150476Speter/* { dg-additional-options "-fPIC" { target fpic } } */ 21987Swollman 31987Swollmantypedef unsigned long word32; 41987Swollmantypedef unsigned char byte; 5100346Srutypedef struct cast256_instance { word32 l_key[96];} cast256_key; 6100346Sruword32 cast256_sbox[4][256] = {}; 7100346Sruvoid 8100346Srukey (cast256_key *key, const word32 *in_key, const int key_len) 9100346Sru{ 10100346Sru word32 i, j, t, u, cm, cr, lk[8], tm[8], tr[8]; 11100346Sru for (i = 0; i < 96; i += 8) 12100346Sru { 13100346Sru for (j = 0; j < 8; ++j) 14100346Sru { 15100346Sru tm[j] = cm; 16100346Sru cm += 0x6ed9eba1; 17100346Sru tr[j] = cr; 18100346Sru cr += 17; 19100346Sru } 20100346Sru t = (((tm[0] + lk[7]) << ((word32)(tr[0] & 31))) 21100346Sru | ((tm[0] + lk[7]) >> (32 - (word32)(tr[0] & 31)))); 22100346Sru u = cast256_sbox[0][((byte)((t) >> (8 * 3)))]; 23100346Sru u ^= cast256_sbox[1][((byte)((t) >> (8 * 2)))]; 24100346Sru lk[7] ^= u; 25100346Sru for (j = 0; j < 8; ++j) 26100346Sru { 27100346Sru cm += 0x6ed9eba1; 28100346Sru tr[j] = cr; 29100346Sru cr += 17; 30100346Sru } 31100346Sru t = (((tm[0] + lk[7]) << ((word32)(tr[0] & 31))) 32100346Sru | ((tm[0] + lk[7]) >> (32 - (word32)(tr[0] & 31)))); 33100346Sru u = cast256_sbox[0][((byte)((t) >> (8 * 3)))]; 34100346Sru u ^= cast256_sbox[1][((byte)((t) >> (8 * 2)))]; 35100346Sru u -= cast256_sbox[2][((byte)((t) >> (8 * 1)))]; 36100346Sru lk[2] ^= u; 374257Sphk lk[7] ^= u; 38100346Sru key->l_key[i + 1] = lk[2]; 39100346Sru } 40100346Sru} 41100346Sru