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# This file is dual licensed under the terms of the Apache License, Version
# 2.0, and the BSD License. See the LICENSE file in the root of this repository
# for complete details.
import pytest
from cryptography.exceptions import UnsupportedAlgorithm
from cryptography.hazmat.primitives.ciphers.aead import (
AESCCM,
AESGCM,
AESOCB3,
AESSIV,
ChaCha20Poly1305,
)
def _aead_supported(cls):
try:
cls(b"0" * 32)
return True
except UnsupportedAlgorithm:
return False
@pytest.mark.skipif(
not _aead_supported(ChaCha20Poly1305),
reason="Requires OpenSSL with ChaCha20Poly1305 support",
)
def test_chacha20poly1305_encrypt(benchmark):
chacha = ChaCha20Poly1305(b"\x00" * 32)
benchmark(chacha.encrypt, b"\x00" * 12, b"hello world plaintext", b"")
@pytest.mark.skipif(
not _aead_supported(ChaCha20Poly1305),
reason="Requires OpenSSL with ChaCha20Poly1305 support",
)
def test_chacha20poly1305_decrypt(benchmark):
chacha = ChaCha20Poly1305(b"\x00" * 32)
ct = chacha.encrypt(b"\x00" * 12, b"hello world plaintext", b"")
benchmark(chacha.decrypt, b"\x00" * 12, ct, b"")
def test_aesgcm_encrypt(benchmark):
aes = AESGCM(b"\x00" * 32)
benchmark(aes.encrypt, b"\x00" * 12, b"hello world plaintext", None)
def test_aesgcm_decrypt(benchmark):
aes = AESGCM(b"\x00" * 32)
ct = aes.encrypt(b"\x00" * 12, b"hello world plaintext", None)
benchmark(aes.decrypt, b"\x00" * 12, ct, None)
@pytest.mark.skipif(
not _aead_supported(AESSIV),
reason="Requires OpenSSL with AES-SIV support",
)
def test_aessiv_encrypt(benchmark):
aes = AESSIV(b"\x00" * 32)
benchmark(aes.encrypt, b"hello world plaintext", None)
@pytest.mark.skipif(
not _aead_supported(AESSIV),
reason="Requires OpenSSL with AES-SIV support",
)
def test_aessiv_decrypt(benchmark):
aes = AESSIV(b"\x00" * 32)
ct = aes.encrypt(b"hello world plaintext", None)
benchmark(aes.decrypt, ct, None)
@pytest.mark.skipif(
not _aead_supported(AESOCB3),
reason="Requires OpenSSL with AES-OCB3 support",
)
def test_aesocb3_encrypt(benchmark):
aes = AESOCB3(b"\x00" * 32)
benchmark(aes.encrypt, b"\x00" * 12, b"hello world plaintext", None)
@pytest.mark.skipif(
not _aead_supported(AESOCB3),
reason="Requires OpenSSL with AES-OCB3 support",
)
def test_aesocb3_decrypt(benchmark):
aes = AESOCB3(b"\x00" * 32)
ct = aes.encrypt(b"\x00" * 12, b"hello world plaintext", None)
benchmark(aes.decrypt, b"\x00" * 12, ct, None)
@pytest.mark.skipif(
not _aead_supported(AESCCM),
reason="Requires OpenSSL with AES-CCM support",
)
def test_aesccm_encrypt(benchmark):
aes = AESCCM(b"\x00" * 32)
benchmark(aes.encrypt, b"\x00" * 12, b"hello world plaintext", None)
@pytest.mark.skipif(
not _aead_supported(AESCCM),
reason="Requires OpenSSL with AES-CCM support",
)
def test_aesccm_decrypt(benchmark):
aes = AESCCM(b"\x00" * 32)
ct = aes.encrypt(b"\x00" * 12, b"hello world plaintext", None)
benchmark(aes.decrypt, b"\x00" * 12, ct, None)
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