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[SM4] try arm64 gcmSm4Init
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Emman
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@ -107,71 +107,45 @@ TEXT ·gcmSm4Finish(SB),NOSPLIT,$0
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#undef dlen
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#define SM4_SBOX(x, y, z, z1, z2) \
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MOVD $0x0F0F0F0F0F0F0F0F, R19; \
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VMOV R19, z1.D2; \ // nibble mask
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VMOVQ $0x0F0F0F0F0F0F0F0F, $0x0F0F0F0F0F0F0F0F, z1; \ // nibble mask
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VAND x.B16, z1.B16, z2.B16; \
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MOVD $0x9197E2E474720701, R19; \
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VMOV R19, z.D[0]; \
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MOVD $0xC7C1B4B222245157, R19; \
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VMOV R19, z.D[1]; \ // m1 low
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VMOVQ $0xC7C1B4B222245157, $0x9197E2E474720701, z; \
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VTBL z2.B16, [z.B16], y.B16; \
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VUSHR $4, x.D2, x.D2; \
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VAND x.B16, z1.B16, z2.B16; \
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MOVD $0xE240AB09EB49A200, R19; \
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VMOV R19, z.D[0]; \
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MOVD $0xF052B91BF95BB012, R19; \
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VMOV R19, z.D[1]; \ // m1 high
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VMOVQ $0xF052B91BF95BB012, $0xE240AB09EB49A200, z; \
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VTBL z2.B16, [z.B16], z2.B16; \
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VEOR y.B16, z2.B16, x.B16; \
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MOVD $0x0B0E0104070A0D00, R19; \
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VMOV R19, z.D[0]; \
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MOVD $0x0306090C0F020508, R19; \
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VMOV R19, z.D[1]; \ // inverse shift row
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VMOVQ $0x0306090C0F020508, $0x0B0E0104070A0D00, z; \
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VTBL z.B16, [x.B16], x.B16; \
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AESE ZERO.B16, x.B16; \
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VAND x.B16, z1.B16, z2.B16; \
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MOVD $0x5B67F2CEA19D0834, R19; \
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VMOV R19, z.D[0]; \
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MOVD $0xEDD14478172BBE82, R19; \
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VMOV R19, z.D[1]; \ // m2 low
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VMOVQ $0xEDD14478172BBE82, $0x5B67F2CEA19D0834, z; \
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VTBL z2.B16, [z.B16], y.B16; \
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VUSHR $4, x.D2, x.D2; \
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VAND x.B16, z1.B16, z2.B16; \
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MOVD $0xAE7201DD73AFDC00, R19; \
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VMOV R19, z.D[0]; \
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MOVD $0x11CDBE62CC1063BF, R19; \
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VMOV R19, z.D[1]; \ // m2 high
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VMOVQ $0x11CDBE62CC1063BF, $0xAE7201DD73AFDC00, z; \
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VTBL z2.B16, [z.B16], z2.B16; \
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VEOR y.B16, z2.B16, x.B16
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#define SM4_TAO_L1(x, y, z, z1, z2) \
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SM4_SBOX(x, y, z, z1, z2); \
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; \
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MOVD $0x0605040702010003, R19; \
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VMOV R19, z.D[0]; \
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MOVD $0x0E0D0C0F0A09080B, R19; \
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VMOV R19, z.D[1]; \ // r08 mask
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VMOVQ $0x0E0D0C0F0A09080B, $0x0605040702010003, z; \
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VTBL z.B16, [x.B16], y.B16; \
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VEOR y.B16, x.B16, y.B16; \
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MOVD $0x0504070601000302, R19; \
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VMOV R19, z.D[0]; \
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MOVD $0x0D0C0F0E09080B0A, R19; \
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VMOV R19, z.D[1]; \ // r16 mask
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VMOVQ $0x0D0C0F0E09080B0A, $0x0504070601000302, z; \
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VTBL z.B16, [x.B16], z.B16; \
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VEOR z.B16, y.B16, y.B16; \
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VSHL $2, y.S4, z.S4; \
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VUSHR $30, y.S4, y.S4; \
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VORR y.B16, z.B16, y.B16; \
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MOVD $0x0407060500030201, R19; \
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VMOV R19, z.D[0]; \
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MOVD $0x0C0F0E0D080B0A09, R19; \
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VMOV R19, z.D[1]; \ // r24 mask
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VMOVQ $0x0C0F0E0D080B0A09, $0x0407060500030201, z; \
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VTBL z.B16, [x.B16], z.B16; \
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VEOR z.B16, x.B16, x.B16; \
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VEOR y.B16, x.B16, x.B16
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#define SM4_ROUND(RK, x, y, z, z1, z2, t0, t1, t2, t3) \
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MOVW.P 4(RK), R19; \
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#define SM4_ROUND(index, RK, x, y, z, z1, z2, t0, t1, t2, t3) \
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MOVW (index*4)(RK), R19; \
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VMOV R19, x.S4; \
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VEOR t1.B16, x.B16, x.B16; \
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VEOR t2.B16, x.B16, x.B16; \
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@ -179,10 +153,10 @@ TEXT ·gcmSm4Finish(SB),NOSPLIT,$0
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SM4_TAO_L1(x, y, z, z1, z2); \
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VEOR x.B16, t0.B16, t0.B16
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// func precomputeTableAsm(productTable *[256]byte, src *[16]byte)
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TEXT ·precomputeTableAsm(SB),NOSPLIT,$0
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// func gcmSm4Init(productTable *[256]byte, rk []uint32)
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TEXT ·gcmSm4Init(SB),NOSPLIT,$0
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#define pTbl R0
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#define SRC R1
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#define RK R1
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#define I R2
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MOVD productTable+0(FP), pTbl
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@ -195,8 +169,27 @@ TEXT ·precomputeTableAsm(SB),NOSPLIT,$0
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VMOV I, POLY.D[1]
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VEOR ZERO.B16, ZERO.B16, ZERO.B16
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VLD1 (SRC), [B0.B16]
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VREV64 B0.B16, B0.B16
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// Encrypt block 0 with the SM4 keys to generate the hash key H
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VEOR B0.B16, B0.B16, B0.B16
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VEOR B1.B16, B1.B16, B1.B16
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VEOR B2.B16, B2.B16, B2.B16
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VEOR B3.B16, B3.B16, B3.B16
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EOR R3, R3
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sm4InitEncLoop:
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SM4_ROUND(0, RK, K0, K1, K2, K3, K4, B0, B1, B2, B3)
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SM4_ROUND(1, RK, K0, K1, K2, K3, K4, B1, B2, B3, B0)
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SM4_ROUND(2, RK, K0, K1, K2, K3, K4, B2, B3, B0, B1)
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SM4_ROUND(3, RK, K0, K1, K2, K3, K4, B3, B0, B1, B2)
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ADD $16, R3
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CMP $128, R3
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BNE sm4InitEncLoop
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VMOV B0.S[0], B0.S[2]
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VMOV B1.S[0], B0.S[3]
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VMOV B2.S[0], B0.S[0]
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VMOV B3.S[0], B0.S[1]
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// Multiply by 2 modulo P
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VMOV B0.D[0], I
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@ -254,7 +247,7 @@ initLoop:
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BNE initLoop
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RET
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#undef I
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#undef SRC
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#undef RK
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#undef pTbl
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// func gcmSm4Data(productTable *[256]byte, data []byte, T *[16]byte)
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@ -21,7 +21,7 @@ type sm4CipherGCM struct {
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var _ gcmAble = (*sm4CipherGCM)(nil)
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//go:noescape
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func precomputeTableAsm(productTable *[256]byte, src *[16]byte)
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func gcmSm4Init(productTable *[256]byte, rk []uint32)
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//go:noescape
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func gcmSm4Data(productTable *[256]byte, data []byte, T *[16]byte)
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@ -41,9 +41,7 @@ func (c *sm4CipherGCM) NewGCM(nonceSize, tagSize int) (cipher.AEAD, error) {
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g.cipher = &c.sm4CipherAsm
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g.nonceSize = nonceSize
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g.tagSize = tagSize
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var key [gcmBlockSize]byte
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c.Encrypt(key[:], key[:])
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precomputeTableAsm(&g.bytesProductTable, &key)
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gcmSm4Init(&g.bytesProductTable, g.cipher.enc)
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return g, nil
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}
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@ -1,5 +1,5 @@
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//go:build amd64
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// +build amd64
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//go:build amd64 || arm64
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// +build amd64 arm64
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package sm4
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