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package ed448
import (
"crypto/rand"
"io"
"testing"
)
func TestGenerate(t *testing.T) {
priv, err := GenerateKey(rand.Reader)
if err != nil {
t.Fatal(err)
}
if len(priv.Key) != SeedSize+PublicKeySize && len(priv.Point) != PublicKeySize {
t.Error("gnerated wrong key sizes")
}
}
func TestSignVerify(t *testing.T) {
digest := make([]byte, 32)
_, err := io.ReadFull(rand.Reader, digest[:])
if err != nil {
t.Fatal(err)
}
priv, err := GenerateKey(rand.Reader)
if err != nil {
t.Fatal(err)
}
signature, err := Sign(priv, digest)
if err != nil {
t.Errorf("error signing: %s", err)
}
result := Verify(&priv.PublicKey, digest, signature)
if !result {
t.Error("unable to verify message")
}
digest[0] += 1
result = Verify(&priv.PublicKey, digest, signature)
if result {
t.Error("signature should be invalid")
}
}
func TestValidation(t *testing.T) {
priv, err := GenerateKey(rand.Reader)
if err != nil {
t.Fatal(err)
}
if err := Validate(priv); err != nil {
t.Fatalf("valid key marked as invalid: %s", err)
}
priv.Key[0] += 1
if err := Validate(priv); err == nil {
t.Fatal("failed to detect invalid key")
}
}
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