URL https://opencores.org/ocsvn/csa/csa/trunk

Subversion Repositories csa

[/] [csa/] [trunk/] [sw_sim/] [csa.c] - Diff between revs 40 and 41

Rev 40	Rev 41
Line 292...	Line 292...
`for(k=0; k<8; k++) {`	`for(k=0; k<8; k++) {`
`kb[6-i][1+j] \|= newbit[j*8+k] << (7-k);`	`kb[6-i][1+j] \|= newbit[j*8+k] << (7-k);`
`}`	`}`
`}`	`}`
`}`	`}`
`DEBUG_OUTPUT_ARR(kb[0],9);`
`DEBUG_OUTPUT_ARR(kb[1],9);`
`DEBUG_OUTPUT_ARR(kb[2],9);`
`DEBUG_OUTPUT_ARR(kb[3],9);`
`DEBUG_OUTPUT_ARR(kb[4],9);`
`DEBUG_OUTPUT_ARR(kb[5],9);`
`DEBUG_OUTPUT_ARR(kb[6],9);`
`DEBUG_OUTPUT_ARR(kb[7],9);`
`DEBUG_OUTPUT_ARR(kb[8],9);`
`DEBUG_OUTPUT_ARR(kb[9],9);`

`/* xor to give kk */`	`/* xor to give kk */`
`for(i=0; i<7; i++) {`	`for(i=0; i<7; i++) {`
`for(j=0; j<8; j++) {`	`for(j=0; j<8; j++) {`
`kk[1+i*8+j] = kb[1+i][1+j] ^ i;`	`kk[1+i*8+j] = kb[1+i][1+j] ^ i;`
`}`	`}`
`}`	`}`
`DEBUG_OUTPUT_ARR(&kk[1],56);`
`}`	`}`

`void block_decypher(int kk, unsigned char ib, unsigned char *bd) {`	`void block_decypher(int kk, unsigned char ib, unsigned char *bd) {`
`int i;`	`int i;`
`int sbox_in;`	`int sbox_in;`
Line 393...	Line 382...
`N = (188 - offset) / 8;`	`N = (188 - offset) / 8;`
`residue = (188 - offset) % 8;`	`residue = (188 - offset) % 8;`

`/* 1st 8 bytes of initialisation */`	`/* 1st 8 bytes of initialisation */`
`stream_cypher(1, ck, &encrypted[offset], ib);`	`stream_cypher(1, ck, &encrypted[offset], ib);`
	`DEBUG_OUTPUT_ARR(ib,8);`

`for(j=1; j<(N+1); j++) {`	`for(j=1; j<(N+1); j++) {`
`block_decypher(kk, ib, block);`	`block_decypher(kk, ib, block);`

`if (j != N) {`	`if (j != N) {`