- crypto_data_decrypt(+CipherText, +Algorithm, +Key, +IV, -PlainText, +Options)
- Decrypt the given CipherText, using the symmetric algorithm
Algorithm, key Key, and initialization vector IV, to give PlainText.
CipherText must be a string, atom or list of codes or characters,
and PlainText is created as a string. Key and IV are typically
lists of bytes, though atoms and strings are also permitted.
Algorithm must be an algorithm which your copy of OpenSSL knows. See
crypto_data_encrypt/6 for an example.
- Encoding to use for CipherText. Default is
- For block ciphers, the padding scheme to use. Default is
block. You can disable padding by supplying
- For authenticated encryption schemes, the tag must be specified as
a list of bytes exactly as they were generated upon encryption.
This option requires OpenSSL 1.1.0 or greater.
- If the tag length is smaller than 16, this option must be used
to permit such shorter tags. This is used as a safeguard against
truncation attacks, where an attacker provides a short tag that
is easier to guess.