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Revert "crypto/blake2b: put architecture-dependent features behind build-tag (#28381)"

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This reverts commit 5e9d8bdd73.
This commit is contained in:
devopsbo3 2023-11-10 12:27:53 -06:00 committed by GitHub
parent 7ae5506e8c
commit 4e458239fb
2 changed files with 58 additions and 75 deletions
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75
crypto/blake2b/blake2b_f_fuzz_test.go
View file

@ -1,75 +0,0 @@
// Only enable fuzzer on platforms with AVX enabled
//go:build go1.7 && amd64 && !gccgo && !appengine
// +build go1.7,amd64,!gccgo,!appengine
package blake2b
import (
"encoding/binary"
"testing"
)
func Fuzz(f *testing.F) {
f.Fuzz(func(t *testing.T, data []byte) {
fuzz(data)
})
}
func fuzz(data []byte) {
// Make sure the data confirms to the input model
if len(data) != 211 {
return
}
// Parse everything and call all the implementations
var (
rounds = binary.BigEndian.Uint16(data[0:2])
h [8]uint64
m [16]uint64
t [2]uint64
f uint64
)
for i := 0; i < 8; i++ {
offset := 2 + i*8
h[i] = binary.LittleEndian.Uint64(data[offset : offset+8])
}
for i := 0; i < 16; i++ {
offset := 66 + i*8
m[i] = binary.LittleEndian.Uint64(data[offset : offset+8])
}
t[0] = binary.LittleEndian.Uint64(data[194:202])
t[1] = binary.LittleEndian.Uint64(data[202:210])
if data[210]%2 == 1 { // Avoid spinning the fuzzer to hit 0/1
f = 0xFFFFFFFFFFFFFFFF
}
// Run the blake2b compression on all instruction sets and cross reference
want := h
fGeneric(&want, &m, t[0], t[1], f, uint64(rounds))
have := h
if useSSE4 {
fSSE4(&have, &m, t[0], t[1], f, uint64(rounds))
if have != want {
panic("SSE4 mismatches generic algo")
}
}
if useAVX {
have = h
fAVX(&have, &m, t[0], t[1], f, uint64(rounds))
if have != want {
panic("AVX mismatches generic algo")
}
}
if useAVX2 {
have = h
fAVX2(&have, &m, t[0], t[1], f, uint64(rounds))
if have != want {
panic("AVX2 mismatches generic algo")
}
}
}

58
crypto/blake2b/blake2b_f_test.go
View file

@ -1,6 +1,7 @@
package blake2b package blake2b
import ( import (
"encoding/binary"
"fmt" "fmt"
"reflect" "reflect"
"testing" "testing"
@ -57,3 +58,60 @@ var testVectorsF = []testVector{
}, },
}, },
} }
func Fuzz(f *testing.F) {
f.Fuzz(func(t *testing.T, data []byte) {
fuzz(data)
})
}
func fuzz(data []byte) {
// Make sure the data confirms to the input model
if len(data) != 211 {
return
}
// Parse everything and call all the implementations
var (
rounds = binary.BigEndian.Uint16(data[0:2])
h [8]uint64
m [16]uint64
t [2]uint64
f uint64
)
for i := 0; i < 8; i++ {
offset := 2 + i*8
h[i] = binary.LittleEndian.Uint64(data[offset : offset+8])
}
for i := 0; i < 16; i++ {
offset := 66 + i*8
m[i] = binary.LittleEndian.Uint64(data[offset : offset+8])
}
t[0] = binary.LittleEndian.Uint64(data[194:202])
t[1] = binary.LittleEndian.Uint64(data[202:210])
if data[210]%2 == 1 { // Avoid spinning the fuzzer to hit 0/1
f = 0xFFFFFFFFFFFFFFFF
}
// Run the blake2b compression on all instruction sets and cross reference
want := h
fGeneric(&want, &m, t[0], t[1], f, uint64(rounds))
have := h
fSSE4(&have, &m, t[0], t[1], f, uint64(rounds))
if have != want {
panic("SSE4 mismatches generic algo")
}
have = h
fAVX(&have, &m, t[0], t[1], f, uint64(rounds))
if have != want {
panic("AVX mismatches generic algo")
}
have = h
fAVX2(&have, &m, t[0], t[1], f, uint64(rounds))
if have != want {
panic("AVX2 mismatches generic algo")
}
}