mirror of https://github.com/nucypher/nucypher.git
45 lines
1.6 KiB
Python
45 lines
1.6 KiB
Python
"""
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This file is part of nucypher.
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nucypher is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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nucypher is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with nucypher. If not, see <https://www.gnu.org/licenses/>.
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"""
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from umbral.keys import UmbralPrivateKey
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from nucypher.crypto.api import ecdsa_sign
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from nucypher.crypto.signing import Signature
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def test_signature_can_verify():
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privkey = UmbralPrivateKey.gen_key()
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message = b"attack at dawn"
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der_sig_bytes = ecdsa_sign(message, privkey)
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signature = Signature.from_bytes(der_sig_bytes, der_encoded=True)
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assert signature.verify(message, privkey.get_pubkey())
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def test_signature_rs_serialization():
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privkey = UmbralPrivateKey.gen_key()
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message = b"attack at dawn"
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der_sig_bytes = ecdsa_sign(message, privkey)
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signature_from_der = Signature.from_bytes(der_sig_bytes, der_encoded=True)
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rs_sig_bytes = bytes(signature_from_der)
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assert len(rs_sig_bytes) == 64
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signature_from_rs = Signature.from_bytes(rs_sig_bytes, der_encoded=False)
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assert signature_from_rs == signature_from_der
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assert signature_from_rs == der_sig_bytes
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assert signature_from_rs.verify(message, privkey.get_pubkey())
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