418 lines
11 KiB
NASM
418 lines
11 KiB
NASM
; libcrash -- cryptographic hash functions
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;
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; Copyright (C) 2013,2016 Ivan Baravy (dunkaist)
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;
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; This program is free software: you can redistribute it and/or modify
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; it under the terms of the GNU General Public License as published by
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; the Free Software Foundation, either version 3 of the License, or
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; (at your option) any later version.
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;
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; This program is distributed in the hope that it will be useful,
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; but WITHOUT ANY WARRANTY; without even the implied warranty of
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; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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; GNU General Public License for more details.
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;
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; You should have received a copy of the GNU General Public License
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; along with this program. If not, see <http://www.gnu.org/licenses/>.
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macro sha3._.rol_xor nd, ncl, ncr
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{
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movq mm0, [C + 8*(ncl)]
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movq mm1, mm0
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psllq mm0, 1
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psrlq mm1, 63
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por mm0, mm1
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pxor mm0, [C + 8*(ncr)]
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movq [D + 8*(nd)], mm0
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}
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proc sha3._.theta
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;locals
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; C rq 5
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; D rq 5
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;endl
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C equ ebx + ctx_sha3.C
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D equ ebx + ctx_sha3.D
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repeat 5
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movq mm0, [edi + 8*(%-1 + 0)]
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pxor mm0, [edi + 8*(%-1 + 5)]
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pxor mm0, [edi + 8*(%-1 + 10)]
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pxor mm0, [edi + 8*(%-1 + 15)]
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pxor mm0, [edi + 8*(%-1 + 20)]
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movq [C + 8*(%-1)], mm0
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end repeat
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sha3._.rol_xor 0, 1, 4
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sha3._.rol_xor 1, 2, 0
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sha3._.rol_xor 2, 3, 1
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sha3._.rol_xor 3, 4, 2
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sha3._.rol_xor 4, 0, 3
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repeat 5
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movq mm1, [D + 8*(%-1)]
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movq mm0, mm1
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pxor mm0, [edi + 8*(%-1 + 0)]
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movq [edi + 8*(%-1 + 0)], mm0
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movq mm0, mm1
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pxor mm0, [edi + 8*(%-1 + 5)]
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movq [edi + 8*(%-1 + 5)], mm0
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movq mm0, mm1
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pxor mm0, [edi + 8*(%-1 + 10)]
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movq [edi + 8*(%-1 + 10)], mm0
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movq mm0, mm1
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pxor mm0, [edi + 8*(%-1 + 15)]
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movq [edi + 8*(%-1 + 15)], mm0
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movq mm0, mm1
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pxor mm0, [edi + 8*(%-1 + 20)]
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movq [edi + 8*(%-1 + 20)], mm0
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end repeat
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restore C,D
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ret
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endp
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proc sha3._.pi
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movq mm1, [edi + 8*1]
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movq mm0, [edi + 8*6]
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movq [edi + 8*1], mm0
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movq mm0, [edi + 8*9]
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movq [edi + 8*6], mm0
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movq mm0, [edi + 8*22]
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movq [edi + 8*9], mm0
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movq mm0, [edi + 8*14]
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movq [edi + 8*22], mm0
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movq mm0, [edi + 8*20]
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movq [edi + 8*14], mm0
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movq mm0, [edi + 8*2]
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movq [edi + 8*20], mm0
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movq mm0, [edi + 8*12]
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movq [edi + 8*2], mm0
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movq mm0, [edi + 8*13]
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movq [edi + 8*12], mm0
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movq mm0, [edi + 8*19]
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movq [edi + 8*13], mm0
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movq mm0, [edi + 8*23]
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movq [edi + 8*19], mm0
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movq mm0, [edi + 8*15]
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movq [edi + 8*23], mm0
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movq mm0, [edi + 8*4]
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movq [edi + 8*15], mm0
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movq mm0, [edi + 8*24]
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movq [edi + 8*4], mm0
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movq mm0, [edi + 8*21]
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movq [edi + 8*24], mm0
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movq mm0, [edi + 8*8]
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movq [edi + 8*21], mm0
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movq mm0, [edi + 8*16]
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movq [edi + 8*8], mm0
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movq mm0, [edi + 8*5]
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movq [edi + 8*16], mm0
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movq mm0, [edi + 8*3]
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movq [edi + 8*5], mm0
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movq mm0, [edi + 8*18]
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movq [edi + 8*3], mm0
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movq mm0, [edi + 8*17]
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movq [edi + 8*18], mm0
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movq mm0, [edi + 8*11]
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movq [edi + 8*17], mm0
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movq mm0, [edi + 8*7]
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movq [edi + 8*11], mm0
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movq mm0, [edi + 8*10]
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movq [edi + 8*7], mm0
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movq [edi + 8*10], mm1
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ret
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endp
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proc sha3._.chi
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mov eax, 0xffffffff
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movd mm0, eax
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movq mm2, mm0
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punpckldq mm2, mm0
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repeat 5
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movq mm6, [edi + 8*(0 + 5*(%-1))]
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movq mm7, [edi + 8*(1 + 5*(%-1))]
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movq mm0, [edi + 8*(0 + 5*(%-1))]
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movq mm1, mm7
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pandn mm1, mm2
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pand mm1, [edi + 8*(2 + 5*(%-1))]
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pxor mm0, mm1
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movq [edi + 8*(0 + 5*(%-1))], mm0
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movq mm0, [edi + 8*(1 + 5*(%-1))]
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movq mm1, [edi + 8*(2 + 5*(%-1))]
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pandn mm1, mm2
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pand mm1, [edi + 8*(3 + 5*(%-1))]
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pxor mm0, mm1
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movq [edi + 8*(1 + 5*(%-1))], mm0
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movq mm0, [edi + 8*(2 + 5*(%-1))]
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movq mm1, [edi + 8*(3 + 5*(%-1))]
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pandn mm1, mm2
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pand mm1, [edi + 8*(4 + 5*(%-1))]
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pxor mm0, mm1
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movq [edi + 8*(2 + 5*(%-1))], mm0
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movq mm0, [edi + 8*(3 + 5*(%-1))]
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movq mm1, [edi + 8*(4 + 5*(%-1))]
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pandn mm1, mm2
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pand mm1, mm6
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pxor mm0, mm1
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movq [edi + 8*(3 + 5*(%-1))], mm0
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movq mm0, [edi + 8*(4 + 5*(%-1))]
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movq mm1, mm6
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pandn mm1, mm2
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pand mm1, mm7
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pxor mm0, mm1
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movq [edi + 8*(4 + 5*(%-1))], mm0
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end repeat
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ret
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endp
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macro sha3._.rol_mov n, c
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{
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movq mm0, [edi + 8*(n)]
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movq mm1, mm0
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psllq mm0, (c)
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psrlq mm1, (64-(c))
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por mm0, mm1
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movq [edi + 8*(n)], mm0
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}
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proc sha3._.permutation
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repeat 24
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stdcall sha3._.theta
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sha3._.rol_mov 1, 1
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sha3._.rol_mov 2, 62
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sha3._.rol_mov 3, 28
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sha3._.rol_mov 4, 27
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sha3._.rol_mov 5, 36
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sha3._.rol_mov 6, 44
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sha3._.rol_mov 7, 6
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sha3._.rol_mov 8, 55
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sha3._.rol_mov 9, 20
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sha3._.rol_mov 10, 3
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sha3._.rol_mov 11, 10
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sha3._.rol_mov 12, 43
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sha3._.rol_mov 13, 25
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sha3._.rol_mov 14, 39
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sha3._.rol_mov 15, 41
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sha3._.rol_mov 16, 45
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sha3._.rol_mov 17, 15
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sha3._.rol_mov 18, 21
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sha3._.rol_mov 19, 8
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sha3._.rol_mov 20, 18
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sha3._.rol_mov 21, 2
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sha3._.rol_mov 22, 61
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sha3._.rol_mov 23, 56
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sha3._.rol_mov 24, 14
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stdcall sha3._.pi
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stdcall sha3._.chi
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movq mm0, [edi + 8*(0)]
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pxor mm0, [sha3._.round + 8*(%-1)]
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movq [edi + 8*(0)], mm0
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end repeat
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ret
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endp
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proc sha3._.init _ctx
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mov [ebx + ctx_sha3.block_size], eax
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shr eax, 3
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dec eax
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mov [ebx + ctx_sha3.rounds_cnt], eax
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xor eax, eax
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lea edi, [ebx + ctx_sha3.hash]
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mov ecx, SHA3_INIT_SIZE/4
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rep stosd
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mov [ebx + ctx_sha3.index], eax
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ret
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endp
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proc sha3224.init _ctx
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mov ebx, [_ctx]
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mov eax, SHA3224_BLOCK_SIZE
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stdcall sha3._.init
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ret
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endp
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proc sha3256.init _ctx
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mov ebx, [_ctx]
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mov eax, SHA3256_BLOCK_SIZE
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stdcall sha3._.init
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ret
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endp
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proc sha3384.init _ctx
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mov ebx, [_ctx]
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mov eax, SHA3384_BLOCK_SIZE
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stdcall sha3._.init
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ret
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endp
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proc sha3512.init _ctx
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mov ebx, [_ctx]
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mov eax, SHA3512_BLOCK_SIZE
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stdcall sha3._.init
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ret
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endp
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proc sha3._.block _hash
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mov ecx, [ebx + ctx_sha3.rounds_cnt]
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mov edi, [_hash]
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@@:
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movq mm0, [esi + 8*ecx]
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pxor mm0, [edi + 8*ecx]
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movq [edi + 8*ecx], mm0
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dec ecx
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jns @b
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stdcall sha3._.permutation
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ret
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endp
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sha3224.update = sha3.update
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sha3256.update = sha3.update
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sha3384.update = sha3.update
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sha3512.update = sha3.update
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proc sha3.update _ctx, _msg, _size
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.next_block:
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mov ebx, [_ctx]
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mov esi, [_msg]
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mov eax, [ebx + ctx_sha3.index]
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test eax, eax
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jnz .copy_to_buf
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test esi, SHA3_ALIGN_MASK
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jnz .copy_to_buf
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.no_copy:
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; data is aligned, hash it in place without copying
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mov ebx, [_ctx]
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mov eax, [ebx + ctx_sha3.block_size]
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cmp [_size], eax
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jb .copy_quit
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lea eax, [ebx + ctx_sha3.hash]
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push ebx esi
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stdcall sha3._.block, eax
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pop esi ebx
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mov eax, [ebx + ctx_sha3.block_size]
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sub [_size], eax
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add esi, [ebx + ctx_sha3.block_size]
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jmp .no_copy
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.copy_to_buf:
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lea edi, [ebx + ctx_sha3.block]
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add edi, eax
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mov ecx, [ebx + ctx_sha3.block_size]
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sub ecx, eax
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cmp [_size], ecx
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jb .copy_quit
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sub [_size], ecx
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add [_msg], ecx
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add [ebx + ctx_sha3.index], ecx
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mov eax, [ebx + ctx_sha3.block_size]
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cmp [ebx + ctx_sha3.index], eax
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jb @f
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sub [ebx + ctx_sha3.index], eax
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@@:
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rep movsb
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lea eax, [ebx + ctx_sha3.hash]
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lea esi, [ebx + ctx_sha3.block]
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stdcall sha3._.block, eax
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jmp .next_block
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.copy_quit:
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mov ebx, [_ctx]
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lea edi, [ebx + ctx_sha3.block]
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mov eax, [ebx + ctx_sha3.index]
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add edi, eax
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mov ecx, [_size]
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add [ebx + ctx_sha3.index], ecx
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rep movsb
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.quit:
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ret
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endp
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sha3224.final = sha3.final
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sha3256.final = sha3.final
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sha3384.final = sha3.final
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sha3512.final = sha3.final
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proc sha3.final _ctx
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pushad
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mov ebx, [_ctx]
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mov eax, [ebx + ctx_sha3.index]
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xor edx, edx
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mov ecx, [ebx + ctx_sha3.block_size]
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div ecx
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sub ecx, edx
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ja @f
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add ecx, [ebx + ctx_sha3.block_size]
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@@:
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add [ebx + ctx_sha3.index], ecx
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mov eax, [ebx + ctx_sha3.block_size]
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cmp [ebx + ctx_sha3.index], eax
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jb @f
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sub [ebx + ctx_sha3.index], eax
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@@:
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mov byte[edi], 0x06
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inc edi
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dec ecx
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xor eax, eax
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rep stosb
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or byte[edi - 1], 0x80
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mov ebx, [_ctx]
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lea esi, [ebx + ctx_sha3.block]
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lea eax, [ebx + ctx_sha3.hash]
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stdcall sha3._.block, eax
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mov ebx, [_ctx]
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lea eax, [ebx + ctx_sha3.hash]
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stdcall sha3._.postprocess, ebx, eax
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popad
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ret
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endp
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proc sha3._.postprocess _ctx, _hash
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emms
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ret
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endp
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align SHA3_ALIGN
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sha3._.round dq 0x0000000000000001, 0x0000000000008082, 0x800000000000808A,\
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0x8000000080008000, 0x000000000000808B, 0x0000000080000001,\
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0x8000000080008081, 0x8000000000008009, 0x000000000000008A,\
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0x0000000000000088, 0x0000000080008009, 0x000000008000000A,\
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0x000000008000808B, 0x800000000000008B, 0x8000000000008089,\
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0x8000000000008003, 0x8000000000008002, 0x8000000000000080,\
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0x000000000000800A, 0x800000008000000A, 0x8000000080008081,\
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0x8000000000008080, 0x0000000080000001, 0x8000000080008008
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