mirror of
https://github.com/emmansun/gmsm.git
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422 lines
14 KiB
Go
422 lines
14 KiB
Go
//go:build (amd64 && !generic) || (arm64 && !generic)
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// +build amd64,!generic arm64,!generic
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package sm2
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import (
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"crypto/rand"
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"encoding/hex"
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"fmt"
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"io"
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"math/big"
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"testing"
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"time"
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)
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func toBigInt(in []uint64) *big.Int {
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var valBytes = make([]byte, 32)
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p256LittleToBig(valBytes, in)
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return new(big.Int).SetBytes(valBytes)
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}
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// ordk0 = -n^(-1) mod 2^64
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func Test_p256ordk0(t *testing.T) {
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n, _ := new(big.Int).SetString("FFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFF7203DF6B21C6052B53BBF40939D54123", 16)
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p, _ := new(big.Int).SetString("10000000000000000", 16) // 2^64
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n = n.ModInverse(n, p)
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n = n.Neg(n)
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n = n.Mod(n, p)
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if "327f9e8872350975" != hex.EncodeToString(n.Bytes()) {
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t.Failed()
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}
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}
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func Test_p256NegCond(t *testing.T) {
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p, _ := new(big.Int).SetString("FFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00000000FFFFFFFFFFFFFFFF", 16)
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var val = []uint64{0x61328990f418029e, 0x3e7981eddca6c050, 0xd6a1ed99ac24c3c3, 0x91167a5ee1c13b05}
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bigVal := toBigInt(val)
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p256NegCond(val, 0)
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bigVal1 := toBigInt(val)
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if bigVal.Cmp(bigVal1) != 0 {
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t.Fatal("should be same")
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}
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p256NegCond(val, 1)
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bigVal1 = toBigInt(val)
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if bigVal.Cmp(bigVal1) == 0 {
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t.Fatal("should be different")
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}
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bigVal2 := new(big.Int).Sub(p, bigVal)
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if bigVal2.Cmp(bigVal1) != 0 {
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t.Fatal("should be same")
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}
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}
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func Test_p256FromMont(t *testing.T) {
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res := make([]uint64, 4)
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p256FromMont(res, []uint64{0x0000000000000001, 0x00000000ffffffff, 0x0000000000000000, 0x0000000100000000})
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res1 := (res[0] ^ 0x0000000000000001) | res[1] | res[2] | res[3]
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if res1 != 0 {
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t.FailNow()
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}
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x, _ := new(big.Int).SetString("32C4AE2C1F1981195F9904466A39C9948FE30BBFF2660BE1715A4589334C74C7", 16)
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x1 := make([]uint64, 4)
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p256BigToLittle(x1, x.Bytes())
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p256FromMont(res, []uint64{0x61328990f418029e, 0x3e7981eddca6c050, 0xd6a1ed99ac24c3c3, 0x91167a5ee1c13b05})
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if (res[0]^x1[0])|(res[1]^x1[1])|(res[2]^x1[2])|(res[3]^x1[3]) != 0 {
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t.FailNow()
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}
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}
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func Test_p256Sqr(t *testing.T) {
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r, _ := new(big.Int).SetString("10000000000000000000000000000000000000000000000000000000000000000", 16)
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p, _ := new(big.Int).SetString("FFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00000000FFFFFFFFFFFFFFFF", 16)
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x, _ := new(big.Int).SetString("32C4AE2C1F1981195F9904466A39C9948FE30BBFF2660BE1715A4589334C74C7", 16)
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one := []uint64{0x0000000000000001, 0x00000000ffffffff, 0x0000000000000000, 0x0000000100000000}
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res := make([]uint64, 4)
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p256Sqr(res, one, 2)
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if (res[0]^one[0])|(res[1]^one[1])|(res[2]^one[2])|(res[3]^one[3]) != 0 {
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t.FailNow()
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}
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gx := []uint64{0x61328990f418029e, 0x3e7981eddca6c050, 0xd6a1ed99ac24c3c3, 0x91167a5ee1c13b05}
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p256Sqr(res, gx, 2)
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resInt := toBigInt(res)
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fmt.Printf("1=%s\n", hex.EncodeToString(resInt.Bytes()))
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gxsqr := new(big.Int).Mul(x, x)
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gxsqr = new(big.Int).Mod(gxsqr, p)
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gxsqr = new(big.Int).Mul(gxsqr, gxsqr)
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gxsqr = new(big.Int).Mod(gxsqr, p)
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gxsqr = new(big.Int).Mul(gxsqr, r)
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gxsqr = new(big.Int).Mod(gxsqr, p)
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fmt.Printf("2=%s\n", hex.EncodeToString(gxsqr.Bytes()))
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if resInt.Cmp(gxsqr) != 0 {
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t.FailNow()
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}
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}
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func Test_p256Mul(t *testing.T) {
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r, _ := new(big.Int).SetString("10000000000000000000000000000000000000000000000000000000000000000", 16)
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p, _ := new(big.Int).SetString("FFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00000000FFFFFFFFFFFFFFFF", 16)
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x, _ := new(big.Int).SetString("32C4AE2C1F1981195F9904466A39C9948FE30BBFF2660BE1715A4589334C74C7", 16)
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y, _ := new(big.Int).SetString("BC3736A2F4F6779C59BDCEE36B692153D0A9877CC62A474002DF32E52139F0A0", 16)
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res := make([]uint64, 4)
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gx := []uint64{0x61328990f418029e, 0x3e7981eddca6c050, 0xd6a1ed99ac24c3c3, 0x91167a5ee1c13b05}
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gy := []uint64{0xc1354e593c2d0ddd, 0xc1f5e5788d3295fa, 0x8d4cfb066e2a48f8, 0x63cd65d481d735bd}
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p256Mul(res, gx, gy)
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resInt := toBigInt(res)
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fmt.Printf("1=%s\n", hex.EncodeToString(resInt.Bytes()))
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xmy := new(big.Int).Mul(x, y)
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xmy = new(big.Int).Mod(xmy, p)
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xmy = new(big.Int).Mul(xmy, r)
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xmy = new(big.Int).Mod(xmy, p)
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fmt.Printf("2=%s\n", hex.EncodeToString(xmy.Bytes()))
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if resInt.Cmp(xmy) != 0 {
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t.FailNow()
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}
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}
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func p256SqrTest(t *testing.T, x, p, r *big.Int) {
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x1 := new(big.Int).Mul(x, r)
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x1 = x1.Mod(x1, p)
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ax := make([]uint64, 4)
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res := make([]uint64, 4)
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res2 := make([]uint64, 4)
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fromBig(ax, x1)
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p256Sqr(res2, ax, 1)
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p256FromMont(res, res2)
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resInt := toBigInt(res)
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expected := new(big.Int).Mul(x, x)
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expected = expected.Mod(expected, p)
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if resInt.Cmp(expected) != 0 {
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t.FailNow()
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}
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}
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func TestFuzzyP256Sqr(t *testing.T) {
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p, _ := new(big.Int).SetString("FFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00000000FFFFFFFFFFFFFFFF", 16)
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r, _ := new(big.Int).SetString("10000000000000000000000000000000000000000000000000000000000000000", 16)
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var scalar1 [32]byte
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var timeout *time.Timer
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if testing.Short() {
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timeout = time.NewTimer(10 * time.Millisecond)
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} else {
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timeout = time.NewTimer(2 * time.Second)
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}
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for {
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select {
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case <-timeout.C:
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return
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default:
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}
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io.ReadFull(rand.Reader, scalar1[:])
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x := new(big.Int).SetBytes(scalar1[:])
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p256SqrTest(t, x, p, r)
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}
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}
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func p256MulTest(t *testing.T, x, y, p, r *big.Int) {
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x1 := new(big.Int).Mul(x, r)
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x1 = x1.Mod(x1, p)
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y1 := new(big.Int).Mul(y, r)
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y1 = y1.Mod(y1, p)
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ax := make([]uint64, 4)
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ay := make([]uint64, 4)
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res := make([]uint64, 4)
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res2 := make([]uint64, 4)
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fromBig(ax, x1)
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fromBig(ay, y1)
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p256Mul(res2, ax, ay)
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p256FromMont(res, res2)
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resInt := toBigInt(res)
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expected := new(big.Int).Mul(x, y)
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expected = expected.Mod(expected, p)
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if resInt.Cmp(expected) != 0 {
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t.FailNow()
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}
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}
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func TestFuzzyP256Mul(t *testing.T) {
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p, _ := new(big.Int).SetString("FFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00000000FFFFFFFFFFFFFFFF", 16)
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r, _ := new(big.Int).SetString("10000000000000000000000000000000000000000000000000000000000000000", 16)
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var scalar1 [32]byte
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var scalar2 [32]byte
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var timeout *time.Timer
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if testing.Short() {
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timeout = time.NewTimer(10 * time.Millisecond)
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} else {
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timeout = time.NewTimer(2 * time.Second)
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}
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for {
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select {
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case <-timeout.C:
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return
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default:
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}
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io.ReadFull(rand.Reader, scalar1[:])
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io.ReadFull(rand.Reader, scalar2[:])
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x := new(big.Int).SetBytes(scalar1[:])
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y := new(big.Int).SetBytes(scalar2[:])
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p256MulTest(t, x, y, p, r)
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}
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}
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func Test_p256MulSqr(t *testing.T) {
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r, _ := new(big.Int).SetString("10000000000000000000000000000000000000000000000000000000000000000", 16)
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p, _ := new(big.Int).SetString("FFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00000000FFFFFFFFFFFFFFFF", 16)
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x, _ := new(big.Int).SetString("32C4AE2C1F1981195F9904466A39C9948FE30BBFF2660BE1715A4589334C74C7", 16)
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res := make([]uint64, 4)
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gx := []uint64{0x61328990f418029e, 0x3e7981eddca6c050, 0xd6a1ed99ac24c3c3, 0x91167a5ee1c13b05}
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p256Sqr(res, gx, 32)
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resInt := toBigInt(res)
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fmt.Printf("0=%s\n", hex.EncodeToString(resInt.Bytes()))
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p256Mul(res, gx, gx)
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for i := 0; i < 31; i++ {
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p256Mul(res, res, res)
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}
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resInt1 := toBigInt(res)
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fmt.Printf("1=%s\n", hex.EncodeToString(resInt1.Bytes()))
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resInt2 := new(big.Int).Mod(x, p)
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for i := 0; i < 32; i++ {
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resInt2 = new(big.Int).Mul(resInt2, resInt2)
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resInt2 = new(big.Int).Mod(resInt2, p)
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}
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resInt2 = new(big.Int).Mul(resInt2, r)
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resInt2 = new(big.Int).Mod(resInt2, p)
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fmt.Printf("2=%s\n", hex.EncodeToString(resInt2.Bytes()))
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if resInt.Cmp(resInt2) != 0 || resInt1.Cmp(resInt2) != 0 {
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t.FailNow()
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}
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}
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func Test_p256OrdSqr(t *testing.T) {
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r, _ := new(big.Int).SetString("10000000000000000000000000000000000000000000000000000000000000000", 16)
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n, _ := new(big.Int).SetString("FFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFF7203DF6B21C6052B53BBF40939D54123", 16)
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x, _ := new(big.Int).SetString("32C4AE2C1F1981195F9904466A39C9948FE30BBFF2660BE1715A4589334C74C7", 16)
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gx := make([]uint64, 4)
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res := make([]uint64, 4)
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xm := new(big.Int).Mul(x, r)
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xm = new(big.Int).Mod(xm, n)
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p256BigToLittle(gx, xm.Bytes())
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p256OrdMul(res, gx, gx)
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resInt := toBigInt(res)
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fmt.Printf("p256OrdMul=%s\n", hex.EncodeToString(resInt.Bytes()))
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gxsqr := new(big.Int).Mul(x, x)
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gxsqr = new(big.Int).Mod(gxsqr, n)
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gxsqr = new(big.Int).Mul(gxsqr, r)
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gxsqr = new(big.Int).Mod(gxsqr, n)
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fmt.Printf("2=%s\n", hex.EncodeToString(gxsqr.Bytes()))
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if resInt.Cmp(gxsqr) != 0 {
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t.FailNow()
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}
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p256OrdSqr(res, gx, 1)
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resInt = toBigInt(res)
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fmt.Printf("p256OrdSqr=%s\n", hex.EncodeToString(resInt.Bytes()))
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if resInt.Cmp(gxsqr) != 0 {
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t.FailNow()
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}
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}
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func Test_p256Inverse(t *testing.T) {
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r, _ := new(big.Int).SetString("10000000000000000000000000000000000000000000000000000000000000000", 16)
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p, _ := new(big.Int).SetString("FFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00000000FFFFFFFFFFFFFFFF", 16)
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x, _ := new(big.Int).SetString("32C4AE2C1F1981195F9904466A39C9948FE30BBFF2660BE1715A4589334C74C7", 16)
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gx := []uint64{0x61328990f418029e, 0x3e7981eddca6c050, 0xd6a1ed99ac24c3c3, 0x91167a5ee1c13b05}
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res := make([]uint64, 4)
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p256Inverse(res, gx)
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resInt := toBigInt(res)
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fmt.Printf("p256Inverse=%s\n", hex.EncodeToString(resInt.Bytes()))
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xInv := new(big.Int).ModInverse(x, p)
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xInv = new(big.Int).Mul(xInv, r)
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xInv = new(big.Int).Mod(xInv, p)
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fmt.Printf("expected=%s\n", hex.EncodeToString(xInv.Bytes()))
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if resInt.Cmp(xInv) != 0 {
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t.FailNow()
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}
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}
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func Test_p256PointAddAsm_basepoint(t *testing.T) {
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curve1 := P256()
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params := curve1.Params()
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basePoint := []uint64{
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0x61328990f418029e, 0x3e7981eddca6c050, 0xd6a1ed99ac24c3c3, 0x91167a5ee1c13b05,
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0xc1354e593c2d0ddd, 0xc1f5e5788d3295fa, 0x8d4cfb066e2a48f8, 0x63cd65d481d735bd,
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0x0000000000000001, 0x00000000ffffffff, 0x0000000000000000, 0x0000000100000000,
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}
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in := make([]uint64, 12)
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res := make([]uint64, 12)
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copy(in, basePoint)
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p256PointDoubleAsm(res, in)
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n := p256PointAddAsm(res, res, in)
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fmt.Printf("n=%d\n", n)
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var r p256Point
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copy(r.xyz[:], res)
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x1, y1 := r.p256PointToAffine()
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fmt.Printf("x1=%s, y1=%s\n", hex.EncodeToString(x1.Bytes()), hex.EncodeToString(y1.Bytes()))
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x2, y2 := params.Double(params.Gx, params.Gy)
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x2, y2 = params.Add(params.Gx, params.Gy, x2, y2)
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fmt.Printf("x2=%s, y2=%s\n", hex.EncodeToString(x2.Bytes()), hex.EncodeToString(y2.Bytes()))
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if x1.Cmp(x2) != 0 || y1.Cmp(y2) != 0 {
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t.FailNow()
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}
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}
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func Test_p256PointDoubleAsm(t *testing.T) {
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basePoint := []uint64{
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0x61328990f418029e, 0x3e7981eddca6c050, 0xd6a1ed99ac24c3c3, 0x91167a5ee1c13b05,
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0xc1354e593c2d0ddd, 0xc1f5e5788d3295fa, 0x8d4cfb066e2a48f8, 0x63cd65d481d735bd,
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0x0000000000000001, 0x00000000ffffffff, 0x0000000000000000, 0x0000000100000000,
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}
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t1 := make([]uint64, 12)
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copy(t1, basePoint)
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for i := 0; i < 16; i++ {
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p256PointDoubleAsm(t1, t1)
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}
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var r p256Point
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copy(r.xyz[:], t1)
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x1, y1 := r.p256PointToAffine()
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fmt.Printf("x1=%s, y1=%s\n", hex.EncodeToString(x1.Bytes()), hex.EncodeToString(y1.Bytes()))
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curve1 := P256()
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params := curve1.Params()
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x2, y2 := params.Double(params.Gx, params.Gy)
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for i := 0; i < 15; i++ {
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x2, y2 = params.Double(x2, y2)
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}
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fmt.Printf("x2=%s, y2=%s\n", hex.EncodeToString(x2.Bytes()), hex.EncodeToString(y2.Bytes()))
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if x1.Cmp(x2) != 0 || y1.Cmp(y2) != 0 {
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t.FailNow()
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}
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}
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func Test_ScalarBaseMult(t *testing.T) {
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scalar := big.NewInt(0xffffffff)
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curve1 := P256()
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x1, y1 := curve1.ScalarBaseMult(scalar.Bytes())
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fmt.Printf("x1=%s, y1=%s\n", hex.EncodeToString(x1.Bytes()), hex.EncodeToString(y1.Bytes()))
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params := curve1.Params()
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x2, y2 := params.ScalarBaseMult(scalar.Bytes())
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fmt.Printf("x2=%s, y2=%s\n", hex.EncodeToString(x2.Bytes()), hex.EncodeToString(y2.Bytes()))
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if x1.Cmp(x2) != 0 || y1.Cmp(y2) != 0 {
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t.FailNow()
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}
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}
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func Test_p256PointAddAsm(t *testing.T) {
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curve1 := P256()
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params := curve1.Params()
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k1, _ := randFieldElement(params, rand.Reader)
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x1, y1 := params.ScalarBaseMult(k1.Bytes())
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k2, _ := randFieldElement(params, rand.Reader)
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x2, y2 := params.ScalarBaseMult(k2.Bytes())
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x3, y3 := params.Add(x1, y1, x2, y2)
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fmt.Printf("x1=%s, y1=%s\n", hex.EncodeToString(x3.Bytes()), hex.EncodeToString(y3.Bytes()))
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var in1, in2, rp p256Point
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fromBig(in1.xyz[0:4], maybeReduceModP(x1))
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fromBig(in1.xyz[4:8], maybeReduceModP(y1))
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fromBig(in2.xyz[0:4], maybeReduceModP(x2))
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fromBig(in2.xyz[4:8], maybeReduceModP(y2))
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in1.xyz[8] = 0x0000000000000001
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in1.xyz[9] = 0x00000000ffffffff
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in1.xyz[10] = 0x0000000000000000
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in1.xyz[11] = 0x0000000100000000
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in2.xyz[8] = 0x0000000000000001
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in2.xyz[9] = 0x00000000ffffffff
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in2.xyz[10] = 0x0000000000000000
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in2.xyz[11] = 0x0000000100000000
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p256Mul(in1.xyz[0:4], in1.xyz[0:4], rr[:])
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p256Mul(in1.xyz[4:8], in1.xyz[4:8], rr[:])
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p256Mul(in2.xyz[0:4], in2.xyz[0:4], rr[:])
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p256Mul(in2.xyz[4:8], in2.xyz[4:8], rr[:])
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res := make([]uint64, 12)
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n := p256PointAddAsm(res, in1.xyz[:], in2.xyz[:])
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fmt.Printf("n=%d\n", n)
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copy(rp.xyz[:], res)
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x4, y4 := rp.p256PointToAffine()
|
|
fmt.Printf("x1=%s, y1=%s\n", hex.EncodeToString(x4.Bytes()), hex.EncodeToString(y4.Bytes()))
|
|
if n == 0 && (x3.Cmp(x4) != 0 || y3.Cmp(y4) != 0) {
|
|
t.FailNow()
|
|
}
|
|
}
|
|
|
|
func Test_ScalarMult_basepoint(t *testing.T) {
|
|
scalar := big.NewInt(0xffffffff)
|
|
curve1 := P256()
|
|
x1, y1 := curve1.ScalarMult(curve1.Params().Gx, curve1.Params().Gy, scalar.Bytes())
|
|
fmt.Printf("x1=%s, y1=%s\n", hex.EncodeToString(x1.Bytes()), hex.EncodeToString(y1.Bytes()))
|
|
params := curve1.Params()
|
|
x2, y2 := params.ScalarMult(curve1.Params().Gx, curve1.Params().Gy, scalar.Bytes())
|
|
fmt.Printf("x2=%s, y2=%s\n", hex.EncodeToString(x2.Bytes()), hex.EncodeToString(y2.Bytes()))
|
|
if x1.Cmp(x2) != 0 || y1.Cmp(y2) != 0 {
|
|
t.FailNow()
|
|
}
|
|
}
|
|
|
|
func Test_Inverse(t *testing.T) {
|
|
n, _ := new(big.Int).SetString("FFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFF7203DF6B21C6052B53BBF40939D54123", 16)
|
|
x, _ := new(big.Int).SetString("32C4AE2C1F1981195F9904466A39C9948FE30BBFF2660BE1715A4589334C74C7", 16)
|
|
nm2 := new(big.Int).Sub(n, big.NewInt(2))
|
|
nm2a := make([]uint64, 4)
|
|
fromBig(nm2a, nm2)
|
|
fmt.Printf("%0b, %0b, %b, %b\n", nm2a[0], nm2a[1], nm2a[2], nm2a[3])
|
|
xInv1 := fermatInverse(x, n)
|
|
fmt.Printf("expect=%s\n", hex.EncodeToString(xInv1.Bytes()))
|
|
_ = P256()
|
|
xInv2 := p256.Inverse(x)
|
|
fmt.Printf("result=%s\n", hex.EncodeToString(xInv2.Bytes()))
|
|
|
|
if xInv1.Cmp(xInv2) != 0 {
|
|
t.FailNow()
|
|
}
|
|
}
|