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#pragma execution_character_set("utf-8")
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// DES.cpp: implementation of the DES class.
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//
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//////////////////////////////////////////////////////////////////////
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#include <string>
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#include <memory.h>
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#include "des.h"
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////////////////////////////////////////////////////////////////////////
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// initial permutation IP
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const 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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// final permutation IP^-1
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const 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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// expansion operation matrix
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const 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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// 32-bit permutation function P used on the output of the S-boxes
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const 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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// permuted choice table (key)
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const 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 (table)
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const 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 char LOOP_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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// The (in)famous S-boxes
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const 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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//DES::DES()
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//{
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// m_mode = DM_CBC;
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// m_pad_type = PT_ISO_1;
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//}
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DES::DES(DES_MODE mode, PAD_TYPE pad_type)
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{
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m_mode = mode;
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m_pad_type = pad_type;
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}
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DES::~DES()
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{
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}
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/*******************************************************************/
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/*
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<EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD>: ByteToBit
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<EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD>BYTEת<EFBFBD><EFBFBD>ΪBit<EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD> <EFBFBD><EFBFBD> ˵ <EFBFBD><EFBFBD><EFBFBD><EFBFBD> Out: <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Bit<EFBFBD><EFBFBD>[in][out]
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In: <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>BYTE<EFBFBD><EFBFBD>[in]
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bits: Bit<EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD><EFBFBD><EFBFBD>[in]
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ ˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD> void
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/*******************************************************************/
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void ByteToBit(bool *Out, const char *In, int bits)
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{
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for(int i=0; i<bits; ++i)
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Out[i] = (In[i>>3]>>(7 - i&7)) & 1;
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}
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/*******************************************************************/
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/*
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<EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD>: BitToByte
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<EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD>Bitת<EFBFBD><EFBFBD>ΪByte<EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD> <EFBFBD><EFBFBD> ˵ <EFBFBD><EFBFBD><EFBFBD><EFBFBD> Out: <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>BYTE<EFBFBD><EFBFBD>[in][out]
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In: <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Bit<EFBFBD><EFBFBD>[in]
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bits: Bit<EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD><EFBFBD><EFBFBD>[in]
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ ˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD> void
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/*******************************************************************/
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void BitToByte(char *Out, const bool *In, int bits)
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{
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memset(Out, 0, bits>>3);
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for(int i=0; i<bits; ++i)
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Out[i>>3] |= In[i]<<(7 - i&7);
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}
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/*******************************************************************/
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/*
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<EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD>: RotateL
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<EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD>BIT<EFBFBD><EFBFBD><EFBFBD><EFBFBD>λ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD> <EFBFBD><EFBFBD> ˵ <EFBFBD><EFBFBD><EFBFBD><EFBFBD> In: <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Bit<EFBFBD><EFBFBD>[in]
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len: Bit<EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD><EFBFBD><EFBFBD>[in]
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loop: <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD><EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ ˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD> void
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/*******************************************************************/
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void RotateL(bool *In, int len, int loop)
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{
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bool Tmp[256];
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memcpy(Tmp, In, loop);
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memcpy(In, In+loop, len-loop);
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memcpy(In+len-loop, Tmp, loop);
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}
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/*******************************************************************/
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/*
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<EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD>: Xor
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<EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Bit<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD> <EFBFBD><EFBFBD> ˵ <EFBFBD><EFBFBD><EFBFBD><EFBFBD> InA: <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Bit<EFBFBD><EFBFBD>[in][out]
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InB: <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Bit<EFBFBD><EFBFBD>[in]
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loop: Bit<EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD><EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ ˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD> void
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/*******************************************************************/
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void Xor(bool *InA, const bool *InB, int len)
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{
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for(int i=0; i<len; ++i)
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InA[i] ^= InB[i];
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}
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/*******************************************************************/
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/*
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<EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD>: Transform
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<EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Bit<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>λת<EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD> <EFBFBD><EFBFBD> ˵ <EFBFBD><EFBFBD><EFBFBD><EFBFBD> Out: <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Bit<EFBFBD><EFBFBD>[out]
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In: <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Bit<EFBFBD><EFBFBD>[in]
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Table: ת<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>ı<EFBFBD>ָ<EFBFBD><EFBFBD>
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len: ת<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD><EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ ˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD> void
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/*******************************************************************/
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void Transform(bool *Out, bool *In, const char *Table, int len)
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{
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bool Tmp[256];
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for(int i=0; i<len; ++i)
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Tmp[i] = In[ Table[i]-1 ];
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memcpy(Out, Tmp, len);
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}
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/*******************************************************************/
|
|
|
|
|
|
/*
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|
|
<EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD>: S_func
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|
<EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD> ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݼ<EFBFBD><EFBFBD><EFBFBD>S BOXģ<EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD> <EFBFBD><EFBFBD> ˵ <EFBFBD><EFBFBD><EFBFBD><EFBFBD> Out: <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>32Bit[out]
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In: <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>48Bit[in]
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ ˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD> void
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|
|
|
/*******************************************************************/
|
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|
|
void S_func(bool Out[32], const bool In[48])
|
|
|
|
|
|
{
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|
for(char i=0,j,k; i<8; ++i,In+=6,Out+=4)
|
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|
|
{
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|
|
j = (In[0]<<1) + In[5];
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|
k = (In[1]<<3) + (In[2]<<2) + (In[3]<<1) + In[4]; //<2F><>֯SID<49>±<EFBFBD>
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|
|
for(int l=0; l<4; ++l) //<2F><><EFBFBD><EFBFBD>Ӧ4bit<69><74>ֵ
|
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|
Out[l] = (S_Box[i][j][k]>>(3 - l)) & 1;
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|
}
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|
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|
|
|
}
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|
|
/*******************************************************************/
|
|
|
|
|
|
/*
|
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|
|
<EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD>: F_func
|
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|
|
|
<EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD> ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݼ<EFBFBD><EFBFBD>ܵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>P
|
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|
|
<EFBFBD><EFBFBD> <EFBFBD><EFBFBD> ˵ <EFBFBD><EFBFBD><EFBFBD><EFBFBD> Out: <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>32Bit[out]
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|
|
In: <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>48Bit[in]
|
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|
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ ˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD> void
|
|
|
|
|
|
/*******************************************************************/
|
|
|
|
|
|
void F_func(bool In[32], const bool Ki[48])
|
|
|
|
|
|
{
|
|
|
|
|
|
bool MR[48];
|
|
|
|
|
|
Transform(MR, In, E_Table, 48);
|
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|
|
Xor(MR, Ki, 48);
|
|
|
|
|
|
S_func(In, MR);
|
|
|
|
|
|
Transform(In, In, P_Table, 32);
|
|
|
|
|
|
}
|
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|
|
bool DES::Encrypt(char *in, unsigned int inLen, const char *key, unsigned char keyLen, char *out)
|
|
|
|
|
|
{
|
|
|
|
|
|
std::string s(in, inLen);
|
|
|
|
|
|
|
|
|
|
|
|
RunPad(s);
|
|
|
|
|
|
|
|
|
|
|
|
//return RunDes(DT_ENCRYPT, in, inLen, key, keyLen, out);
|
|
|
|
|
|
return RunDes(DT_ENCRYPT, s.c_str(), s.length(), key, keyLen, out);
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
bool DES::Decrypt(char *in, unsigned int inLen, const char *key, unsigned char keyLen, char *out)
|
|
|
|
|
|
{
|
|
|
|
|
|
std::string s(in, inLen);
|
|
|
|
|
|
|
|
|
|
|
|
RunPad(s);
|
|
|
|
|
|
|
|
|
|
|
|
//return RunDes(DT_DECRYPT, in, inLen, key, keyLen, out);
|
|
|
|
|
|
return RunDes(DT_DECRYPT, s.c_str(), s.length(), key, keyLen, out);
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*******************************************************************/
|
|
|
|
|
|
/*
|
|
|
|
|
|
<EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD>: RunDes
|
|
|
|
|
|
<EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD> ִ<EFBFBD><EFBFBD>DES<EFBFBD>㷨<EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD><EFBFBD>ӽ<EFBFBD><EFBFBD><EFBFBD>
|
|
|
|
|
|
<EFBFBD><EFBFBD> <EFBFBD><EFBFBD> ˵ <EFBFBD><EFBFBD><EFBFBD><EFBFBD> desType :<EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ENCRYPT<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>DECRYPT
|
|
|
|
|
|
in :<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܴ<EFBFBD>ָ<EFBFBD><EFBFBD>
|
|
|
|
|
|
inLen :<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܴ<EFBFBD><EFBFBD>ij<EFBFBD><EFBFBD>ȣ<EFBFBD>ͬʱOut<EFBFBD>Ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>СӦ<EFBFBD><EFBFBD><EFBFBD>ڻ<EFBFBD><EFBFBD>ߵ<EFBFBD><EFBFBD><EFBFBD>datalen
|
|
|
|
|
|
key :<EFBFBD><EFBFBD>Կ(<EFBFBD><EFBFBD>Ϊ8λ,16λ,24λ)֧<EFBFBD><EFBFBD>3<EFBFBD><EFBFBD>Կ
|
|
|
|
|
|
keyLen :<EFBFBD><EFBFBD>Կ<EFBFBD><EFBFBD><EFBFBD>ȣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>24λ<EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD><EFBFBD>ü<EFBFBD>
|
|
|
|
|
|
out :<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD>
|
|
|
|
|
|
|
|
|
|
|
|
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ ˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD> bool :<EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܳɹ<EFBFBD>
|
|
|
|
|
|
/*******************************************************************/
|
|
|
|
|
|
//bool DES::RunDes(DES_TYPE desType,char* In,char* Out,unsigned datalen,const char* Key,const unsigned char keylen)
|
|
|
|
|
|
bool DES::RunDes(DES_TYPE desType, const char* in,unsigned int inLen, const char* key,const unsigned char keyLen, char* out)
|
|
|
|
|
|
{
|
|
|
|
|
|
//<2F>ж<EFBFBD><D0B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϸ<EFBFBD><CFB7><EFBFBD>
|
|
|
|
|
|
if(!(in && out && key && inLen && keyLen>=8))
|
|
|
|
|
|
{
|
|
|
|
|
|
return false;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
//ֻ<><D6BB><EFBFBD><EFBFBD>8<EFBFBD><38><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㳤<EFBFBD><E3B3A4><EFBFBD>Լ<EFBFBD><D4BC><EFBFBD><EFBFBD><EFBFBD>
|
|
|
|
|
|
if(inLen & 0x00000007)
|
|
|
|
|
|
return false;
|
|
|
|
|
|
|
|
|
|
|
|
bool m_SubKey[3][16][48]; //<2F><>Կ
|
|
|
|
|
|
//<2F><><EFBFBD>첢<EFBFBD><ECB2A2><EFBFBD><EFBFBD>SubKeys
|
|
|
|
|
|
unsigned char nKey = (keyLen>>3)>3 ? 3: (keyLen>>3);
|
|
|
|
|
|
for(int i=0; i < nKey; i++)
|
|
|
|
|
|
{
|
|
|
|
|
|
SetSubKey(&m_SubKey[i], &key[i<<3]);
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
if(m_mode == DM_ECB) //ECBģʽ
|
|
|
|
|
|
{
|
|
|
|
|
|
if(nKey == 1) //<2F><>Key
|
|
|
|
|
|
{
|
|
|
|
|
|
for(int i = 0, j = inLen >> 3; i<j; ++i, out += 8, in += 8)
|
|
|
|
|
|
{
|
|
|
|
|
|
Des(out, in, &m_SubKey[0], desType);
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
else if(nKey == 2) //3DES 2Key
|
|
|
|
|
|
{
|
|
|
|
|
|
for(int i = 0, j = inLen >> 3; i<j; ++i, out += 8, in += 8)
|
|
|
|
|
|
{
|
|
|
|
|
|
Des(out, in, &m_SubKey[0], desType);
|
|
|
|
|
|
Des(out, out, &m_SubKey[1], ((desType == DT_ENCRYPT) ? (DT_DECRYPT) : (DT_ENCRYPT)));
|
|
|
|
|
|
Des(out, out, &m_SubKey[0], desType);
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
else //3DES 3Key
|
|
|
|
|
|
{
|
|
|
|
|
|
for(int i = 0, j = inLen >> 3; i<j; ++i, out += 8, in += 8)
|
|
|
|
|
|
{
|
|
|
|
|
|
Des(out, in, &m_SubKey[desType ? 2 : 0], desType);
|
|
|
|
|
|
Des(out, out, &m_SubKey[1], ((desType == DT_ENCRYPT) ? (DT_DECRYPT) : (DT_ENCRYPT)));
|
|
|
|
|
|
Des(out, out, &m_SubKey[desType ? 0 : 2], desType);
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
else //CBCģʽ
|
|
|
|
|
|
{
|
|
|
|
|
|
char cvec[8] = ""; //Ťת<C5A4><D7AA><EFBFBD><EFBFBD>
|
|
|
|
|
|
char cvin[8] = ""; //<2F>м<EFBFBD><D0BC><EFBFBD><EFBFBD><EFBFBD>
|
|
|
|
|
|
|
|
|
|
|
|
if(nKey == 1) //<2F><>Key
|
|
|
|
|
|
{
|
|
|
|
|
|
for(int i = 0, j = inLen >> 3; i<j; ++i, out += 8, in += 8)
|
|
|
|
|
|
{
|
|
|
|
|
|
if(desType == DT_ENCRYPT)
|
|
|
|
|
|
{
|
|
|
|
|
|
for(int j = 0; j < 8; ++j) //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ťת<C5A4><D7AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
|
|
|
|
|
{
|
|
|
|
|
|
cvin[j] = in[j] ^ cvec[j];
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
else
|
|
|
|
|
|
{
|
|
|
|
|
|
memcpy(cvin, in, 8);
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
Des(out, cvin, &m_SubKey[0], desType);
|
|
|
|
|
|
|
|
|
|
|
|
if(desType == DT_ENCRYPT)
|
|
|
|
|
|
{
|
|
|
|
|
|
memcpy(cvec, out, 8); //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>趨ΪŤת<C5A4><D7AA><EFBFBD><EFBFBD>
|
|
|
|
|
|
}
|
|
|
|
|
|
else
|
|
|
|
|
|
{
|
|
|
|
|
|
for(int j = 0; j < 8; ++j) //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ťת<C5A4><D7AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
|
|
|
|
|
{
|
|
|
|
|
|
out[j] = out[j] ^ cvec[j];
|
|
|
|
|
|
}
|
|
|
|
|
|
memcpy(cvec, cvin, 8); //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>趨ΪŤת<C5A4><D7AA><EFBFBD><EFBFBD>
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
else if(nKey == 2) //3DES CBC 2Key
|
|
|
|
|
|
{
|
|
|
|
|
|
for(int i = 0, j = inLen >> 3; i < j; ++i, out += 8, in += 8)
|
|
|
|
|
|
{
|
|
|
|
|
|
if(desType == DT_ENCRYPT)
|
|
|
|
|
|
{
|
|
|
|
|
|
for(int j = 0; j < 8; ++j) //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ťת<C5A4><D7AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
|
|
|
|
|
{
|
|
|
|
|
|
cvin[j] = in[j] ^ cvec[j];
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
else
|
|
|
|
|
|
{
|
|
|
|
|
|
memcpy(cvin, in, 8);
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
Des(out, cvin, &m_SubKey[0], desType);
|
|
|
|
|
|
Des(out, out, &m_SubKey[1], ((desType==DT_ENCRYPT)?(DT_DECRYPT):(DT_ENCRYPT)));
|
|
|
|
|
|
Des(out, out, &m_SubKey[0], desType);
|
|
|
|
|
|
|
|
|
|
|
|
if(desType == DT_ENCRYPT)
|
|
|
|
|
|
{
|
|
|
|
|
|
memcpy(cvec, out, 8); //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>趨ΪŤת<C5A4><D7AA><EFBFBD><EFBFBD>
|
|
|
|
|
|
}
|
|
|
|
|
|
else
|
|
|
|
|
|
{
|
|
|
|
|
|
for(int j = 0; j < 8; ++j) //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ťת<C5A4><D7AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
|
|
|
|
|
{
|
|
|
|
|
|
out[j] = out[j] ^ cvec[j];
|
|
|
|
|
|
}
|
|
|
|
|
|
memcpy(cvec, cvin, 8); //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>趨ΪŤת<C5A4><D7AA><EFBFBD><EFBFBD>
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
else //3DES CBC 3Key
|
|
|
|
|
|
{
|
|
|
|
|
|
for(int i = 0, j = inLen >> 3; i < j; ++i, out += 8, in += 8)
|
|
|
|
|
|
{
|
|
|
|
|
|
if(desType == DT_ENCRYPT)
|
|
|
|
|
|
{
|
|
|
|
|
|
for(int j = 0; j < 8; ++j) //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ťת<C5A4><D7AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
|
|
|
|
|
{
|
|
|
|
|
|
cvin[j] = in[j] ^ cvec[j];
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
else
|
|
|
|
|
|
{
|
|
|
|
|
|
memcpy(cvin, in, 8);
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
Des(out, cvin, &m_SubKey[desType ? 2 : 0], desType);
|
|
|
|
|
|
Des(out, out, &m_SubKey[1], ((desType==DT_ENCRYPT)?(DT_DECRYPT):(DT_ENCRYPT)));
|
|
|
|
|
|
Des(out, out, &m_SubKey[desType ? 0 : 2], desType);
|
|
|
|
|
|
|
|
|
|
|
|
if(desType == DT_ENCRYPT)
|
|
|
|
|
|
{
|
|
|
|
|
|
memcpy(cvec, out, 8); //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>趨ΪŤת<C5A4><D7AA><EFBFBD><EFBFBD>
|
|
|
|
|
|
}
|
|
|
|
|
|
else
|
|
|
|
|
|
{
|
|
|
|
|
|
for(int j = 0; j < 8; ++j) //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ťת<C5A4><D7AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
|
|
|
|
|
{
|
|
|
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out[j] = out[j] ^ cvec[j];
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}
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memcpy(cvec,cvin,8); //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>趨ΪŤת<C5A4><D7AA><EFBFBD><EFBFBD>
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}
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}
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}
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}
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return true;
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}
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/*******************************************************************/
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/*
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<EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD>: RunPad
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<EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD> <EFBFBD><EFBFBD> ˵ <EFBFBD><EFBFBD><EFBFBD><EFBFBD> nPadType :<EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD>PAD<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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In :<EFBFBD><EFBFBD><EFBFBD>ݴ<EFBFBD>ָ<EFBFBD><EFBFBD>
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Out :<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD>
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datalen :<EFBFBD><EFBFBD><EFBFBD>ݵij<EFBFBD><EFBFBD><EFBFBD>
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padlen :(in,out)<EFBFBD><EFBFBD><EFBFBD><EFBFBD>buffer<EFBFBD>ij<EFBFBD><EFBFBD>ȣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD><EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ ˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD> bool :<EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɹ<EFBFBD>
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/*******************************************************************/
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bool DES::RunPad(const char* in,unsigned int inLen,char* out,unsigned int &padlen)
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{
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int res = (inLen & 0x00000007);
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if(res == 0)
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{
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return true;
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}
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//if(padlen < (inLen + 8 - res))
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//{
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// return false;
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//}
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//else
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//{
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padlen = (inLen + 8 - res);
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memcpy(out, in, inLen);
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//}
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if(m_pad_type == PT_ISO_1)
|
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|
{
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|
|
memset(out + inLen, 0x00, 8 - res);
|
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}
|
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|
else if(m_pad_type == PT_ISO_2)
|
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|
{
|
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|
memset(out + inLen, 0x80, 1);
|
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|
memset(out + inLen, 0x00, 7 - res);
|
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|
}
|
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|
else if(m_pad_type == PT_PKCS_7)
|
|
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|
|
|
{
|
|
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|
|
memset(out + inLen, 8 - res, 8 - res);
|
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|
|
}
|
|
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|
|
else
|
|
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|
|
{
|
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|
|
return false;
|
|
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|
|
}
|
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|
|
|
|
return true;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
bool DES::RunPad(std::string &in)
|
|
|
|
|
|
{
|
|
|
|
|
|
int res = (in.length() & 0x00000007);
|
|
|
|
|
|
|
|
|
|
|
|
if(res == 0)
|
|
|
|
|
|
{
|
|
|
|
|
|
return true;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
if(m_pad_type == PT_ISO_1)
|
|
|
|
|
|
{
|
|
|
|
|
|
in.append(8-res, 0x00);
|
|
|
|
|
|
}
|
|
|
|
|
|
else if(m_pad_type == PT_ISO_2)
|
|
|
|
|
|
{
|
|
|
|
|
|
in.append(1, 0x80);
|
|
|
|
|
|
if(7 - res > 0)
|
|
|
|
|
|
{
|
|
|
|
|
|
in.append(7 - res, 0x00);
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
else if(m_pad_type == PT_PKCS_7)
|
|
|
|
|
|
{
|
|
|
|
|
|
in.append(8-res, 8-res);
|
|
|
|
|
|
}
|
|
|
|
|
|
else
|
|
|
|
|
|
{
|
|
|
|
|
|
return false;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
return true;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//<2F><><EFBFBD>㲢<EFBFBD><E3B2A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Կ<EFBFBD><D4BF>SubKey<65><79><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
|
|
|
|
|
void DES::SetSubKey(PSubKey pSubKey, const char Key[8])
|
|
|
|
|
|
{
|
|
|
|
|
|
bool K[64], *KL=&K[0], *KR=&K[28];
|
|
|
|
|
|
ByteToBit(K, Key, 64);
|
|
|
|
|
|
Transform(K, K, PC1_Table, 56);
|
|
|
|
|
|
for(int i=0; i<16; ++i) {
|
|
|
|
|
|
RotateL(KL, 28, LOOP_Table[i]);
|
|
|
|
|
|
RotateL(KR, 28, LOOP_Table[i]);
|
|
|
|
|
|
Transform((*pSubKey)[i], K, PC2_Table, 48);
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//DES<45><53>Ԫ<EFBFBD><D4AA><EFBFBD><EFBFBD>
|
|
|
|
|
|
void DES::Des(char Out[8], const char In[8], const PSubKey pSubKey, DES_TYPE desType)
|
|
|
|
|
|
{
|
|
|
|
|
|
bool M[64], tmp[32], *Li=&M[0], *Ri=&M[32];
|
|
|
|
|
|
ByteToBit(M, In, 64);
|
|
|
|
|
|
Transform(M, M, IP_Table, 64);
|
|
|
|
|
|
if( desType == DT_ENCRYPT )
|
|
|
|
|
|
{
|
|
|
|
|
|
for(int i=0; i<16; ++i)
|
|
|
|
|
|
{
|
|
|
|
|
|
memcpy(tmp, Ri, 32); //Ri[i-1] <20><><EFBFBD><EFBFBD>
|
|
|
|
|
|
F_func(Ri, (*pSubKey)[i]); //Ri[i-1]<5D><><EFBFBD><EFBFBD>ת<EFBFBD><D7AA><EFBFBD><EFBFBD>SBox<6F><78><EFBFBD><EFBFBD>ΪP
|
|
|
|
|
|
Xor(Ri, Li, 32); //Ri[i] = P XOR Li[i-1]
|
|
|
|
|
|
memcpy(Li, tmp, 32); //Li[i] = Ri[i-1]
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
else
|
|
|
|
|
|
{
|
|
|
|
|
|
for(int i=15; i>=0; --i)
|
|
|
|
|
|
{
|
|
|
|
|
|
memcpy(tmp, Ri, 32); //Ri[i-1] <20><><EFBFBD><EFBFBD>
|
|
|
|
|
|
F_func(Ri, (*pSubKey)[i]); //Ri[i-1]<5D><><EFBFBD><EFBFBD>ת<EFBFBD><D7AA><EFBFBD><EFBFBD>SBox<6F><78><EFBFBD><EFBFBD>ΪP
|
|
|
|
|
|
Xor(Ri, Li, 32); //Ri[i] = P XOR Li[i-1]
|
|
|
|
|
|
memcpy(Li, tmp, 32); //Li[i] = Ri[i-1]
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
RotateL(M,64,32); //Ri<52><69>Li<4C><69>λ<EFBFBD><CEBB><EFBFBD><EFBFBD>M
|
|
|
|
|
|
Transform(M, M, IPR_Table, 64); //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><D7AA>
|
|
|
|
|
|
BitToByte(Out, M, 64); //<2F><>֯<EFBFBD><D6AF><EFBFBD>ַ<EFBFBD>
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
|
std::string des_encrypt(std::string in, std::string key)
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
std::string des_decrypt(std::string in, std::string key)
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
