Available in all subroutines.
but with the ciphertext encoded in Base64.
The plaintext returned is also encoded in Base64.
Base64 decoding behaves as if by a call to
See that function for handling invalid characters and the behavior of padding.
digest.base64_decode, the decoded output is used directly
(rather than constructing a VCL STRING type), and so binary content
is permitted, including possible NUL bytes.
Base64 encoding behaves as if by a call to
Note that the key and Initialization Vector (IV) are encoded as hex strings.