src.c_str(), (int)src.size(), 0);
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des = de_des.GetPlaintextAnyLength();
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return des;
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}
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std::string yxDES::Encrypt(const std::string &src, const char* key, int iMode,int iPKCS)
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{
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std::string des;
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yxDES en_des((int)src.size());
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en_des.SetModeAndPKCS(iMode,iPKCS);
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en_des.InitializeKey(key,0);
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char* src_ch = new char[src.size()];
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memcpy(src_ch, src.c_str(), sizeof(char) * src.size());
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en_des.EncryptAnyLength(src_ch,(int)src.size(),0);
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des.append(en_des.GetCiphertextAnyLength(), en_des.m_iLength);
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delete[] src_ch;
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return des;
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}
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yxDES::yxDES(int length)
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{
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data_base_length_ = length*2+16;
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szFCiphertextAnyLength = new char[data_base_length_];
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szFPlaintextAnyLength = new char[data_base_length_];
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szCiphertextData = new char[data_base_length_];
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hexCiphertextAnyLength = new char[data_base_length_*2];
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memset(szCiphertextRaw,0,64);
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memset(szPlaintextRaw,0,64);
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memset(szCiphertextInBytes,0,8);
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memset(szPlaintextInBytes,0,8);
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memset(szCiphertextInBinary,0,65);
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memset(szCiphertextInHex,0,17);
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memset(szPlaintext,0,9);
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memset(szFCiphertextAnyLength,0,data_base_length_);
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memset(szFPlaintextAnyLength,0,data_base_length_);
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memset(szCiphertextData,0,data_base_length_);
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memset(hexCiphertextAnyLength,0,data_base_length_*2);
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memset(sziv,0x0,8);
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for(int i = 0;i < 8;i++)
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{
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sziv[i] = 0;
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szivRev[i] = 0;
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}
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m_iMode = 0;
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m_iPkcs = 0;
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}
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yxDES::~yxDES()
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{
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delete[] szFCiphertextAnyLength;
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delete[] szFPlaintextAnyLength;
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delete[] szCiphertextData;
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delete[] hexCiphertextAnyLength;
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}
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void yxDES::InitializeKey(const char* srcBytes,unsigned int keyN)
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{
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//convert 8 char-bytes key to 64 binary-bits
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char sz_64key[64] = {0};
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Bytes2Bits(srcBytes,sz_64key,64);
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//PC 1
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char sz_56key[56] = {0};
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for(int k=0;k<56;k++)
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{
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sz_56key[k] = sz_64key[PC1_Table[k]-1];
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}
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CreateSubKey(sz_56key,keyN);
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}
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void yxDES::CreateSubKey(char* sz_56key,unsigned int keyN)
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{
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char szTmpL[28] = {0};
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char szTmpR[28] = {0};
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char szCi[28] = {0};
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char szDi[28] = {0};
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memcpy(szTmpL,sz_56key,28);
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memcpy(szTmpR,sz_56key + 28,28);
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for(int i=0;i<16;i++)
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{
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//shift to left
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//Left 28 bits
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memcpy(szCi,szTmpL + Shift_Table[i],28 - Shift_Table[i]);
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memcpy(szCi + 28 - Shift_Table[i],szTmpL,Shift_Table[i]);
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//Right 28 bits
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memcpy(szDi,szTmpR + Shift_Table[i],28 - Shift_Table[i]);
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memcpy(szDi + 28 - Shift_Table[i],szTmpR,Shift_Table[i]);
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//permuted choice 48 bits key
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char szTmp56[56] = {0};
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memcpy(szTmp56,szCi,28);
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memcpy(szTmp56 + 28,szDi,28);
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for(int j=0;j<48;j++)
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{
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szSubKeys[keyN][i][j] = szTmp56[PC2_Table[j]-1];
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}
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//Evaluate new szTmpL and szTmpR
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memcpy(szTmpL,szCi,28);
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memcpy(szTmpR,szDi,28);
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}
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}
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void yxDES::EncryptData(char* _srcBytes,unsigned int keyN)
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{
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char temp[8];
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memset(temp,0x0,8);
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if(1 == m_iMode)//cbc
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{
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XOR(_srcBytes,sziv,8,temp);
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memcpy(_srcBytes,temp,8);
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}
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char szSrcBits[64] = {0};
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char sz_IP[64] = {0};
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char sz_Li[32] = {0};
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char sz_Ri[32] = {0};
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char sz_Final64[64] = {0};
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Bytes2Bits(_srcBytes,szSrcBits,64);
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//IP
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InitialPermuteData(szSrcBits,sz_IP);
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memcpy(sz_Li,sz_IP,32);
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memcpy(sz_Ri,sz_IP + 32,32);
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for(int i=0;i<16;i++)
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{
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FunctionF(sz_Li,sz_Ri,i,keyN);
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}
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//so D=LR
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memcpy(sz_Final64,sz_Ri,32);
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memcpy(sz_Final64 + 32,sz_Li,32);
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//~IP
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for(int j=0;j<64;j++)
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{
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szCiphertextRaw[j] = sz_Final64[IPR_Table[j]-1];
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}
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Bits2Bytes(szCiphertextInBytes,szCiphertextRaw,64);
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if(1 == m_iMode)//cbc
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{
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memcpy(sziv,szCiphertextInBytes,8);
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}
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}
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void yxDES::DecryptData(char* _srcBytes,unsigned int keyN)
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{
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char temp[8];
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char tempszivRev[8];
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memset(temp,0x0,8);
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memset(tempszivRev,0x0,8);
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if(1 == m_iMode)//cbc
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{
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memcpy(tempszivRev,_srcBytes,8);
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}
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char szSrcBits[64] = {0};
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char sz_IP[64] = {0};
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char sz_Li[32] = {0};
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char sz_Ri[32] = {0};
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char sz_Final64[64] = {0};
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Bytes2Bits(_srcBytes,szSrcBits,64);
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//IP --- return is sz_IP
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InitialPermuteData(szSrcBits,sz_IP);
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//divide the 64 bits data to two parts
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memcpy(sz_Ri,sz_IP,32); //exchange L to R
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memcpy(sz_Li,sz_IP + 32,32); //exchange R to L
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//16 rounds F and xor and exchange
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for(int i=0;i<16;i++)
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{
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FunctionF(sz_Ri,sz_Li,15-i,keyN);
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}
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memcpy(sz_Final64,sz_Li,32);
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memcpy(sz_Final64 + 32,sz_Ri,32);
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// ~IP
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for(int j=0;j<64;j++)
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{
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szPlaintextRaw[j] = sz_Final64[IPR_Table[j]-1];
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}
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Bits2Bytes(szPlaintextInBytes,szPlaintextRaw,64);
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if(1 == m_iMode)//cbc
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{
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XOR(szPlaintextInBytes,szivRev,8,temp);
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memcpy(szPlaintextInBytes,temp,8);
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memcpy(szivRev,tempszivRev,8);
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}
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}
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void yxDES::FunctionF(char* sz_Li,char* sz_Ri,unsigned int iKey,unsigned int keyN)
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{
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char sz_48R[48] = {0};
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char sz_xor48[48] = {0};
|
|||
|
|
char sz_P32[32] = {0};
|
|||
|
|
char sz_Rii[32] = {0};
|
|||
|
|
char sz_Key[48] = {0};
|
|||
|
|
char s_Compress32[32] = {0};
|
|||
|
|
memcpy(sz_Key,szSubKeys[keyN][iKey],48);
|
|||
|
|
ExpansionR(sz_Ri,sz_48R);
|
|||
|
|
XOR(sz_48R,sz_Key,48,sz_xor48);
|
|||
|
|
|
|||
|
|
CompressFuncS(sz_xor48,s_Compress32);
|
|||
|
|
PermutationP(s_Compress32,sz_P32);
|
|||
|
|
XOR(sz_P32,sz_Li,32,sz_Rii);
|
|||
|
|
memcpy(sz_Li,sz_Ri,32);
|
|||
|
|
memcpy(sz_Ri,sz_Rii,32);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
void yxDES::InitialPermuteData(char* _src,char* _dst)
|
|||
|
|
{
|
|||
|
|
//IP
|
|||
|
|
for(int i=0;i<64;i++)
|
|||
|
|
{
|
|||
|
|
_dst[i] = _src[IP_Table[i]-1];
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
void yxDES::ExpansionR(char* _src,char* _dst)
|
|||
|
|
{
|
|||
|
|
for(int i=0;i<48;i++)
|
|||
|
|
{
|
|||
|
|
_dst[i] = _src[E_Table[i]-1];
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
void yxDES::XOR(char* szParam1,char* szParam2, unsigned int uiParamLength, char* szReturnValueBuffer)
|
|||
|
|
{
|
|||
|
|
for(unsigned int i=0; i<uiParamLength; i++)
|
|||
|
|
{
|
|||
|
|
szReturnValueBuffer[i] = szParam1[i] ^ szParam2[i];
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
void yxDES::CompressFuncS(char* _src48, char* _dst32)
|
|||
|
|
{
|
|||
|
|
char bTemp[8][6]={0};
|
|||
|
|
char dstBits[4]={0};
|
|||
|
|
for(int i=0;i<8;i++)
|
|||
|
|
{
|
|||
|
|
memcpy(bTemp[i],_src48+i*6,6);
|
|||
|
|
int iX = (bTemp[i][0])*2 + (bTemp[i][5]);
|
|||
|
|
int iY = 0;
|
|||
|
|
for(int j=1;j<5;j++)
|
|||
|
|
{
|
|||
|
|
iY += bTemp[i][j]<<(4-j);
|
|||
|
|
}
|
|||
|
|
Int2Bits(S_Box[i][iX][iY], dstBits);
|
|||
|
|
memcpy(_dst32 + i * 4, dstBits, 4);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
void yxDES::PermutationP(char* _src,char* _dst)
|
|||
|
|
{
|
|||
|
|
for(int i=0;i<32;i++)
|
|||
|
|
{
|
|||
|
|
_dst[i] = _src[P_Table[i]-1];
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
void yxDES::Bytes2Bits(const char *srcBytes, char* dstBits, unsigned int sizeBits)
|
|||
|
|
{
|
|||
|
|
for(unsigned int i=0; i < sizeBits; i++)
|
|||
|
|
dstBits[i] = ((srcBytes[i>>3]<<(i&7)) & 128)>>7;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
void yxDES::Bits2Bytes(char *dstBytes, char* srcBits, unsigned int sizeBits)
|
|||
|
|
{
|
|||
|
|
memset(dstBytes,0,sizeBits>>3);
|
|||
|
|
for(unsigned int i=0; i < sizeBits; i++)
|
|||
|
|
dstBytes[i>>3] |= (srcBits[i] << (7 - (i & 7)));
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
void yxDES::Int2Bits(unsigned int _src, char* dstBits)
|
|||
|
|
{
|
|||
|
|
for(unsigned int i=0; i < 4; i++)
|
|||
|
|
dstBits[i] = ((_src<<i) & 8)>>3;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
void yxDES::Bits2Hex(char *dstHex, char* srcBits, unsigned int sizeBits)
|
|||
|
|
{
|
|||
|
|
memset(dstHex,0,sizeBits>>2);
|
|||
|
|
for(unsigned int i=0; i < sizeBits; i++) //convert to int 0-15
|
|||
|
|
dstHex[i>>2] += (srcBits[i] << (3 - (i & 3)));
|
|||
|
|
for(unsigned int j=0;j < (sizeBits>>2);j++)
|
|||
|
|
dstHex[j] += dstHex[j] > 9 ? 55 : 48; //convert to char '0'-'F'
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
void yxDES::Hex2Bits(char *srcHex, char* dstBits, unsigned int sizeBits)
|
|||
|
|
{
|
|||
|
|
memset(dstBits,0,sizeBits);
|
|||
|
|
for(unsigned int i=0;i < (sizeBits>>2);i++)
|
|||
|
|
srcHex[i] -= srcHex[i] > 64 ? 55 : 48; //convert to char int 0-15
|
|||
|
|
for(unsigned int j=0; j < sizeBits; j++)
|
|||
|
|
dstBits[j] = ((srcHex[j>>2]<<(j&3)) & 15) >> 3;
|
|||
|
|
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
char* yxDES::GetCiphertextInBinary()
|
|||
|
|
{
|
|||
|
|
for(unsigned int i=0;i<64;i++)
|
|||
|
|
{
|
|||
|
|
szCiphertextInBinary[i] = szCiphertextRaw[i] + 48; // from int(0) to char('0') and int1 to char('1')
|
|||
|
|
}
|
|||
|
|
szCiphertextInBinary[64] = '\0';
|
|||
|
|
return szCiphertextInBinary;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
char* yxDES::GetCiphertextInHex()
|
|||
|
|
{
|
|||
|
|
Bits2Hex(szCiphertextInHex,szCiphertextRaw,64);
|
|||
|
|
szCiphertextInHex[16] = '\0';
|
|||
|
|
return szCiphertextInHex;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
char* yxDES::GetCiphertextInBytes()
|
|||
|
|
{
|
|||
|
|
return szCiphertextInBytes;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
char* yxDES::GetPlaintext()
|
|||
|
|
{
|
|||
|
|
memcpy(szPlaintext,szPlaintextInBytes,8);
|
|||
|
|
szPlaintext[8] = '\0';
|
|||
|
|
return szPlaintext;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
char* yxDES::GetCiphertextAnyLength()
|
|||
|
|
{
|
|||
|
|
return szFCiphertextAnyLength;
|
|||
|
|
}
|
|||
|
|
char* yxDES::GetPlaintextAnyLength()
|
|||
|
|
{
|
|||
|
|
if(1 == m_iPkcs)//cbcm_iMode
|
|||
|
|
{
|
|||
|
|
int iP = 0;
|
|||
|
|
int i = (int)strlen(szFPlaintextAnyLength);
|
|||
|
|
|
|||
|
|
while(iP < i)
|
|||
|
|
{
|
|||
|
|
char a = szFPlaintextAnyLength[iP];
|
|||
|
|
int ipos = (int)a;
|
|||
|
|
if(ipos>=1 && ipos <=8)
|
|||
|
|
{
|
|||
|
|
char* temp = NULL;
|
|||
|
|
temp = (char*)malloc(iP);
|
|||
|
|
if (temp)
|
|||
|
|
{
|
|||
|
|
memset(temp,0x0,iP);
|
|||
|
|
memcpy(temp,szFPlaintextAnyLength,iP);
|
|||
|
|
memset(szFPlaintextAnyLength,0x0,data_base_length_);
|
|||
|
|
memcpy(szFPlaintextAnyLength,temp,iP);
|
|||
|
|
free(temp);
|
|||
|
|
}
|
|||
|
|
break;
|
|||
|
|
}
|
|||
|
|
iP++;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
return szFPlaintextAnyLength;
|
|||
|
|
}
|
|||
|
|
//char* yxDES::GetPlaintextAnyLength()
|
|||
|
|
//{
|
|||
|
|
// if(1 == m_iMode)//cbc
|
|||
|
|
// {
|
|||
|
|
// int i = strlen(szFPlaintextAnyLength);
|
|||
|
|
// char a = szFPlaintextAnyLength[i-1];
|
|||
|
|
// int ipos = (int)a;
|
|||
|
|
// if(ipos>=1 && ipos <=8)
|
|||
|
|
// {
|
|||
|
|
// char* temp = NULL;
|
|||
|
|
// temp = (char*)malloc(i-ipos);
|
|||
|
|
// memset(temp,0x0,i-ipos);
|
|||
|
|
// memcpy(temp,szFPlaintextAnyLength,i-ipos);
|
|||
|
|
// memset(szFPlaintextAnyLength,0x0,data_base_length_);
|
|||
|
|
// memcpy(szFPlaintextAnyLength,temp,i-ipos);
|
|||
|
|
// free(temp);
|
|||
|
|
// }
|
|||
|
|
// }
|
|||
|
|
// return szFPlaintextAnyLength;
|
|||
|
|
//}
|
|||
|
|
|
|||
|
|
void yxDES::EncryptAnyLength(char* _srcBytes,unsigned int _bytesLength,unsigned int keyN)
|
|||
|
|
{
|
|||
|
|
m_iLength = _bytesLength;
|
|||
|
|
if(_bytesLength == 8)
|
|||
|
|
{
|
|||
|
|
char _temp8bytes[8] = {0};
|
|||
|
|
EncryptData(_srcBytes,keyN);
|
|||
|
|
memcpy(szFCiphertextAnyLength,szCiphertextInBytes,8);
|
|||
|
|
|
|||
|
|
//PKCS5
|
|||
|
|
if(1 == m_iPkcs)
|
|||
|
|
{
|
|||
|
|
m_iLength = _bytesLength*2;
|
|||
|
|
memset(_temp8bytes,8,8);
|
|||
|
|
EncryptData(_temp8bytes,keyN);
|
|||
|
|
memcpy(szFCiphertextAnyLength+8,szCiphertextInBytes,8);
|
|||
|
|
szFCiphertextAnyLength[16] = '\0';
|
|||
|
|
}
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
szFCiphertextAnyLength[8] = '\0';
|
|||
|
|
}
|
|||
|
|
//end
|
|||
|
|
}
|
|||
|
|
else if(_bytesLength < 8)
|
|||
|
|
{
|
|||
|
|
int iLeave = 8 - _bytesLength;
|
|||
|
|
char _temp8bytes[8] = {0};
|
|||
|
|
memcpy(_temp8bytes,_srcBytes,_bytesLength);
|
|||
|
|
//PKCS5
|
|||
|
|
if(1 == m_iPkcs)
|
|||
|
|
{
|
|||
|
|
for(unsigned int i = 0;i < 8;i++)
|
|||
|
|
{
|
|||
|
|
if(i >= _bytesLength)
|
|||
|
|
{
|
|||
|
|
_temp8bytes[i] = iLeave;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
m_iLength += iLeave;
|
|||
|
|
//end
|
|||
|
|
EncryptData(_temp8bytes,keyN);
|
|||
|
|
memcpy(szFCiphertextAnyLength,szCiphertextInBytes,8);
|
|||
|
|
szFCiphertextAnyLength[8] = '\0';
|
|||
|
|
}
|
|||
|
|
else if(_bytesLength > 8)
|
|||
|
|
{
|
|||
|
|
|
|||
|
|
int iParts = _bytesLength>>3;
|
|||
|
|
int iResidue = _bytesLength % 8;
|
|||
|
|
int iLeave = 8 - iResidue;
|
|||
|
|
|
|||
|
|
char szLast8Bits[8] = {0};
|
|||
|
|
for(int i=0;i<iParts;i++)
|
|||
|
|
{
|
|||
|
|
memcpy(szLast8Bits,_srcBytes + (i<<3),8);
|
|||
|
|
EncryptData(szLast8Bits,keyN);
|
|||
|
|
memcpy(szFCiphertextAnyLength + (i<<3),szCiphertextInBytes,8);
|
|||
|
|
}
|
|||
|
|
memset(szLast8Bits,0,8);
|
|||
|
|
memcpy(szLast8Bits,_srcBytes + (iParts<<3),iResidue);
|
|||
|
|
//PKCS5
|
|||
|
|
if(1 == m_iPkcs)
|
|||
|
|
{
|
|||
|
|
for(int i = 0;i < 8;i++)
|
|||
|
|
{
|
|||
|
|
if(i >= iResidue)
|
|||
|
|
{
|
|||
|
|
szLast8Bits[i] = iLeave;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
m_iLength += iLeave;
|
|||
|
|
//end
|
|||
|
|
EncryptData(szLast8Bits,keyN);
|
|||
|
|
memcpy(szFCiphertextAnyLength + (iParts<<3),szCiphertextInBytes,8);
|
|||
|
|
szFCiphertextAnyLength[((iParts+1)<<3)] = '\0';
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
void yxDES::DecryptAnyLength(char* _srcBytes,unsigned int _bytesLength, unsigned int keyN)
|
|||
|
|
{
|
|||
|
|
|
|||
|
|
if(_bytesLength == 8)
|
|||
|
|
{
|
|||
|
|
DecryptData(_srcBytes,keyN);
|
|||
|
|
memcpy(szFPlaintextAnyLength,szPlaintextInBytes,8);
|
|||
|
|
szFPlaintextAnyLength[8] = '\0';
|
|||
|
|
}
|
|||
|
|
else if(_bytesLength < 8)
|
|||
|
|
{
|
|||
|
|
char _temp8bytes[8] = {0};
|
|||
|
|
memcpy(_temp8bytes,_srcBytes,8);
|
|||
|
|
DecryptData(_temp8bytes,keyN);
|
|||
|
|
memcpy(szFPlaintextAnyLength,szPlaintextInBytes,_bytesLength);
|
|||
|
|
szFPlaintextAnyLength[_bytesLength] = '\0';
|
|||
|
|
}
|
|||
|
|
else if(_bytesLength > 8)
|
|||
|
|
{
|
|||
|
|
int iParts = _bytesLength>>3;
|
|||
|
|
int iResidue = _bytesLength % 8;
|
|||
|
|
char szLast8Bits[8] = {0};
|
|||
|
|
for(int i=0;i<iParts;i++)
|
|||
|
|
{
|
|||
|
|
memcpy(szLast8Bits,_srcBytes + (i<<3),8);
|
|||
|
|
DecryptData(szLast8Bits,keyN);
|
|||
|
|
memcpy(szFPlaintextAnyLength + (i<<3),szPlaintextInBytes,8);
|
|||
|
|
}
|
|||
|
|
if(iResidue != 0)
|
|||
|
|
{
|
|||
|
|
memset(szLast8Bits,0,8);
|
|||
|
|
memcpy(szLast8Bits,_srcBytes + (iParts<<3),8);
|
|||
|
|
DecryptData(szLast8Bits,keyN);
|
|||
|
|
memcpy(szFPlaintextAnyLength + (iParts<<3),szPlaintextInBytes,iResidue);
|
|||
|
|
}
|
|||
|
|
szFPlaintextAnyLength[_bytesLength] = '\0';
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
//<2F>ַ<EFBFBD><D6B7><EFBFBD>ת16<31><36><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD>
|
|||
|
|
void yxDES::ConvertCiphertext2Hex(char *szPlainInBytes)
|
|||
|
|
{
|
|||
|
|
if (!szPlainInBytes)
|
|||
|
|
{
|
|||
|
|
return;
|
|||
|
|
}
|
|||
|
|
//int iBitsLen = strlen(szPlainInBytes) % 8 == 0 ? strlen(szPlainInBytes) << 3 : ((strlen(szPlainInBytes)>>3) + 1) << 6;
|
|||
|
|
int iBitsLen = m_iLength % 8 == 0 ? m_iLength << 3 : ((m_iLength>>3) + 1) << 6;
|
|||
|
|
char* bitsCiphertextAnyLength = new char[data_base_length_*4];
|
|||
|
|
memset(bitsCiphertextAnyLength,0,data_base_length_*4);
|
|||
|
|
Bytes2Bits(szFCiphertextAnyLength,bitsCiphertextAnyLength,iBitsLen);
|
|||
|
|
Bits2Hex(hexCiphertextAnyLength,bitsCiphertextAnyLength,iBitsLen);
|
|||
|
|
delete[] bitsCiphertextAnyLength;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
//16<31><36><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD>ַ<EFBFBD><D6B7><EFBFBD>
|
|||
|
|
int yxDES::ConvertHex2Ciphertext(const char *szCipherInBytes)
|
|||
|
|
{
|
|||
|
|
char* bitsTmpCiphertextAnyLength = new char[data_base_length_*4];
|
|||
|
|
char* hexTmpCiphertextAnyLength = new char[data_base_length_*2];
|
|||
|
|
|
|||
|
|
int iLen = 0;
|
|||
|
|
|
|||
|
|
memset(szCiphertextData,0,data_base_length_);
|
|||
|
|
memset(hexTmpCiphertextAnyLength,0,data_base_length_*2);
|
|||
|
|
|
|||
|
|
|
|||
|
|
iLen = (((int)strlen(szCipherInBytes)>>2) + ((int)strlen(szCipherInBytes) % 4 == 0 ? 0 : 1))<<4;
|
|||
|
|
|
|||
|
|
memcpy(hexTmpCiphertextAnyLength,szCipherInBytes,strlen(szCipherInBytes));
|
|||
|
|
Hex2Bits(hexTmpCiphertextAnyLength,bitsTmpCiphertextAnyLength,iLen);
|
|||
|
|
Bits2Bytes(szCiphertextData,bitsTmpCiphertextAnyLength,iLen);
|
|||
|
|
|
|||
|
|
delete[] bitsTmpCiphertextAnyLength;
|
|||
|
|
delete[] hexTmpCiphertextAnyLength;
|
|||
|
|
|
|||
|
|
return iLen >>3;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
//CiphertextData<74><61><EFBFBD><EFBFBD>
|
|||
|
|
char* yxDES::GetCiphertextData()
|
|||
|
|
{
|
|||
|
|
return szCiphertextData;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
//hexCiphertextAnyLength<74><68><EFBFBD><EFBFBD>
|
|||
|
|
char* yxDES::GetHexCipherAnyLengthData()
|
|||
|
|
{
|
|||
|
|
return hexCiphertextAnyLength;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
//<2F><><EFBFBD><EFBFBD>:<3A><><EFBFBD>üӽ<C3BC><D3BD>ܺ<EFBFBD><DCBA><EFBFBD><EFBFBD><EFBFBD>ģʽ<C4A3><CABD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĭ<EFBFBD><C4AC>ģʽ<C4A3><CABD><EFBFBD><EFBFBD>0
|
|||
|
|
//<2F><><EFBFBD><EFBFBD>:<3A><><EFBFBD><EFBFBD>
|
|||
|
|
//<2F><><EFBFBD><EFBFBD>:<3A><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>int m_iMode<64><65>int m_iPkcs
|
|||
|
|
void yxDES::SetModeAndPKCS(int iMode/* = 0*/,int iPKCS/* = 0*/)
|
|||
|
|
{
|
|||
|
|
m_iMode = iMode;
|
|||
|
|
m_iPkcs = iPKCS;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
//<2F><><EFBFBD><EFBFBD>:<3A><><EFBFBD><EFBFBD>
|
|||
|
|
//<2F><><EFBFBD><EFBFBD>:8λ<38>ַ<EFBFBD><D6B7><EFBFBD>
|
|||
|
|
//<2F><><EFBFBD><EFBFBD>:<3A><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>char szvi[8]<5D><>char szviRev[8]
|
|||
|
|
void yxDES::SetIV(char* srcBytes)
|
|||
|
|
{
|
|||
|
|
memset(sziv,0x0,8);
|
|||
|
|
memset(szivRev,0x0,8);
|
|||
|
|
memcpy(sziv,srcBytes,8);
|
|||
|
|
memcpy(szivRev,srcBytes,8);
|
|||
|
|
}
|