plugeth/crypto/bn256/cloudflare/lattice_test.go
Péter Szilágyi 1203c6a237
crypto/bn256: full switchover to cloudflare's code (#16301)
* crypto/bn256: full switchover to cloudflare's code

* crypto/bn256: only use cloudflare for optimized architectures

* crypto/bn256: upstream fallback for non-optimized code

* .travis, build: drop support for Go 1.8 (need type aliases)

* crypto/bn256/cloudflare: enable curve mul lattice optimization
2018-03-20 01:13:54 +09:00

30 lines
731 B
Go

package bn256
import (
"crypto/rand"
"testing"
)
func TestLatticeReduceCurve(t *testing.T) {
k, _ := rand.Int(rand.Reader, Order)
ks := curveLattice.decompose(k)
if ks[0].BitLen() > 130 || ks[1].BitLen() > 130 {
t.Fatal("reduction too large")
} else if ks[0].Sign() < 0 || ks[1].Sign() < 0 {
t.Fatal("reduction must be positive")
}
}
func TestLatticeReduceTarget(t *testing.T) {
k, _ := rand.Int(rand.Reader, Order)
ks := targetLattice.decompose(k)
if ks[0].BitLen() > 66 || ks[1].BitLen() > 66 || ks[2].BitLen() > 66 || ks[3].BitLen() > 66 {
t.Fatal("reduction too large")
} else if ks[0].Sign() < 0 || ks[1].Sign() < 0 || ks[2].Sign() < 0 || ks[3].Sign() < 0 {
t.Fatal("reduction must be positive")
}
}