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| author | Paul Kehrer <paul.l.kehrer@gmail.com> | 2016-03-09 18:45:40 -0400 |
|---|---|---|
| committer | Paul Kehrer <paul.l.kehrer@gmail.com> | 2016-03-09 18:45:40 -0400 |
| commit | f2e972d50dd951556af9694ecac9c9a00097e3f3 (patch) | |
| tree | 2dd3aa8ae94ba385eb5307356d4c32fcb96dbc65 /src/cryptography/hazmat/backends/openssl/hmac.py | |
| parent | 801999fe6ba5391b098a20047d7f2644c57bcf4c (diff) | |
| download | cryptography-f2e972d50dd951556af9694ecac9c9a00097e3f3.tar.gz cryptography-f2e972d50dd951556af9694ecac9c9a00097e3f3.tar.bz2 cryptography-f2e972d50dd951556af9694ecac9c9a00097e3f3.zip | |
opaque HMAC_CTX, which requires some helper functions
Diffstat (limited to 'src/cryptography/hazmat/backends/openssl/hmac.py')
| -rw-r--r-- | src/cryptography/hazmat/backends/openssl/hmac.py | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/src/cryptography/hazmat/backends/openssl/hmac.py b/src/cryptography/hazmat/backends/openssl/hmac.py index dcf2fbaf..ab1ad46f 100644 --- a/src/cryptography/hazmat/backends/openssl/hmac.py +++ b/src/cryptography/hazmat/backends/openssl/hmac.py @@ -20,10 +20,10 @@ class _HMACContext(object): self._backend = backend if ctx is None: - ctx = self._backend._ffi.new("HMAC_CTX *") - self._backend._lib.HMAC_CTX_init(ctx) + ctx = self._backend._lib.Cryptography_HMAC_CTX_new() + self._backend.openssl_assert(ctx != self._backend._ffi.NULL) ctx = self._backend._ffi.gc( - ctx, self._backend._lib.HMAC_CTX_cleanup + ctx, self._backend._lib.Cryptography_HMAC_CTX_free ) evp_md = self._backend._lib.EVP_get_digestbyname( algorithm.name.encode('ascii')) @@ -44,10 +44,10 @@ class _HMACContext(object): algorithm = utils.read_only_property("_algorithm") def copy(self): - copied_ctx = self._backend._ffi.new("HMAC_CTX *") - self._backend._lib.HMAC_CTX_init(copied_ctx) + copied_ctx = self._backend._lib.Cryptography_HMAC_CTX_new() + self._backend.openssl_assert(copied_ctx != self._backend._ffi.NULL) copied_ctx = self._backend._ffi.gc( - copied_ctx, self._backend._lib.HMAC_CTX_cleanup + copied_ctx, self._backend._lib.Cryptography_HMAC_CTX_free ) res = self._backend._lib.Cryptography_HMAC_CTX_copy( copied_ctx, self._ctx @@ -72,7 +72,6 @@ class _HMACContext(object): ) self._backend.openssl_assert(res != 0) self._backend.openssl_assert(outlen[0] == self.algorithm.digest_size) - self._backend._lib.HMAC_CTX_cleanup(self._ctx) return self._backend._ffi.buffer(buf)[:outlen[0]] def verify(self, signature): |