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62 lines
3.7 KiB
Python
62 lines
3.7 KiB
Python
from common import *
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from trezor.crypto import chacha20poly1305
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class TestCryptoChaCha20Poly1305(unittest.TestCase):
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vectors = [
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# from https://github.com/wg/c20p1305/blob/master/rfc7539_test.c
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(
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'4c616469657320616e642047656e746c656d656e206f662074686520636c617373206f66202739393a204966204920636f756c64206f6666657220796f75206f6e6c79206f6e652074697020666f7220746865206675747572652c2073756e73637265656e20776f756c642062652069742e',
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'50515253c0c1c2c3c4c5c6c7',
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'808182838485868788898a8b8c8d8e8f909192939495969798999a9b9c9d9e9f',
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'070000004041424344454647',
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'd31a8d34648e60db7b86afbc53ef7ec2a4aded51296e08fea9e2b5a736ee62d63dbea45e8ca9671282fafb69da92728b1a71de0a9e060b2905d6a5b67ecd3b3692ddbd7f2d778b8c9803aee328091b58fab324e4fad675945585808b4831d7bc3ff4def08e4b7a9de576d26586cec64b6116',
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'1ae10b594f09e26a7e902ecbd0600691',
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),
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# from https://tools.ietf.org/html/rfc7539#appendix-A.5
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(
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'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',
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'f33388860000000000004e91',
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'1c9240a5eb55d38af333888604f6b5f0473917c1402b80099dca5cbc207075c0',
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'000000000102030405060708',
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'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',
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'eead9d67890cbb22392336fea1851f38',
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),
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]
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def test_chacha20_encrypt(self):
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for plaintext, _, key, nonce, ciphertext, _ in self.vectors:
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ctx = chacha20poly1305(unhexlify(key), unhexlify(nonce))
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out = ctx.encrypt(unhexlify(plaintext))
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self.assertEqual(out, unhexlify(ciphertext))
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def test_chacha20_decrypt(self):
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for plaintext, _, key, nonce, ciphertext, _ in self.vectors:
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ctx = chacha20poly1305(unhexlify(key), unhexlify(nonce))
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out = ctx.encrypt(unhexlify(ciphertext))
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self.assertEqual(out, unhexlify(plaintext))
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def test_chacha20poly1305_encrypt_mac(self):
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for plaintext, aad, key, nonce, ciphertext, tag in self.vectors:
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ctx = chacha20poly1305(unhexlify(key), unhexlify(nonce))
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ctx.auth(unhexlify(aad))
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out = ctx.encrypt(unhexlify(plaintext))
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self.assertEqual(out, unhexlify(ciphertext))
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out = ctx.finish()
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self.assertEqual(out, unhexlify(tag))
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def test_chacha20poly1305_decrypt_mac(self):
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for plaintext, aad, key, nonce, ciphertext, tag in self.vectors:
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ctx = chacha20poly1305(unhexlify(key), unhexlify(nonce))
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ctx.auth(unhexlify(aad))
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out = ctx.decrypt(unhexlify(ciphertext))
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self.assertEqual(out, unhexlify(plaintext))
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out = ctx.finish()
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self.assertEqual(out, unhexlify(tag))
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if __name__ == '__main__':
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unittest.main()
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