/************************************************* * Xor Operations Header File * * (C) 1999-2008 Jack Lloyd * *************************************************/ #ifndef BOTAN_XOR_BUF_H__ #define BOTAN_XOR_BUF_H__ #include namespace Botan { /************************************************* * XOR Arrays * *************************************************/ inline void xor_buf(byte out[], const byte in[], u32bit length) { while(length >= 8) { #if BOTAN_UNALIGNED_LOADSTOR_OK *reinterpret_cast(out) ^= *reinterpret_cast(in); #else out[0] ^= in[0]; out[1] ^= in[1]; out[2] ^= in[2]; out[3] ^= in[3]; out[4] ^= in[4]; out[5] ^= in[5]; out[6] ^= in[6]; out[7] ^= in[7]; #endif out += 8; in += 8; length -= 8; } for(u32bit j = 0; j != length; ++j) out[j] ^= in[j]; } /************************************************* * XOR Arrays * *************************************************/ inline void xor_buf(byte out[], const byte in[], const byte in2[], u32bit length) { while(length >= 8) { #if BOTAN_UNALIGNED_LOADSTOR_OK *reinterpret_cast(out) = *reinterpret_cast(in) ^ *reinterpret_cast(in2); #else out[0] = in[0] ^ in2[0]; out[1] = in[1] ^ in2[1]; out[2] = in[2] ^ in2[2]; out[3] = in[3] ^ in2[3]; out[4] = in[4] ^ in2[4]; out[5] = in[5] ^ in2[5]; out[6] = in[6] ^ in2[6]; out[7] = in[7] ^ in2[7]; #endif in += 8; in2 += 8; out += 8; length -= 8; } for(u32bit j = 0; j != length; ++j) out[j] = in[j] ^ in2[j]; } } #endif