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| -rw-r--r-- | docs/hazmat/primitives/symmetric-encryption.rst | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/docs/hazmat/primitives/symmetric-encryption.rst b/docs/hazmat/primitives/symmetric-encryption.rst index 8d3769f5..83230287 100644 --- a/docs/hazmat/primitives/symmetric-encryption.rst +++ b/docs/hazmat/primitives/symmetric-encryption.rst @@ -35,10 +35,12 @@ in an "encrypt-then-MAC" formulation as `described by Colin Percival`_. .. doctest:: + >>> import os >>> from cryptography.hazmat.primitives.ciphers import Cipher, algorithms, modes >>> from cryptography.hazmat.backends import default_backend >>> backend = default_backend() - >>> cipher = Cipher(algorithms.AES(key), modes.CBC(iv), backend=backend) + >>> key = os.urandom(24) + >>> cipher = Cipher(algorithms.AES(key), modes.CBC(os.urandom(16)), backend=backend) >>> encryptor = cipher.encryptor() >>> ct = encryptor.update(b"a secret message") + encryptor.finalize() >>> decryptor = cipher.decryptor() |