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Some ARM NEON code (not finished)

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This commit is contained in:
Adam Ierymenko 2019-08-16 19:22:03 -07:00
parent 7bdca83de3
commit 0914bf8cf0
No known key found for this signature in database
GPG Key ID: 1657198823E52A61
1 changed files with 115 additions and 2 deletions
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117
node/AES.hpp
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@ -37,6 +37,26 @@
#define ZT_AES_AESNI 1 #define ZT_AES_AESNI 1
#endif #endif
#if defined(__arm__) || defined(__aarch32__) || defined(__arm64__) || defined(__aarch64__) || defined(_M_ARM)
#if defined(_M_ARM64)
#include <arm64intr.h>
#include <arm64_neon.h>
#ifndef ZT_AES_ARMNEON
#define ZT_AES_ARMNEON 1
#endif
#endif
#if defined(__ARM_NEON) || defined(__MSC_VER) || defined(_M_ARM)
#include <armintr.h>
#include <arm_neon.h>
#ifndef ZT_AES_ARMNEON
#define ZT_AES_ARMNEON 1
#endif
#endif
#if defined(ZT_AES_ARMNEON) && defined(__GNUC__) && (defined(__ARM_ACL) || defined(__ARM_FEATURE_CRYPTO))
#include <arm_acl.h>
#endif
#endif
#define ZT_AES_KEY_SIZE 32 #define ZT_AES_KEY_SIZE 32
#define ZT_AES_BLOCK_SIZE 16 #define ZT_AES_BLOCK_SIZE 16
@ -66,6 +86,7 @@ public:
return; return;
} }
#endif #endif
_initSW(key); _initSW(key);
} }
@ -77,6 +98,7 @@ public:
return; return;
} }
#endif #endif
_encryptSW(in,out); _encryptSW(in,out);
} }
@ -88,6 +110,7 @@ public:
return; return;
} }
#endif #endif
_decryptSW(in,out); _decryptSW(in,out);
} }
@ -95,6 +118,7 @@ public:
{ {
if (inlen < 16) if (inlen < 16)
return; return;
#ifdef ZT_AES_AESNI #ifdef ZT_AES_AESNI
if (likely(HW_ACCEL)) { if (likely(HW_ACCEL)) {
const uint8_t *i = (const uint8_t *)in; const uint8_t *i = (const uint8_t *)in;
@ -119,6 +143,7 @@ public:
return; return;
} }
#endif #endif
const uint8_t *i = (const uint8_t *)in; const uint8_t *i = (const uint8_t *)in;
uint8_t *o = (uint8_t *)out; uint8_t *o = (uint8_t *)out;
while (inlen >= 16) { while (inlen >= 16) {
@ -163,7 +188,13 @@ private:
void _encryptSW(const uint8_t in[16],uint8_t out[16]) const; void _encryptSW(const uint8_t in[16],uint8_t out[16]) const;
void _decryptSW(const uint8_t in[16],uint8_t out[16]) const; void _decryptSW(const uint8_t in[16],uint8_t out[16]) const;
/**************************************************************************/
union { union {
#ifdef ZT_AES_ARMNEON
struct {
uint32x4_t k[15];
} neon;
#endif
#ifdef ZT_AES_AESNI #ifdef ZT_AES_AESNI
struct { struct {
__m128i k[28]; __m128i k[28];
@ -175,6 +206,90 @@ private:
uint32_t dk[60]; uint32_t dk[60];
} sw; } sw;
} _k; } _k;
/**************************************************************************/
#ifdef ZT_AES_ARMNEON /******************************************************/
static inline uint32x4_t *_aes_256_expAssist_armneon(uint32x4_t prev1,uint32x4_t prev2,uint32_t rcon)
{
uint32_t round1[4], round2[4], prv1[4], prv2[4];
vst1q_u32(prv1, prev1);
vst1q_u32(prv2, prev2);
round1[0] = sub_word(rot_word(prv2[3])) ^ rcon ^ prv1[0];
round1[1] = sub_word(rot_word(round1[0])) ^ rcon ^ prv1[1];
round1[2] = sub_word(rot_word(round1[1])) ^ rcon ^ prv1[2];
round1[3] = sub_word(rot_word(round1[2])) ^ rcon ^ prv1[3];
round2[0] = sub_word(rot_word(round1[3])) ^ rcon ^ prv2[0];
round2[1] = sub_word(rot_word(round2[0])) ^ rcon ^ prv2[1];
round2[2] = sub_word(rot_word(round2[1])) ^ rcon ^ prv2[2];
round2[3] = sub_word(rot_word(round2[2])) ^ rcon ^ prv2[3];
uint32x4_t expansion[2] = {vld1q_u3(round1), vld1q_u3(round2)};
return expansion;
}
inline void _init_armneon(uint8x16_t encKey)
{
uint32x4_t *schedule = _k.neon.k;
uint32x4_t *doubleRound = nullptr;
(*schedule)[0] = vld1q_u32(encKey);
(*schedule)[1] = vld1q_u32(encKey + 16);
doubleRound = _aes_256_expAssist_armneon((*schedule)[0], (*schedule)[1], 0x01);
(*schedule)[2] = doubleRound[0];
(*schedule)[3] = doubleRound[1];
doubleRound = _aes_256_expAssist_armneon((*schedule)[2], (*schedule)[3], 0x02);
(*schedule)[4] = doubleRound[0];
(*schedule)[5] = doubleRound[1];
doubleRound = _aes_256_expAssist_armneon((*schedule)[4], (*schedule)[5], 0x04);
(*schedule)[6] = doubleRound[0];
(*schedule)[7] = doubleRound[1];
doubleRound = _aes_256_expAssist_armneon((*schedule)[6], (*schedule)[7], 0x08);
(*schedule)[8] = doubleRound[0];
(*schedule)[9] = doubleRound[1];
doubleRound = _aes_256_expAssist_armneon((*schedule)[8], (*schedule)[9], 0x10);
(*schedule)[10] = doubleRound[0];
(*schedule)[11] = doubleRound[1];
doubleRound = _aes_256_expAssist_armneon((*schedule)[10], (*schedule)[11], 0x20);
(*schedule)[12] = doubleRound[0];
(*schedule)[13] = doubleRound[1];
doubleRound = _aes_256_expAssist_armneon((*schedule)[12], (*schedule)[13], 0x40);
(*schedule)[14] = doubleRound[0];
}
inline void _encrypt_armneon(uint8x16_t *data) const
{
*data = veorq_u8(*data, _k.neon.k[0]);
*data = vaesmcq_u8(vaeseq_u8(*data, (uint8x16_t)_k.neon.k[1]));
*data = vaesmcq_u8(vaeseq_u8(*data, (uint8x16_t)_k.neon.k[2]));
*data = vaesmcq_u8(vaeseq_u8(*data, (uint8x16_t)_k.neon.k[3]));
*data = vaesmcq_u8(vaeseq_u8(*data, (uint8x16_t)_k.neon.k[4]));
*data = vaesmcq_u8(vaeseq_u8(*data, (uint8x16_t)_k.neon.k[5]));
*data = vaesmcq_u8(vaeseq_u8(*data, (uint8x16_t)_k.neon.k[6]));
*data = vaesmcq_u8(vaeseq_u8(*data, (uint8x16_t)_k.neon.k[7]));
*data = vaesmcq_u8(vaeseq_u8(*data, (uint8x16_t)_k.neon.k[8]));
*data = vaesmcq_u8(vaeseq_u8(*data, (uint8x16_t)_k.neon.k[9]));
*data = vaesmcq_u8(vaeseq_u8(*data, (uint8x16_t)_k.neon.k[10]));
*data = vaesmcq_u8(vaeseq_u8(*data, (uint8x16_t)_k.neon.k[11]));
*data = vaesmcq_u8(vaeseq_u8(*data, (uint8x16_t)_k.neon.k[12]));
*data = vaesmcq_u8(vaeseq_u8(*data, (uint8x16_t)_k.neon.k[13]));
*data = vaeseq_u8(*data, _k.neon.k[14]);
}
inline void _decrypt_armneon(uint8x16_t *data) const
{
*data = veorq_u8(*data, _k.neon.k[14]);
*data = vaesimcq_u8(vaesdq_u8(*data, (uint8x16_t)_k.neon.k[13]));
*data = vaesimcq_u8(vaesdq_u8(*data, (uint8x16_t)_k.neon.k[12]));
*data = vaesimcq_u8(vaesdq_u8(*data, (uint8x16_t)_k.neon.k[11]));
*data = vaesimcq_u8(vaesdq_u8(*data, (uint8x16_t)_k.neon.k[10]));
*data = vaesimcq_u8(vaesdq_u8(*data, (uint8x16_t)_k.neon.k[9]));
*data = vaesimcq_u8(vaesdq_u8(*data, (uint8x16_t)_k.neon.k[8]));
*data = vaesimcq_u8(vaesdq_u8(*data, (uint8x16_t)_k.neon.k[7]));
*data = vaesimcq_u8(vaesdq_u8(*data, (uint8x16_t)_k.neon.k[6]));
*data = vaesimcq_u8(vaesdq_u8(*data, (uint8x16_t)_k.neon.k[5]));
*data = vaesimcq_u8(vaesdq_u8(*data, (uint8x16_t)_k.neon.k[4]));
*data = vaesimcq_u8(vaesdq_u8(*data, (uint8x16_t)_k.neon.k[3]));
*data = vaesimcq_u8(vaesdq_u8(*data, (uint8x16_t)_k.neon.k[2]));
*data = vaesimcq_u8(vaesdq_u8(*data, (uint8x16_t)_k.neon.k[1]));
*data = vaesdq_u8(*data, (uint8x16_t)_k.neon.k[0]);
}
#endif /*********************************************************************/
#ifdef ZT_AES_AESNI /********************************************************/ #ifdef ZT_AES_AESNI /********************************************************/
static inline __m128i _init256_1_aesni(__m128i a,__m128i b) static inline __m128i _init256_1_aesni(__m128i a,__m128i b)
@ -206,7 +321,6 @@ private:
} }
inline void _init_aesni(const uint8_t key[32]) inline void _init_aesni(const uint8_t key[32])
{ {
/* Init AES itself */
__m128i t1,t2; __m128i t1,t2;
_k.ni.k[0] = t1 = _mm_loadu_si128((const __m128i *)key); _k.ni.k[0] = t1 = _mm_loadu_si128((const __m128i *)key);
_k.ni.k[1] = t2 = _mm_loadu_si128((const __m128i *)(key+16)); _k.ni.k[1] = t2 = _mm_loadu_si128((const __m128i *)(key+16));
@ -237,7 +351,6 @@ private:
_k.ni.k[26] = _mm_aesimc_si128(_k.ni.k[2]); _k.ni.k[26] = _mm_aesimc_si128(_k.ni.k[2]);
_k.ni.k[27] = _mm_aesimc_si128(_k.ni.k[1]); _k.ni.k[27] = _mm_aesimc_si128(_k.ni.k[1]);
/* Init GCM / GHASH */
__m128i h = _mm_xor_si128(_mm_setzero_si128(),_k.ni.k[0]); __m128i h = _mm_xor_si128(_mm_setzero_si128(),_k.ni.k[0]);
h = _mm_aesenc_si128(h,_k.ni.k[1]); h = _mm_aesenc_si128(h,_k.ni.k[1]);
h = _mm_aesenc_si128(h,_k.ni.k[2]); h = _mm_aesenc_si128(h,_k.ni.k[2]);