check arm64 gfp

This commit is contained in:
Sun Yimin 2022-06-14 11:03:54 +08:00 committed by GitHub
parent 554621915d
commit 4f2585ddbc
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 55 additions and 137 deletions

View File

@ -81,29 +81,26 @@ func Test_gfpBasicOperations(t *testing.T) {
}
}
func TestGfpSqrt(t *testing.T) {
tests := []string{
"9093a2b979e6186f43a9b28d41ba644d533377f2ede8c66b19774bf4a9c7a596",
"92fe90b700fbd4d8cc177d300ed16e4e15471a681b2c9e3728c1b82c885e49c2",
func TestGfpExp(t *testing.T) {
xI := bigFromHex("85AEF3D078640C98597B6027B441A01FF1DD2C190F5E93C454806C11D8806141")
x := fromBigInt(xI)
ret := &gfP{}
ret.exp(x, pMinus2)
ret1 := &gfP{}
ret1.exp2(x, bigFromHex("b640000002a3a6f1d603ab4ff58ec74521f2934b1a7aeedbe56f9b27e351457b"))
if ret1.String() == ret.String() {
t.Errorf("exp not same")
}
for i, test := range tests {
y2 := bigFromHex(test)
y21 := new(big.Int).ModSqrt(y2, p)
y3 := new(big.Int).Mul(y21, y21)
y3.Mod(y3, p)
if y2.Cmp(y3) != 0 {
t.Error("Invalid sqrt")
}
ret2 := new(big.Int).Exp(xI, bigFromHex("b640000002a3a6f1d603ab4ff58ec74521f2934b1a7aeedbe56f9b27e351457b"), p)
if hex.EncodeToString(ret2.Bytes()) == ret.String() {
t.Errorf("exp not same")
}
tmp := fromBigInt(y2)
tmp.Sqrt(tmp)
montDecode(tmp, tmp)
var res [32]byte
tmp.Marshal(res[:])
if hex.EncodeToString(res[:]) != hex.EncodeToString(y21.Bytes()) {
t.Errorf("case %v, got %v, expected %v\n", i, hex.EncodeToString(res[:]), hex.EncodeToString(y21.Bytes()))
}
xInv := new(big.Int).ModInverse(xI, p)
if hex.EncodeToString(ret2.Bytes()) != hex.EncodeToString(xInv.Bytes()) {
t.Errorf("exp not same, got %v, expected %v\n", hex.EncodeToString(ret2.Bytes()), hex.EncodeToString(xInv.Bytes()))
}
}
@ -128,124 +125,29 @@ func TestGfpDiv(t *testing.T) {
}
}
func Test_gfp12Gen(t *testing.T) {
ret := pairing(twistGen, curveGen)
if ret.x != gfP12Gen.x || ret.y != gfP12Gen.y || ret.z != gfP12Gen.z {
t.Errorf("not expected")
func TestGfpSqrt(t *testing.T) {
tests := []string{
"9093a2b979e6186f43a9b28d41ba644d533377f2ede8c66b19774bf4a9c7a596",
"92fe90b700fbd4d8cc177d300ed16e4e15471a681b2c9e3728c1b82c885e49c2",
}
}
for i, test := range tests {
y2 := bigFromHex(test)
y21 := new(big.Int).ModSqrt(y2, p)
func Test_gfP2Square(t *testing.T) {
x := &gfP2{
*fromBigInt(bigFromHex("85AEF3D078640C98597B6027B441A01FF1DD2C190F5E93C454806C11D8806141")),
*fromBigInt(bigFromHex("3722755292130B08D2AAB97FD34EC120EE265948D19C17ABF9B7213BAF82D65B")),
}
y3 := new(big.Int).Mul(y21, y21)
y3.Mod(y3, p)
if y2.Cmp(y3) != 0 {
t.Error("Invalid sqrt")
}
xmulx := &gfP2{}
xmulx.Mul(x, x)
xmulx = gfP2Decode(xmulx)
x2 := &gfP2{}
x2.Square(x)
x2 = gfP2Decode(x2)
if xmulx.x != x2.x || xmulx.y != x2.y {
t.Errorf("xmulx=%v, x2=%v", xmulx, x2)
}
}
func Test_gfP2Invert(t *testing.T) {
x := &gfP2{
*fromBigInt(bigFromHex("85AEF3D078640C98597B6027B441A01FF1DD2C190F5E93C454806C11D8806141")),
*fromBigInt(bigFromHex("3722755292130B08D2AAB97FD34EC120EE265948D19C17ABF9B7213BAF82D65B")),
}
xInv := &gfP2{}
xInv.Invert(x)
y := &gfP2{}
y.Mul(x, xInv)
expected := (&gfP2{}).SetOne()
if y.x != expected.x || y.y != expected.y {
t.Errorf("got %v, expected %v", y, expected)
}
x = &gfP2{
*fromBigInt(bigFromHex("85AEF3D078640C98597B6027B441A01FF1DD2C190F5E93C454806C11D8806141")),
*zero,
}
xInv.Invert(x)
y.Mul(x, xInv)
if y.x != expected.x || y.y != expected.y {
t.Errorf("got %v, expected %v", y, expected)
}
x = &gfP2{
*zero,
*fromBigInt(bigFromHex("3722755292130B08D2AAB97FD34EC120EE265948D19C17ABF9B7213BAF82D65B")),
}
xInv.Invert(x)
y.Mul(x, xInv)
if y.x != expected.x || y.y != expected.y {
t.Errorf("got %v, expected %v", y, expected)
}
}
func Test_gfP2Exp(t *testing.T) {
x := &gfP2{
*fromBigInt(bigFromHex("17509B092E845C1266BA0D262CBEE6ED0736A96FA347C8BD856DC76B84EBEB96")),
*fromBigInt(bigFromHex("A7CF28D519BE3DA65F3170153D278FF247EFBA98A71A08116215BBA5C999A7C7")),
}
got := &gfP2{}
got.Exp(x, big.NewInt(1))
if x.x != got.x || x.y != got.y {
t.Errorf("got %v, expected %v", got, x)
}
}
func Test_gfP2Frobenius(t *testing.T) {
x := &gfP2{
*fromBigInt(bigFromHex("85AEF3D078640C98597B6027B441A01FF1DD2C190F5E93C454806C11D8806141")),
*fromBigInt(bigFromHex("3722755292130B08D2AAB97FD34EC120EE265948D19C17ABF9B7213BAF82D65B")),
}
expected := &gfP2{}
expected.Exp(x, p)
got := &gfP2{}
got.Frobenius(x)
if expected.x != got.x || expected.y != got.y {
t.Errorf("got %v, expected %v", got, x)
}
// make sure i^(p-1) = -1
i := &gfP2{}
i.SetU()
i.Exp(i, bigFromHex("b640000002a3a6f1d603ab4ff58ec74521f2934b1a7aeedbe56f9b27e351457c"))
i = gfP2Decode(i)
expected.y.Set(newGFp(-1))
expected.x.Set(zero)
expected = gfP2Decode(expected)
if expected.x != i.x || expected.y != i.y {
t.Errorf("got %v, expected %v", i, expected)
}
}
func Test_gfP2Div2(t *testing.T) {
x := &gfP2{
*fromBigInt(bigFromHex("85AEF3D078640C98597B6027B441A01FF1DD2C190F5E93C454806C11D8806141")),
*fromBigInt(bigFromHex("3722755292130B08D2AAB97FD34EC120EE265948D19C17ABF9B7213BAF82D65B")),
}
ret := &gfP2{}
ret.Div2(x)
ret.Add(ret, ret)
if *ret != *x {
t.Errorf("got %v, expected %v", ret, x)
tmp := fromBigInt(y2)
tmp.Sqrt(tmp)
montDecode(tmp, tmp)
var res [32]byte
tmp.Marshal(res[:])
if hex.EncodeToString(res[:]) != hex.EncodeToString(y21.Bytes()) {
t.Errorf("case %v, got %v, expected %v\n", i, hex.EncodeToString(res[:]), hex.EncodeToString(y21.Bytes()))
}
}
}

View File

@ -103,6 +103,24 @@ func (e *gfP) exp(f *gfP, bits [4]uint64) {
e.Set(sum)
}
func (e *gfP) exp2(f *gfP, power *big.Int) *gfP {
sum := &gfP{}
sum.Set(one)
t := &gfP{}
for i := power.BitLen() - 1; i >= 0; i-- {
gfpMul(t, sum, sum)
if power.Bit(i) != 0 {
gfpMul(sum, f, f)
} else {
sum.Set(t)
}
}
e.Set(sum)
return e
}
func (e *gfP) Invert(f *gfP) {
e.exp(f, pMinus2)
}

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@ -1,6 +1,5 @@
package sm9
/*
import (
"math/big"
"testing"
@ -119,4 +118,3 @@ func Test_gfP2Div2(t *testing.T) {
t.Errorf("got %v, expected %v", ret, x)
}
}
*/