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use vzeroall to complete AVX mode

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orignal 2016-12-10 20:41:42 -05:00
parent dca48c7eec
commit 259baa0e84
1 changed files with 6 additions and 5 deletions
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11
Crypto.cpp
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@ -409,9 +409,11 @@ namespace crypto
"vmovups %%ymm1, 32%[hash] \n"
"vxorps %%ymm0, %%ymm1, %%ymm1 \n"
"vmovups %%ymm1, %[hash] \n"
"vzeroall \n" // end of AVX
"movups %%xmm0, 80%[hash] \n" // zero last 16 bytes
: [buf]"=m"(*buf), [hash]"=m"(*hash)
: [key]"m"(*(const uint8_t *)key), [ipad]"m"(*ipads), [opad]"m"(*opads)
: "memory", "%xmm0", "%xmm1" // should be replaced by %ymm0/1 once supported by compiler
: "memory"
);
#else
// ikeypad
@ -426,15 +428,14 @@ namespace crypto
hash[2] = key.GetLL ()[2] ^ OPAD;
hash[3] = key.GetLL ()[3] ^ OPAD;
memcpy (hash + 4, opads, 32);
// fill last 16 bytes with zeros (first hash size assumed 32 bytes in I2P)
memset (hash + 10, 0, 16);
#endif
// concatenate with msg
memcpy (buf + 8, msg, len);
// calculate first hash
MD5((uint8_t *)buf, len + 64, (uint8_t *)(hash + 8)); // 16 bytes
// fill last 16 bytes with zeros (first hash size assumed 32 bytes in I2P)
memset (hash + 10, 0, 16);
MD5((uint8_t *)buf, len + 64, (uint8_t *)(hash + 8)); // 16 bytes
// calculate digest
MD5((uint8_t *)hash, 96, digest);