|
|
|
@ -108,43 +108,10 @@ namespace crypto
@@ -108,43 +108,10 @@ namespace crypto
|
|
|
|
|
|
|
|
|
|
void operator^=(const ChipherBlock& other) // XOR
|
|
|
|
|
{ |
|
|
|
|
if (!(((size_t)buf | (size_t)other.buf) & 0x0F)) // multiple of 16 ?
|
|
|
|
|
if (!(((size_t)buf | (size_t)other.buf) & 0x03)) // multiple of 4 ?
|
|
|
|
|
{ |
|
|
|
|
// try 128 bits if applicable
|
|
|
|
|
#ifdef __AVX__ |
|
|
|
|
if (i2p::cpu::avx) |
|
|
|
|
{ |
|
|
|
|
__asm__ |
|
|
|
|
( |
|
|
|
|
"vmovaps (%[buf]), %%xmm0 \n" |
|
|
|
|
"vmovaps (%[other]), %%xmm1 \n" |
|
|
|
|
"vxorps %%xmm0, %%xmm1, %%xmm0 \n" |
|
|
|
|
"vmovaps %%xmm0, (%[buf]) \n" |
|
|
|
|
: |
|
|
|
|
: [buf]"r"(buf), [other]"r"(other.buf) |
|
|
|
|
: "%xmm0", "%xmm1", "memory" |
|
|
|
|
); |
|
|
|
|
} |
|
|
|
|
else |
|
|
|
|
#endif |
|
|
|
|
{ |
|
|
|
|
#if defined(__SSE__) // SSE
|
|
|
|
|
__asm__ |
|
|
|
|
( |
|
|
|
|
"movaps (%[buf]), %%xmm0 \n" |
|
|
|
|
"movaps (%[other]), %%xmm1 \n" |
|
|
|
|
"pxor %%xmm1, %%xmm0 \n" |
|
|
|
|
"movaps %%xmm0, (%[buf]) \n" |
|
|
|
|
: |
|
|
|
|
: [buf]"r"(buf), [other]"r"(other.buf) |
|
|
|
|
: "%xmm0", "%xmm1", "memory" |
|
|
|
|
); |
|
|
|
|
#else |
|
|
|
|
// if not we always can cast to uint32_t *
|
|
|
|
|
for (int i = 0; i < 4; i++) |
|
|
|
|
reinterpret_cast<uint32_t *>(buf)[i] ^= reinterpret_cast<const uint32_t *>(other.buf)[i]; |
|
|
|
|
#endif |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
else |
|
|
|
|
{ |
|
|
|
|