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add negative tests for signatures (#4788)

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This commit is contained in:
Nikolay Volf
2020-01-31 04:26:36 -08:00
committed by GitHub
parent 709a899f9d
commit 42dd01cbbd
1 changed files with 20 additions and 0 deletions
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substrate/primitives/core/src/sr25519.rs
+20
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@@ -729,6 +729,26 @@ mod test {
assert!(Pair::verify(&signature, &message[..], &public));
}
#[test]
fn messed_signature_should_not_work() {
let (pair, _) = Pair::generate();
let public = pair.public();
let message = b"Signed payload";
let Signature(mut bytes) = pair.sign(&message[..]);
bytes[0] = bytes[2];
let signature = Signature(bytes);
assert!(!Pair::verify(&signature, &message[..], &public));
}
#[test]
fn messed_message_should_not_work() {
let (pair, _) = Pair::generate();
let public = pair.public();
let message = b"Something important";
let signature = pair.sign(&message[..]);
assert!(!Pair::verify(&signature, &b"Something unimportant", &public));
}
#[test]
fn seeded_pair_should_work() {
let pair = Pair::from_seed(b"12345678901234567890123456789012");