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sm4: optimize constant loading on arm64

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Sun Yimin 2024-01-30 13:04:03 +08:00 committed by GitHub
parent d9591cf102
commit 515cabfd04
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1 changed files with 35 additions and 43 deletions
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68
sm4/aesni_macros_arm64.s
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@ -3,23 +3,16 @@ DATA inverse_shift_rows<>+0x00(SB)/8, $0x0B0E0104070A0D00
DATA inverse_shift_rows<>+0x08(SB)/8, $0x0306090C0F020508
GLOBL inverse_shift_rows<>(SB), (16+8), $16
// Affine transform 1 (low and high hibbles)
DATA m1_low<>+0x00(SB)/8, $0x0A7FC3B6D5A01C69
DATA m1_low<>+0x08(SB)/8, $0x3045F98CEF9A2653
GLOBL m1_low<>(SB), (16+8), $16
DATA m1_high<>+0x00(SB)/8, $0xC35BF46CAF379800
DATA m1_high<>+0x08(SB)/8, $0x68F05FC7049C33AB
GLOBL m1_high<>(SB), (16+8), $16
// Affine transform 2 (low and high hibbles)
DATA m2_low<>+0x00(SB)/8, $0x9A950A05FEF16E61
DATA m2_low<>+0x08(SB)/8, $0x0E019E916A65FAF5
GLOBL m2_low<>(SB), (16+8), $16
DATA m2_high<>+0x00(SB)/8, $0x892D69CD44E0A400
DATA m2_high<>+0x08(SB)/8, $0x2C88CC68E14501A5
GLOBL m2_high<>(SB), (16+8), $16
// Affine transform 1 & 2 (low and high nibbles)
DATA m1_2<>+0x00(SB)/8, $0x0A7FC3B6D5A01C69
DATA m1_2<>+0x08(SB)/8, $0x3045F98CEF9A2653
DATA m1_2<>+0x10(SB)/8, $0xC35BF46CAF379800
DATA m1_2<>+0x18(SB)/8, $0x68F05FC7049C33AB
DATA m1_2<>+0x20(SB)/8, $0x9A950A05FEF16E61
DATA m1_2<>+0x28(SB)/8, $0x0E019E916A65FAF5
DATA m1_2<>+0x30(SB)/8, $0x892D69CD44E0A400
DATA m1_2<>+0x38(SB)/8, $0x2C88CC68E14501A5
GLOBL m1_2<>(SB), (16+8), $64
// left rotations of 32-bit words by 8-bit increments
DATA r08_mask<>+0x00(SB)/8, $0x0605040702010003
@ -32,15 +25,9 @@ GLOBL fk_mask<>(SB), (16+8), $16
#define LOAD_SM4_AESNI_CONSTS() \
MOVW $0x0F0F0F0F, R20 \
VMOV R20, NIBBLE_MASK.S4 \
MOVD $m1_low<>(SB), R20 \
VLD1 (R20), [M1L.B16] \
MOVD $m1_high<>(SB), R20 \
VLD1 (R20), [M1H.B16] \
MOVD $m2_low<>(SB), R20 \
VLD1 (R20), [M2L.B16] \
MOVD $m2_high<>(SB), R20 \
VLD1 (R20), [M2H.B16] \
VDUP R20, NIBBLE_MASK.S4 \
MOVD $m1_2<>(SB), R20 \
VLD1 (R20), [M1L.B16, M1H.B16, M2L.B16, M2H.B16] \
MOVD $inverse_shift_rows<>(SB), R20 \
VLD1 (R20), [INVERSE_SHIFT_ROWS.B16] \
MOVD $r08_mask<>(SB), R20 \
@ -86,6 +73,21 @@ GLOBL fk_mask<>(SB), (16+8), $16
VZIP1 RTMP1.D2, RTMP3.D2, t2.D2 \
VZIP2 RTMP1.D2, RTMP3.D2, t3.D2
// Affine Transform
// parameters:
// - L: table low nibbles
// - H: table high nibbles
// - x: 128 bits register as sbox input/output data
// - y: 128 bits temp register
// - z: 128 bits temp register
#define AFFINE_TRANSFORM(L, H, x, y, z) \
VAND x.B16, NIBBLE_MASK.B16, z.B16; \
VTBL z.B16, [L.B16], y.B16; \
VUSHR $4, x.D2, x.D2; \
VAND x.B16, NIBBLE_MASK.B16, z.B16; \
VTBL z.B16, [H.B16], z.B16; \
VEOR y.B16, z.B16, x.B16
// SM4 sbox function
// parameters:
// - x: 128 bits register as sbox input/output data
@ -93,20 +95,10 @@ GLOBL fk_mask<>(SB), (16+8), $16
// - z: 128 bits temp register
#define SM4_SBOX(x, y, z) \
; \
VAND x.B16, NIBBLE_MASK.B16, z.B16; \
VTBL z.B16, [M1L.B16], y.B16; \
VUSHR $4, x.D2, x.D2; \
VAND x.B16, NIBBLE_MASK.B16, z.B16; \
VTBL z.B16, [M1H.B16], z.B16; \
VEOR y.B16, z.B16, x.B16; \
AFFINE_TRANSFORM(M1L, M1H, x, y, z); \
VTBL INVERSE_SHIFT_ROWS.B16, [x.B16], x.B16; \
AESE ZERO.B16, x.B16; \
VAND x.B16, NIBBLE_MASK.B16, z.B16; \
VTBL z.B16, [M2L.B16], y.B16; \
VUSHR $4, x.D2, x.D2; \
VAND x.B16, NIBBLE_MASK.B16, z.B16; \
VTBL z.B16, [M2H.B16], z.B16; \
VEOR y.B16, z.B16, x.B16
AFFINE_TRANSFORM(M2L, M2H, x, y, z)
// SM4 TAO L1 function
// parameters: