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// Copyright (C) 2019-2024 Algorand, Inc.
// This file is part of go-algorand
//
// go-algorand is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// go-algorand is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with go-algorand. If not, see <https://www.gnu.org/licenses/>.
package crypto
import (
"math/rand"
"testing"
"github.com/algorand/go-algorand/protocol"
)
type TestingHashable struct {
data []byte
}
func (s TestingHashable) ToBeHashed() (protocol.HashID, []byte) {
return protocol.TestHashable, s.data
}
func randString() (b TestingHashable) {
d := make([]byte, 20)
_, err := rand.Read(d)
if err != nil {
panic(err)
}
return TestingHashable{d}
}
func signVerify(t *testing.T, c *SignatureSecrets, c2 *SignatureSecrets) {
s := randString()
sig := c.Sign(s)
if !c.Verify(s, sig) {
t.Errorf("correct signature failed to verify (plain)")
}
s2 := randString()
sig2 := c.Sign(s2)
if c.Verify(s, sig2) {
t.Errorf("wrong message incorrectly verified (plain)")
}
sig3 := c2.Sign(s)
if c.Verify(s, sig3) {
t.Errorf("wrong key incorrectly verified (plain)")
}
if c.Verify(s2, sig3) {
t.Errorf("wrong message+key incorrectly verified (plain)")
}
}
func proveVerifyVrf(t *testing.T, c *VRFSecrets, c2 *VRFSecrets) {
d := randString()
pf, ok := c.SK.Prove(d)
if !ok {
t.Errorf("failed to construct proof (corrupt vrf secrets?)")
}
if ok, _ := c.PK.Verify(pf, d); !ok {
t.Errorf("correct proof failed to verify (proof)")
}
pf3, ok := c2.SK.Prove(d)
if !ok {
t.Errorf("failed to construct proof (corrupt vrf secrets?)")
}
if ok, _ := c.PK.Verify(pf3, d); ok {
t.Errorf("wrong key incorrectly verified (proof)")
}
d2 := randString()
if ok, _ := c.PK.Verify(pf, d2); ok {
t.Errorf("wrong message incorrectly verified (proof)")
}
}
func BenchmarkHash(b *testing.B) {
s := randString()
d := Hash(s.data)
b.ResetTimer()
for i := 0; i < b.N; i++ {
d = Hash(d[:])
}
_ = d
}
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