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164 lines
4.3 KiB
164 lines
4.3 KiB
4 years ago
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// Copyright 2017 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package argon2
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var useSSE4 bool
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func processBlockGeneric(out, in1, in2 *block, xor bool) {
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var t block
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for i := range t {
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t[i] = in1[i] ^ in2[i]
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}
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for i := 0; i < blockLength; i += 16 {
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blamkaGeneric(
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&t[i+0], &t[i+1], &t[i+2], &t[i+3],
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&t[i+4], &t[i+5], &t[i+6], &t[i+7],
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&t[i+8], &t[i+9], &t[i+10], &t[i+11],
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&t[i+12], &t[i+13], &t[i+14], &t[i+15],
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)
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}
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for i := 0; i < blockLength/8; i += 2 {
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blamkaGeneric(
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&t[i], &t[i+1], &t[16+i], &t[16+i+1],
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&t[32+i], &t[32+i+1], &t[48+i], &t[48+i+1],
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&t[64+i], &t[64+i+1], &t[80+i], &t[80+i+1],
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&t[96+i], &t[96+i+1], &t[112+i], &t[112+i+1],
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)
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}
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if xor {
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for i := range t {
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out[i] ^= in1[i] ^ in2[i] ^ t[i]
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}
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} else {
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for i := range t {
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out[i] = in1[i] ^ in2[i] ^ t[i]
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}
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}
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}
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func blamkaGeneric(t00, t01, t02, t03, t04, t05, t06, t07, t08, t09, t10, t11, t12, t13, t14, t15 *uint64) {
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v00, v01, v02, v03 := *t00, *t01, *t02, *t03
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v04, v05, v06, v07 := *t04, *t05, *t06, *t07
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v08, v09, v10, v11 := *t08, *t09, *t10, *t11
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v12, v13, v14, v15 := *t12, *t13, *t14, *t15
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v00 += v04 + 2*uint64(uint32(v00))*uint64(uint32(v04))
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v12 ^= v00
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v12 = v12>>32 | v12<<32
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v08 += v12 + 2*uint64(uint32(v08))*uint64(uint32(v12))
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v04 ^= v08
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v04 = v04>>24 | v04<<40
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v00 += v04 + 2*uint64(uint32(v00))*uint64(uint32(v04))
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v12 ^= v00
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v12 = v12>>16 | v12<<48
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v08 += v12 + 2*uint64(uint32(v08))*uint64(uint32(v12))
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v04 ^= v08
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v04 = v04>>63 | v04<<1
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v01 += v05 + 2*uint64(uint32(v01))*uint64(uint32(v05))
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v13 ^= v01
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v13 = v13>>32 | v13<<32
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v09 += v13 + 2*uint64(uint32(v09))*uint64(uint32(v13))
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v05 ^= v09
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v05 = v05>>24 | v05<<40
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v01 += v05 + 2*uint64(uint32(v01))*uint64(uint32(v05))
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v13 ^= v01
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v13 = v13>>16 | v13<<48
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v09 += v13 + 2*uint64(uint32(v09))*uint64(uint32(v13))
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v05 ^= v09
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v05 = v05>>63 | v05<<1
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v02 += v06 + 2*uint64(uint32(v02))*uint64(uint32(v06))
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v14 ^= v02
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v14 = v14>>32 | v14<<32
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v10 += v14 + 2*uint64(uint32(v10))*uint64(uint32(v14))
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v06 ^= v10
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v06 = v06>>24 | v06<<40
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v02 += v06 + 2*uint64(uint32(v02))*uint64(uint32(v06))
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v14 ^= v02
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v14 = v14>>16 | v14<<48
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v10 += v14 + 2*uint64(uint32(v10))*uint64(uint32(v14))
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v06 ^= v10
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v06 = v06>>63 | v06<<1
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v03 += v07 + 2*uint64(uint32(v03))*uint64(uint32(v07))
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v15 ^= v03
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v15 = v15>>32 | v15<<32
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v11 += v15 + 2*uint64(uint32(v11))*uint64(uint32(v15))
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v07 ^= v11
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v07 = v07>>24 | v07<<40
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v03 += v07 + 2*uint64(uint32(v03))*uint64(uint32(v07))
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v15 ^= v03
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v15 = v15>>16 | v15<<48
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v11 += v15 + 2*uint64(uint32(v11))*uint64(uint32(v15))
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v07 ^= v11
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v07 = v07>>63 | v07<<1
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v00 += v05 + 2*uint64(uint32(v00))*uint64(uint32(v05))
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v15 ^= v00
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v15 = v15>>32 | v15<<32
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v10 += v15 + 2*uint64(uint32(v10))*uint64(uint32(v15))
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v05 ^= v10
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v05 = v05>>24 | v05<<40
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v00 += v05 + 2*uint64(uint32(v00))*uint64(uint32(v05))
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v15 ^= v00
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v15 = v15>>16 | v15<<48
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v10 += v15 + 2*uint64(uint32(v10))*uint64(uint32(v15))
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v05 ^= v10
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v05 = v05>>63 | v05<<1
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v01 += v06 + 2*uint64(uint32(v01))*uint64(uint32(v06))
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v12 ^= v01
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v12 = v12>>32 | v12<<32
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v11 += v12 + 2*uint64(uint32(v11))*uint64(uint32(v12))
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v06 ^= v11
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v06 = v06>>24 | v06<<40
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v01 += v06 + 2*uint64(uint32(v01))*uint64(uint32(v06))
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v12 ^= v01
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v12 = v12>>16 | v12<<48
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v11 += v12 + 2*uint64(uint32(v11))*uint64(uint32(v12))
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v06 ^= v11
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v06 = v06>>63 | v06<<1
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v02 += v07 + 2*uint64(uint32(v02))*uint64(uint32(v07))
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v13 ^= v02
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v13 = v13>>32 | v13<<32
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v08 += v13 + 2*uint64(uint32(v08))*uint64(uint32(v13))
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v07 ^= v08
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v07 = v07>>24 | v07<<40
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v02 += v07 + 2*uint64(uint32(v02))*uint64(uint32(v07))
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v13 ^= v02
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v13 = v13>>16 | v13<<48
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v08 += v13 + 2*uint64(uint32(v08))*uint64(uint32(v13))
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v07 ^= v08
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v07 = v07>>63 | v07<<1
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v03 += v04 + 2*uint64(uint32(v03))*uint64(uint32(v04))
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v14 ^= v03
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v14 = v14>>32 | v14<<32
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v09 += v14 + 2*uint64(uint32(v09))*uint64(uint32(v14))
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v04 ^= v09
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v04 = v04>>24 | v04<<40
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v03 += v04 + 2*uint64(uint32(v03))*uint64(uint32(v04))
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v14 ^= v03
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v14 = v14>>16 | v14<<48
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v09 += v14 + 2*uint64(uint32(v09))*uint64(uint32(v14))
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v04 ^= v09
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v04 = v04>>63 | v04<<1
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*t00, *t01, *t02, *t03 = v00, v01, v02, v03
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*t04, *t05, *t06, *t07 = v04, v05, v06, v07
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*t08, *t09, *t10, *t11 = v08, v09, v10, v11
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*t12, *t13, *t14, *t15 = v12, v13, v14, v15
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}
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