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| author | Alex Gaynor <alex.gaynor@gmail.com> | 2013-12-21 14:34:21 -0800 |
|---|---|---|
| committer | Alex Gaynor <alex.gaynor@gmail.com> | 2013-12-21 14:34:21 -0800 |
| commit | 9b7624e3cd4d19cae38bc8f05eea7b6164445453 (patch) | |
| tree | 16b8ecff0fd839b221c596642a118dee9acb05d1 /cryptography | |
| parent | 4447e5a72c6c5d4f3f8fc27711e094540d66ef67 (diff) | |
| parent | 447d64fb69e19c0059e3ba18ef3b1317a716a7c4 (diff) | |
| download | cryptography-9b7624e3cd4d19cae38bc8f05eea7b6164445453.tar.gz cryptography-9b7624e3cd4d19cae38bc8f05eea7b6164445453.tar.bz2 cryptography-9b7624e3cd4d19cae38bc8f05eea7b6164445453.zip | |
Merge pull request #326 from public/unsupported-hmac-hash
Raise UnsupportedAlgorithm when initing HMACs
Diffstat (limited to 'cryptography')
| -rw-r--r-- | cryptography/hazmat/backends/openssl/backend.py | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/cryptography/hazmat/backends/openssl/backend.py b/cryptography/hazmat/backends/openssl/backend.py index 5b7cb3de..b9e8b896 100644 --- a/cryptography/hazmat/backends/openssl/backend.py +++ b/cryptography/hazmat/backends/openssl/backend.py @@ -446,7 +446,11 @@ class _HMACContext(object): ctx = self._backend.ffi.gc(ctx, self._backend.lib.HMAC_CTX_cleanup) evp_md = self._backend.lib.EVP_get_digestbyname( algorithm.name.encode('ascii')) - assert evp_md != self._backend.ffi.NULL + if evp_md == self._backend.ffi.NULL: + raise UnsupportedAlgorithm( + "{0} is not a supported hash on this backend".format( + algorithm.name) + ) res = self._backend.lib.Cryptography_HMAC_Init_ex( ctx, key, len(key), evp_md, self._backend.ffi.NULL ) |