def test_sign_to_contract_ssa() -> None:
m = sha256(b"to be signed").digest()
c = sha256(b"to be committed").digest()
prvkey, pub = ssa.gen_keys()
ssa_sig, ssa_receipt = ecssa_commit_sign(c, m, prvkey)
ssa._assert_as_valid(m, pub, ssa_sig, ec, sha256)
assert verify_commit(c, ssa_receipt)
k = 1 + secrets.randbelow(ec.n - 1)
ssa_sig, ssa_receipt = ecssa_commit_sign(c, m, prvkey, k)
ssa._assert_as_valid(m, pub, ssa_sig, ec, sha256)
assert verify_commit(c, ssa_receipt)
def test_signtocontract(self):
prv = 0x1
pub = mult(prv)
m = b"to be signed"
c = b"to be committed"
dsa_sig, dsa_receipt = ecdsa_commit_sign(c, m, prv, None)
self.assertIsNone(dsa._verify(m, pub, dsa_sig, ec, sha256))
self.assertTrue(verify_commit(c, dsa_receipt))
# 32 bytes message for ECSSA
m = sha256(m).digest()
ssa_sig, ssa_receipt = ecssa_commit_sign(c, m, prv, None)
self.assertIsNone(ssa._verify(m, pub, ssa_sig, ec, sha256))
self.assertTrue(verify_commit(c, ssa_receipt))
def test_signtocontract():
m = b"to be signed"
c = b"to be committed"
prv, pub = dsa.gen_keys()
dsa_sig, dsa_receipt = ecdsa_commit_sign(c, m, prv, None)
dsa.assert_as_valid(m, pub, dsa_sig, ec, sha256)
assert verify_commit(c, dsa_receipt)
# 32 bytes message for ECSSA
m = sha256(m).digest()
prv, pub = ssa.gen_keys()
ssa_sig, ssa_receipt = ecssa_commit_sign(c, m, prv, None)
ssa.assert_as_valid(m, pub, ssa_sig, ec, sha256)
assert verify_commit(c, ssa_receipt)
def test_signtocontract(self):
prv = 0x1
pub = mult(ec, prv, ec.G)
m = "to be signed".encode()
c = "to be committed".encode()
dsa_sig, dsa_receipt = ecdsa_commit_sign(c, ec, hf, m, prv, None)
self.assertTrue(dsa.verify(ec, hf, m, pub, dsa_sig))
self.assertTrue(verify_commit(c, ec, hf, dsa_receipt))
# 32 bytes message for ECSSA
m = hf(m).digest()
ssa_sig, ssa_receipt = ecssa_commit_sign(c, ec, hf, m, prv, None)
self.assertTrue(ssa.verify(ec, hf, m, pub, ssa_sig))
self.assertTrue(verify_commit(c, ec, hf, ssa_receipt))