diff options
| -rw-r--r-- | cryptography/hazmat/backends/openssl/backend.py | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/cryptography/hazmat/backends/openssl/backend.py b/cryptography/hazmat/backends/openssl/backend.py index 5a434dcd..c8a93ef6 100644 --- a/cryptography/hazmat/backends/openssl/backend.py +++ b/cryptography/hazmat/backends/openssl/backend.py @@ -389,6 +389,11 @@ class Backend(object): return _MemoryBIO(self._ffi.gc(bio, self._lib.BIO_free), data_char_p) def _evp_pkey_to_private_key(self, evp_pkey): + """ + Return the appropriate type of PrivateKey given an evp_pkey cdata + pointer. + """ + type = evp_pkey.type if type == self._lib.EVP_PKEY_RSA: @@ -427,12 +432,15 @@ class Backend(object): def _pem_password_cb(self, password): """ - Generate a pem_password_cb that returns password + Generate a pem_password_cb function pointer that copied the password to + OpenSSL as required and returns the number of bytes copied. typedef int pem_password_cb(char *buf, int size, int rwflag, void *userdata); - suitable for decrypting PKCS8 files and so on + Useful for decrypting PKCS8 files and so on. + + Returns a tuple of (cdata function pointer, callback function). """ def pem_password_cb(buf, size, writing, userdata): |