aboutsummaryrefslogtreecommitdiffhomepage
path: root/vendor/golang.org/x/crypto/argon2/blamka_generic.go
diff options
context:
space:
mode:
Diffstat (limited to 'vendor/golang.org/x/crypto/argon2/blamka_generic.go')
-rw-r--r--vendor/golang.org/x/crypto/argon2/blamka_generic.go163
1 files changed, 163 insertions, 0 deletions
diff --git a/vendor/golang.org/x/crypto/argon2/blamka_generic.go b/vendor/golang.org/x/crypto/argon2/blamka_generic.go
new file mode 100644
index 0000000..a481b22
--- /dev/null
+++ b/vendor/golang.org/x/crypto/argon2/blamka_generic.go
@@ -0,0 +1,163 @@
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package argon2
+
+var useSSE4 bool
+
+func processBlockGeneric(out, in1, in2 *block, xor bool) {
+ var t block
+ for i := range t {
+ t[i] = in1[i] ^ in2[i]
+ }
+ for i := 0; i < blockLength; i += 16 {
+ blamkaGeneric(
+ &t[i+0], &t[i+1], &t[i+2], &t[i+3],
+ &t[i+4], &t[i+5], &t[i+6], &t[i+7],
+ &t[i+8], &t[i+9], &t[i+10], &t[i+11],
+ &t[i+12], &t[i+13], &t[i+14], &t[i+15],
+ )
+ }
+ for i := 0; i < blockLength/8; i += 2 {
+ blamkaGeneric(
+ &t[i], &t[i+1], &t[16+i], &t[16+i+1],
+ &t[32+i], &t[32+i+1], &t[48+i], &t[48+i+1],
+ &t[64+i], &t[64+i+1], &t[80+i], &t[80+i+1],
+ &t[96+i], &t[96+i+1], &t[112+i], &t[112+i+1],
+ )
+ }
+ if xor {
+ for i := range t {
+ out[i] ^= in1[i] ^ in2[i] ^ t[i]
+ }
+ } else {
+ for i := range t {
+ out[i] = in1[i] ^ in2[i] ^ t[i]
+ }
+ }
+}
+
+func blamkaGeneric(t00, t01, t02, t03, t04, t05, t06, t07, t08, t09, t10, t11, t12, t13, t14, t15 *uint64) {
+ v00, v01, v02, v03 := *t00, *t01, *t02, *t03
+ v04, v05, v06, v07 := *t04, *t05, *t06, *t07
+ v08, v09, v10, v11 := *t08, *t09, *t10, *t11
+ v12, v13, v14, v15 := *t12, *t13, *t14, *t15
+
+ v00 += v04 + 2*uint64(uint32(v00))*uint64(uint32(v04))
+ v12 ^= v00
+ v12 = v12>>32 | v12<<32
+ v08 += v12 + 2*uint64(uint32(v08))*uint64(uint32(v12))
+ v04 ^= v08
+ v04 = v04>>24 | v04<<40
+
+ v00 += v04 + 2*uint64(uint32(v00))*uint64(uint32(v04))
+ v12 ^= v00
+ v12 = v12>>16 | v12<<48
+ v08 += v12 + 2*uint64(uint32(v08))*uint64(uint32(v12))
+ v04 ^= v08
+ v04 = v04>>63 | v04<<1
+
+ v01 += v05 + 2*uint64(uint32(v01))*uint64(uint32(v05))
+ v13 ^= v01
+ v13 = v13>>32 | v13<<32
+ v09 += v13 + 2*uint64(uint32(v09))*uint64(uint32(v13))
+ v05 ^= v09
+ v05 = v05>>24 | v05<<40
+
+ v01 += v05 + 2*uint64(uint32(v01))*uint64(uint32(v05))
+ v13 ^= v01
+ v13 = v13>>16 | v13<<48
+ v09 += v13 + 2*uint64(uint32(v09))*uint64(uint32(v13))
+ v05 ^= v09
+ v05 = v05>>63 | v05<<1
+
+ v02 += v06 + 2*uint64(uint32(v02))*uint64(uint32(v06))
+ v14 ^= v02
+ v14 = v14>>32 | v14<<32
+ v10 += v14 + 2*uint64(uint32(v10))*uint64(uint32(v14))
+ v06 ^= v10
+ v06 = v06>>24 | v06<<40
+
+ v02 += v06 + 2*uint64(uint32(v02))*uint64(uint32(v06))
+ v14 ^= v02
+ v14 = v14>>16 | v14<<48
+ v10 += v14 + 2*uint64(uint32(v10))*uint64(uint32(v14))
+ v06 ^= v10
+ v06 = v06>>63 | v06<<1
+
+ v03 += v07 + 2*uint64(uint32(v03))*uint64(uint32(v07))
+ v15 ^= v03
+ v15 = v15>>32 | v15<<32
+ v11 += v15 + 2*uint64(uint32(v11))*uint64(uint32(v15))
+ v07 ^= v11
+ v07 = v07>>24 | v07<<40
+
+ v03 += v07 + 2*uint64(uint32(v03))*uint64(uint32(v07))
+ v15 ^= v03
+ v15 = v15>>16 | v15<<48
+ v11 += v15 + 2*uint64(uint32(v11))*uint64(uint32(v15))
+ v07 ^= v11
+ v07 = v07>>63 | v07<<1
+
+ v00 += v05 + 2*uint64(uint32(v00))*uint64(uint32(v05))
+ v15 ^= v00
+ v15 = v15>>32 | v15<<32
+ v10 += v15 + 2*uint64(uint32(v10))*uint64(uint32(v15))
+ v05 ^= v10
+ v05 = v05>>24 | v05<<40
+
+ v00 += v05 + 2*uint64(uint32(v00))*uint64(uint32(v05))
+ v15 ^= v00
+ v15 = v15>>16 | v15<<48
+ v10 += v15 + 2*uint64(uint32(v10))*uint64(uint32(v15))
+ v05 ^= v10
+ v05 = v05>>63 | v05<<1
+
+ v01 += v06 + 2*uint64(uint32(v01))*uint64(uint32(v06))
+ v12 ^= v01
+ v12 = v12>>32 | v12<<32
+ v11 += v12 + 2*uint64(uint32(v11))*uint64(uint32(v12))
+ v06 ^= v11
+ v06 = v06>>24 | v06<<40
+
+ v01 += v06 + 2*uint64(uint32(v01))*uint64(uint32(v06))
+ v12 ^= v01
+ v12 = v12>>16 | v12<<48
+ v11 += v12 + 2*uint64(uint32(v11))*uint64(uint32(v12))
+ v06 ^= v11
+ v06 = v06>>63 | v06<<1
+
+ v02 += v07 + 2*uint64(uint32(v02))*uint64(uint32(v07))
+ v13 ^= v02
+ v13 = v13>>32 | v13<<32
+ v08 += v13 + 2*uint64(uint32(v08))*uint64(uint32(v13))
+ v07 ^= v08
+ v07 = v07>>24 | v07<<40
+
+ v02 += v07 + 2*uint64(uint32(v02))*uint64(uint32(v07))
+ v13 ^= v02
+ v13 = v13>>16 | v13<<48
+ v08 += v13 + 2*uint64(uint32(v08))*uint64(uint32(v13))
+ v07 ^= v08
+ v07 = v07>>63 | v07<<1
+
+ v03 += v04 + 2*uint64(uint32(v03))*uint64(uint32(v04))
+ v14 ^= v03
+ v14 = v14>>32 | v14<<32
+ v09 += v14 + 2*uint64(uint32(v09))*uint64(uint32(v14))
+ v04 ^= v09
+ v04 = v04>>24 | v04<<40
+
+ v03 += v04 + 2*uint64(uint32(v03))*uint64(uint32(v04))
+ v14 ^= v03
+ v14 = v14>>16 | v14<<48
+ v09 += v14 + 2*uint64(uint32(v09))*uint64(uint32(v14))
+ v04 ^= v09
+ v04 = v04>>63 | v04<<1
+
+ *t00, *t01, *t02, *t03 = v00, v01, v02, v03
+ *t04, *t05, *t06, *t07 = v04, v05, v06, v07
+ *t08, *t09, *t10, *t11 = v08, v09, v10, v11
+ *t12, *t13, *t14, *t15 = v12, v13, v14, v15
+}