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internal/sm2ec: add boundary test

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Sun Yimin 2023-07-28 15:26:42 +08:00 committed by GitHub
parent ca474a67ba
commit c813a1fb65
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2 changed files with 15 additions and 1 deletions
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14
internal/sm2ec/sm2p256_asm_test.go
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@ -51,6 +51,13 @@ func p256MulTest(t *testing.T, x, y, p, r *big.Int) {
} }
} }
func TestP256MulPMinus1(t *testing.T) {
p, _ := new(big.Int).SetString("FFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00000000FFFFFFFFFFFFFFFF", 16)
r, _ := new(big.Int).SetString("10000000000000000000000000000000000000000000000000000000000000000", 16)
pMinus1 := new(big.Int).Sub(p, big.NewInt(1))
p256MulTest(t, pMinus1, pMinus1, p, r)
}
func TestFuzzyP256Mul(t *testing.T) { func TestFuzzyP256Mul(t *testing.T) {
p, _ := new(big.Int).SetString("FFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00000000FFFFFFFFFFFFFFFF", 16) p, _ := new(big.Int).SetString("FFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00000000FFFFFFFFFFFFFFFF", 16)
r, _ := new(big.Int).SetString("10000000000000000000000000000000000000000000000000000000000000000", 16) r, _ := new(big.Int).SetString("10000000000000000000000000000000000000000000000000000000000000000", 16)
@ -95,6 +102,13 @@ func p256SqrTest(t *testing.T, x, p, r *big.Int) {
} }
} }
func TestP256SqrPMinus1(t *testing.T) {
p, _ := new(big.Int).SetString("FFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00000000FFFFFFFFFFFFFFFF", 16)
r, _ := new(big.Int).SetString("10000000000000000000000000000000000000000000000000000000000000000", 16)
pMinus1 := new(big.Int).Sub(p, big.NewInt(1))
p256SqrTest(t, pMinus1, p, r)
}
func TestFuzzyP256Sqr(t *testing.T) { func TestFuzzyP256Sqr(t *testing.T) {
p, _ := new(big.Int).SetString("FFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00000000FFFFFFFFFFFFFFFF", 16) p, _ := new(big.Int).SetString("FFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00000000FFFFFFFFFFFFFFFF", 16)
r, _ := new(big.Int).SetString("10000000000000000000000000000000000000000000000000000000000000000", 16) r, _ := new(big.Int).SetString("10000000000000000000000000000000000000000000000000000000000000000", 16)

2
sm9/bn256/gfp2_g1_amd64.s
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@ -90,7 +90,7 @@ TEXT gfpMulInternal(SB),NOSPLIT,$8
ADDQ mul0, acc4 ADDQ mul0, acc4
ADCQ $0, acc5 ADCQ $0, acc5
// [t3, t2, t1, t0] * acc5 // [t3, t2, t1, t0] * acc6
MOVQ acc6, mul1 MOVQ acc6, mul1
MULXQ t0, mul0, hlp MULXQ t0, mul0, hlp
ADDQ mul0, acc2 ADDQ mul0, acc2