| Line 385... |
Line 385... |
/* 1st 8 bytes of initialisation */
|
/* 1st 8 bytes of initialisation */
|
stream_cypher(1, ck, &encrypted[offset], ib);
|
stream_cypher(1, ck, &encrypted[offset], ib);
|
|
|
for(j=1; j<(N+1); j++) {
|
for(j=1; j<(N+1); j++) {
|
block_decypher(kk, ib, block);
|
block_decypher(kk, ib, block);
|
DEBUG_OUTPUT_ARR(ib,8);
|
|
DEBUG_OUTPUT_ARR(block,8);
|
|
|
|
if (j != N) {
|
if (j != N) {
|
stream_cypher(0, ck, NULL, stream);
|
stream_cypher(0, ck, NULL, stream);
|
|
|
/* xor sb x stream */
|
/* xor sb x stream */
|
|
DEBUG_OUTPUT_ARR(&encrypted[offset+8*j+0],8);
|
|
DEBUG_OUTPUT_ARR(stream,8);
|
for(i=0; i<8; i++)
|
for(i=0; i<8; i++)
|
ib[i] = encrypted[offset+8*j+i] ^ stream[i];
|
ib[i] = encrypted[offset+8*j+i] ^ stream[i];
|
}
|
}
|
else {
|
else {
|
/* last block - sb[N+1] = IV(initialisation vetor)(=0) */
|
/* last block - sb[N+1] = IV(initialisation vetor)(=0) */
|
| Line 407... |
Line 407... |
DEBUG_OUTPUT_ARR(ib,8);
|
DEBUG_OUTPUT_ARR(ib,8);
|
DEBUG_OUTPUT_ARR(block,8);
|
DEBUG_OUTPUT_ARR(block,8);
|
#endif
|
#endif
|
|
|
/* xor ib x block */
|
/* xor ib x block */
|
|
DEBUG_OUTPUT_ARR(block,8);
|
for(i=0; i<8; i++)
|
for(i=0; i<8; i++)
|
decrypted[offset+8*(j-1)+i] = ib[i] ^ block[i];
|
decrypted[offset+8*(j-1)+i] = ib[i] ^ block[i];
|
|
DEBUG_OUTPUT_ARR(&decrypted[offset+8*(j-1)+0],8);
|
} /* for(j=1; j<(N+1); j++) */
|
} /* for(j=1; j<(N+1); j++) */
|
|
|
if (residue) {
|
if (residue) {
|
stream_cypher(0, ck, NULL, stream);
|
stream_cypher(0, ck, NULL, stream);
|
for (i=0;i<residue;i++)
|
for (i=0;i<residue;i++)
|
