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author | Paul Kehrer <paul.l.kehrer@gmail.com> | 2017-07-08 11:09:53 -0500 |
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committer | Alex Gaynor <alex.gaynor@gmail.com> | 2017-07-08 12:09:53 -0400 |
commit | 33574c6ee06c59d22721c7a7acb503c1bef08289 (patch) | |
tree | 582642c9e3ebb14e9d90fb502a6b30f384c49334 /src | |
parent | 70639eddd1c0c3cfddd27720c853e96d7bf31e21 (diff) | |
download | cryptography-33574c6ee06c59d22721c7a7acb503c1bef08289.tar.gz cryptography-33574c6ee06c59d22721c7a7acb503c1bef08289.tar.bz2 cryptography-33574c6ee06c59d22721c7a7acb503c1bef08289.zip |
change chacha20poly1305_supported to aead_cipher_supported (#3762)
Diffstat (limited to 'src')
-rw-r--r-- | src/cryptography/hazmat/backends/openssl/backend.py | 6 | ||||
-rw-r--r-- | src/cryptography/hazmat/primitives/ciphers/aead.py | 2 |
2 files changed, 6 insertions, 2 deletions
diff --git a/src/cryptography/hazmat/backends/openssl/backend.py b/src/cryptography/hazmat/backends/openssl/backend.py index c63ea32d..98c79be6 100644 --- a/src/cryptography/hazmat/backends/openssl/backend.py +++ b/src/cryptography/hazmat/backends/openssl/backend.py @@ -1934,7 +1934,11 @@ class Backend(object): self, b"chacha20-poly1305", key, nonce, data, associated_data, 16 ) - def chacha20poly1305_supported(self): + def aead_cipher_supported(self, cls): + from cryptography.hazmat.primitives.ciphers.aead import ( + ChaCha20Poly1305 + ) + assert cls is ChaCha20Poly1305 return ( self._lib.EVP_get_cipherbyname(b"chacha20-poly1305") != self._ffi.NULL diff --git a/src/cryptography/hazmat/primitives/ciphers/aead.py b/src/cryptography/hazmat/primitives/ciphers/aead.py index e89c6979..8b2e20c4 100644 --- a/src/cryptography/hazmat/primitives/ciphers/aead.py +++ b/src/cryptography/hazmat/primitives/ciphers/aead.py @@ -12,7 +12,7 @@ from cryptography.hazmat.backends.openssl.backend import backend class ChaCha20Poly1305(object): def __init__(self, key): - if not backend.chacha20poly1305_supported(): + if not backend.aead_cipher_supported(type(self)): raise exceptions.UnsupportedAlgorithm( "ChaCha20Poly1305 is not supported by this version of OpenSSL", exceptions._Reasons.UNSUPPORTED_CIPHER |