| 123 | } |
| 124 | |
| 125 | void Rijndael::blockEncrypt(const byte *input,size_t inputLen,byte *outBuffer) |
| 126 | { |
| 127 | if (inputLen <= 0) |
| 128 | return; |
| 129 | |
| 130 | size_t numBlocks = inputLen/16; |
| 131 | #ifdef USE_SSE |
| 132 | if (AES_NI) |
| 133 | { |
| 134 | blockEncryptSSE(input,numBlocks,outBuffer); |
| 135 | return; |
| 136 | } |
| 137 | #endif |
| 138 | |
| 139 | byte *prevBlock = m_initVector; |
| 140 | for(size_t i = numBlocks;i > 0;i--) |
| 141 | { |
| 142 | byte block[16]; |
| 143 | if (CBCMode) |
| 144 | Xor128(block,prevBlock,input); |
| 145 | else |
| 146 | Copy128(block,input); |
| 147 | |
| 148 | byte temp[4][4]; |
| 149 | |
| 150 | Xor128(temp,block,m_expandedKey[0]); |
| 151 | Xor128(outBuffer, T1[temp[0][0]],T2[temp[1][1]],T3[temp[2][2]],T4[temp[3][3]]); |
| 152 | Xor128(outBuffer+4, T1[temp[1][0]],T2[temp[2][1]],T3[temp[3][2]],T4[temp[0][3]]); |
| 153 | Xor128(outBuffer+8, T1[temp[2][0]],T2[temp[3][1]],T3[temp[0][2]],T4[temp[1][3]]); |
| 154 | Xor128(outBuffer+12,T1[temp[3][0]],T2[temp[0][1]],T3[temp[1][2]],T4[temp[2][3]]); |
| 155 | |
| 156 | for(int r = 1; r < m_uRounds-1; r++) |
| 157 | { |
| 158 | Xor128(temp,outBuffer,m_expandedKey[r]); |
| 159 | Xor128(outBuffer, T1[temp[0][0]],T2[temp[1][1]],T3[temp[2][2]],T4[temp[3][3]]); |
| 160 | Xor128(outBuffer+4, T1[temp[1][0]],T2[temp[2][1]],T3[temp[3][2]],T4[temp[0][3]]); |
| 161 | Xor128(outBuffer+8, T1[temp[2][0]],T2[temp[3][1]],T3[temp[0][2]],T4[temp[1][3]]); |
| 162 | Xor128(outBuffer+12,T1[temp[3][0]],T2[temp[0][1]],T3[temp[1][2]],T4[temp[2][3]]); |
| 163 | } |
| 164 | Xor128(temp,outBuffer,m_expandedKey[m_uRounds-1]); |
| 165 | outBuffer[ 0] = T1[temp[0][0]][1]; |
| 166 | outBuffer[ 1] = T1[temp[1][1]][1]; |
| 167 | outBuffer[ 2] = T1[temp[2][2]][1]; |
| 168 | outBuffer[ 3] = T1[temp[3][3]][1]; |
| 169 | outBuffer[ 4] = T1[temp[1][0]][1]; |
| 170 | outBuffer[ 5] = T1[temp[2][1]][1]; |
| 171 | outBuffer[ 6] = T1[temp[3][2]][1]; |
| 172 | outBuffer[ 7] = T1[temp[0][3]][1]; |
| 173 | outBuffer[ 8] = T1[temp[2][0]][1]; |
| 174 | outBuffer[ 9] = T1[temp[3][1]][1]; |
| 175 | outBuffer[10] = T1[temp[0][2]][1]; |
| 176 | outBuffer[11] = T1[temp[1][3]][1]; |
| 177 | outBuffer[12] = T1[temp[3][0]][1]; |
| 178 | outBuffer[13] = T1[temp[0][1]][1]; |
| 179 | outBuffer[14] = T1[temp[1][2]][1]; |
| 180 | outBuffer[15] = T1[temp[2][3]][1]; |
| 181 | Xor128(outBuffer,outBuffer,m_expandedKey[m_uRounds]); |
| 182 | prevBlock=outBuffer; |