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https://github.com/guanzhi/GmSSL.git
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Add SM4 AArch64 assembly
This commit is contained in:
Zhi Guan
@@ -1 +1,299 @@
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/*
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* Copyright 2014-2024 The GmSSL Project. All Rights Reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the License); you may
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* not use this file except in compliance with the License.
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*/
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.align 7
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LFK:
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.long 0xa3b1bac6, 0x56aa3350, 0x677d9197, 0xb27022dc
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LCK:
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.long 0x00070e15, 0x1c232a31, 0x383f464d, 0x545b6269
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.long 0x70777e85, 0x8c939aa1, 0xa8afb6bd, 0xc4cbd2d9
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.long 0xe0e7eef5, 0xfc030a11, 0x181f262d, 0x343b4249
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.long 0x50575e65, 0x6c737a81, 0x888f969d, 0xa4abb2b9
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.long 0xc0c7ced5, 0xdce3eaf1, 0xf8ff060d, 0x141b2229
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.long 0x30373e45, 0x4c535a61, 0x686f767d, 0x848b9299
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.long 0xa0a7aeb5, 0xbcc3cad1, 0xd8dfe6ed, 0xf4fb0209
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.long 0x10171e25, 0x2c333a41, 0x484f565d, 0x646b7279
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LSBOX:
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.byte 0xd6, 0x90, 0xe9, 0xfe, 0xcc, 0xe1, 0x3d, 0xb7
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.byte 0x16, 0xb6, 0x14, 0xc2, 0x28, 0xfb, 0x2c, 0x05
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.byte 0x2b, 0x67, 0x9a, 0x76, 0x2a, 0xbe, 0x04, 0xc3
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.byte 0xaa, 0x44, 0x13, 0x26, 0x49, 0x86, 0x06, 0x99
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.byte 0x9c, 0x42, 0x50, 0xf4, 0x91, 0xef, 0x98, 0x7a
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.byte 0x33, 0x54, 0x0b, 0x43, 0xed, 0xcf, 0xac, 0x62
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.byte 0xe4, 0xb3, 0x1c, 0xa9, 0xc9, 0x08, 0xe8, 0x95
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.byte 0x80, 0xdf, 0x94, 0xfa, 0x75, 0x8f, 0x3f, 0xa6
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.byte 0x47, 0x07, 0xa7, 0xfc, 0xf3, 0x73, 0x17, 0xba
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.byte 0x83, 0x59, 0x3c, 0x19, 0xe6, 0x85, 0x4f, 0xa8
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.byte 0x68, 0x6b, 0x81, 0xb2, 0x71, 0x64, 0xda, 0x8b
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.byte 0xf8, 0xeb, 0x0f, 0x4b, 0x70, 0x56, 0x9d, 0x35
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.byte 0x1e, 0x24, 0x0e, 0x5e, 0x63, 0x58, 0xd1, 0xa2
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.byte 0x25, 0x22, 0x7c, 0x3b, 0x01, 0x21, 0x78, 0x87
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.byte 0xd4, 0x00, 0x46, 0x57, 0x9f, 0xd3, 0x27, 0x52
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.byte 0x4c, 0x36, 0x02, 0xe7, 0xa0, 0xc4, 0xc8, 0x9e
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.byte 0xea, 0xbf, 0x8a, 0xd2, 0x40, 0xc7, 0x38, 0xb5
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.byte 0xa3, 0xf7, 0xf2, 0xce, 0xf9, 0x61, 0x15, 0xa1
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.byte 0xe0, 0xae, 0x5d, 0xa4, 0x9b, 0x34, 0x1a, 0x55
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.byte 0xad, 0x93, 0x32, 0x30, 0xf5, 0x8c, 0xb1, 0xe3
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.byte 0x1d, 0xf6, 0xe2, 0x2e, 0x82, 0x66, 0xca, 0x60
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.byte 0xc0, 0x29, 0x23, 0xab, 0x0d, 0x53, 0x4e, 0x6f
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.byte 0xd5, 0xdb, 0x37, 0x45, 0xde, 0xfd, 0x8e, 0x2f
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.byte 0x03, 0xff, 0x6a, 0x72, 0x6d, 0x6c, 0x5b, 0x51
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.byte 0x8d, 0x1b, 0xaf, 0x92, 0xbb, 0xdd, 0xbc, 0x7f
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.byte 0x11, 0xd9, 0x5c, 0x41, 0x1f, 0x10, 0x5a, 0xd8
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.byte 0x0a, 0xc1, 0x31, 0x88, 0xa5, 0xcd, 0x7b, 0xbd
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.byte 0x2d, 0x74, 0xd0, 0x12, 0xb8, 0xe5, 0xb4, 0xb0
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.byte 0x89, 0x69, 0x97, 0x4a, 0x0c, 0x96, 0x77, 0x7e
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.byte 0x65, 0xb9, 0xf1, 0x09, 0xc5, 0x6e, 0xc6, 0x84
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.byte 0x18, 0xf0, 0x7d, 0xec, 0x3a, 0xdc, 0x4d, 0x20
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.byte 0x79, 0xee, 0x5f, 0x3e, 0xd7, 0xcb, 0x39, 0x48
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// X0, X1, X2, X3 => X1, X2, X3, X0
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Llshift:
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.byte 4,5,6,7, 8,9,10,11, 12,13,14,15, 0,1,2,3
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.globl _sm4_set_encrypt_key
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.align 4
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_sm4_set_encrypt_key:
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// load const v16..v31 = SBox
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adr x3, LSBOX
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ld1 {v16.16b,v17.16b,v18.16b,v19.16b}, [x3], #64
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ld1 {v20.16b,v21.16b,v22.16b,v23.16b}, [x3], #64
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ld1 {v24.16b,v25.16b,v26.16b,v27.16b}, [x3], #64
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ld1 {v28.16b,v29.16b,v30.16b,v31.16b}, [x3]
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// load const v15 = [64, 64, ...]
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movi v15.16b, #64
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// load const v14 = lshift index
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adr x3, Llshift
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ld1 {v14.2d}, [x3]
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// load const v13 = FK
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adr x3, LFK
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ld1 {v13.2d}, [x3]
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// load const x5 = CK address
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adr x15, LCK
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// load user_key v1 = X0,X1,X2,X3
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ld1 {v1.4s}, [x1]
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rev32 v1.16b, v1.16b
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// X = X ^ FK
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eor v1.16b, v1.16b, v13.16b
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// x4(w4) as X4, x5(w5) as tmp
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// rounds = 32
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mov x6, #32
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1:
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// w4 = X1 ^ X2 ^ X3 ^ CK[0]
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mov w4, v1.s[1]
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mov w5, v1.s[2]
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eor w4, w4, w5
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mov w5, v1.s[3]
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eor w4, w4, w5
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ldr w5, [x15], #4
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eor w4, w4, w5
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// sbox lookup, X4 = w4 = v3[0] = sbox(v2[0])
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mov v2.s[0], w4
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tbl v3.16b, {v16.16b,v17.16b,v18.16b,v19.16b}, v2.16b
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sub v2.16b, v2.16b, v15.16b
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tbx v3.16b, {v20.16b,v21.16b,v22.16b,v23.16b}, v2.16b
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sub v2.16b, v2.16b, v15.16b
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tbx v3.16b, {v24.16b,v25.16b,v26.16b,v27.16b}, v2.16b
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sub v2.16b, v2.16b, v15.16b
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tbx v3.16b, {v28.16b,v29.16b,v30.16b,v31.16b}, v2.16b
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mov w4, v3.s[0]
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// X4 = X0 ^ X4 ^ (X4 <<< 13) ^ (X4 <<< 23)
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mov w5, v1.s[0]
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eor w5, w4, w5
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eor w5, w5, w4, ror #32-23
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eor w4, w5, w4, ror #32-13
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// output rk[i]
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str w4, [x0], #4
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// X1,X2,X3,X0 = X0,X1,X2,X3
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mov v1.s[0], w4
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tbl v1.16b, {v1.16b}, v14.16b
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// if --rounds != 0, goto label(1)
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subs x6, x6, #1
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b.ne 1b
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ret
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.globl _sm4_set_decrypt_key
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.align 4
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_sm4_set_decrypt_key:
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// load const v16..v31 = SBox
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adr x3,LSBOX
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ld1 {v16.16b,v17.16b,v18.16b,v19.16b},[x3],#64
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ld1 {v20.16b,v21.16b,v22.16b,v23.16b},[x3],#64
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ld1 {v24.16b,v25.16b,v26.16b,v27.16b},[x3],#64
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ld1 {v28.16b,v29.16b,v30.16b,v31.16b},[x3]
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// load const v15 = [64, 64, ...]
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movi v15.16b, #64
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// load const v14 = lshift index
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adr x3,Llshift
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ld1 {v14.2d},[x3]
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// load const v13 = FK
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adr x3,LFK
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ld1 {v13.2d},[x3]
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// load const x5 = CK address
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adr x15,LCK
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// load user_key v1 = X0,X1,X2,X3
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ld1 {v1.4s}, [x1]
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rev32 v1.16b, v1.16b
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// X = X ^ FK
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eor v1.16b, v1.16b, v13.16b
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// x4(w4) as X4, x5(w5) as tmp
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// rounds = 32
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mov x6, #32
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// set rk offset (31 * 4 = 124)
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add x0, x0, 124
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2:
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// w4 = X1 ^ X2 ^ X3 ^ CK[0]
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mov w4, v1.s[1]
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mov w5, v1.s[2]
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eor w4, w4, w5
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mov w5, v1.s[3]
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eor w4, w4, w5
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ldr w5, [x15], #4
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eor w4, w4, w5
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// sbox lookup, X4 = w4 = v3[0] = sbox(v2[0])
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mov v2.s[0], w4
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tbl v3.16b, {v16.16b,v17.16b,v18.16b,v19.16b},v2.16b
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sub v2.16b, v2.16b, v15.16b
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tbx v3.16b, {v20.16b,v21.16b,v22.16b,v23.16b},v2.16b
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sub v2.16b, v2.16b, v15.16b
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tbx v3.16b, {v24.16b,v25.16b,v26.16b,v27.16b},v2.16b
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sub v2.16b, v2.16b, v15.16b
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tbx v3.16b, {v28.16b,v29.16b,v30.16b,v31.16b},v2.16b
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mov w4, v3.s[0]
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// X4 = X0 ^ X4 ^ (X4 <<< 13) ^ (X4 <<< 23)
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mov w5, v1.s[0]
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eor w5, w4, w5
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eor w5, w5, w4, ror #32-23
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eor w4, w5, w4, ror #32-13
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// output rk[31 - i]
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str w4, [x0], #-4
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// X1,X2,X3,X0 = X0,X1,X2,X3
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mov v1.s[0], w4
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tbl v1.16b,{v1.16b},v14.16b
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// if --rounds != 0, goto label(1)
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subs x6, x6, #1
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b.ne 2b
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ret
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.globl _sm4_encrypt
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.align 5
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_sm4_encrypt:
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// load sbox
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adr x3, LSBOX
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ld1 {v16.16b,v17.16b,v18.16b,v19.16b}, [x3], #64
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ld1 {v20.16b,v21.16b,v22.16b,v23.16b}, [x3], #64
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ld1 {v24.16b,v25.16b,v26.16b,v27.16b}, [x3], #64
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ld1 {v28.16b,v29.16b,v30.16b,v31.16b}, [x3]
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// load const v15 = [64, 64, ...]
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movi v15.16b, #64
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// load input block
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ld1 {v1.4s}, [x1]
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rev32 v1.16b, v1.16b
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// w10,w11,w12,w13 = X0,X1,X2,X3
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mov w10, v1.s[0]
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mov w11, v1.s[1]
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mov w12, v1.s[2]
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mov w13, v1.s[3]
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// w8,w9 as tmp
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// round = 32
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mov w6, #32
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3:
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// load rk[i]
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ldr w3,[x0],4
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// X4 = (X2 ^ X3) ^ (RK[0] ^ X1)
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eor w8, w12, w13
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eor w9, w3, w11
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eor w8, w8, w9
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// sbox lookup, X4 = SBOX(X4)
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mov v2.s[0], w8
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tbl v3.16b, {v16.16b,v17.16b,v18.16b,v19.16b}, v2.16b
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sub v2.16b, v2.16b, v15.16b
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tbx v3.16b, {v20.16b,v21.16b,v22.16b,v23.16b}, v2.16b
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sub v2.16b, v2.16b, v15.16b
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tbx v3.16b, {v24.16b,v25.16b,v26.16b,v27.16b}, v2.16b
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sub v2.16b, v2.16b, v15.16b
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tbx v3.16b, {v28.16b,v29.16b,v30.16b,v31.16b}, v2.16b
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mov w3, v3.s[0]
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// X0 = X0 ^ X4 ^ (X4 <<< 2) ^ (X4 <<< 10) ^ (X4 <<< 18) ^ (X <<< 24)
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eor w8, w3, w3, ror #32-2
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eor w8, w8, w3, ror #32-10
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eor w8, w8, w3, ror #32-18
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eor w8, w8, w3, ror #32-24
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eor w8, w8, w10
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mov w10, w11
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mov w11, w12
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mov w12, w13
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mov w13, w8
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subs w6, w6, #1
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b.ne 3b
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// output X3,X2,X1,X0
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mov v1.s[0], w13
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mov v1.s[1], w12
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mov v1.s[2], w11
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mov v1.s[3], w10
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rev32 v1.16b, v1.16b
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st1 {v1.4s}, [x2]
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ret
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