SHOW:
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| 1 | - | while (j < i + 8 && j < dim) |
| 1 | + | unsigned long long encryptDESplain(unsigned long long plain, unsigned long long *subKeys){
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| 2 | - | {
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| 2 | + | |
| 3 | - | outByteArray[j] = (unsigned char) (cipher >> (56 - 8*(j-i)) & (0xFF)); |
| 3 | + | unsigned long long nova_plain = ip(plain);// primeira permuta (retira bits paridade) |
| 4 | - | j++; |
| 4 | + | unsigned long long dir = nova_plain & 0xFFFFFFFF;//comparamos 32 bits |
| 5 | - | } |
| 5 | + | unsigned long long esq = (nova_plain >>32) & 0xFFFFFFFF;//comparamos os 32 bits da esquerda |
| 6 | unsigned long long plain_final = 0; | |
| 7 | int j = 0; | |
| 8 | ||
| 9 | for (j;j<16;j++){
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| 10 | dir = nova_plain & 0xFFFFFFFF; | |
| 11 | esq = (nova_plain >> 32) & 0xFFFFFFFF; | |
| 12 | esq=esq ^ function_p(function_s(function_e(dir)^subKeys[j])); | |
| 13 | nova_plain = (dir << 32) | esq; | |
| 14 | } | |
| 15 | esq = (nova_plain << 32) & 0xFFFFFFFF00000000; | |
| 16 | dir = (nova_plain >> 32) & 0xFFFFFFFF; | |
| 17 | plain_final= dir | esq; | |
| 18 | ||
| 19 | return IP1(plain_final); | |
| 20 | ||
| 21 | } |
