Base64

Base64 functions are exposed to Lua scripts with the suricata.base64 library. For example::

local base64 = require("suricata.base64")

Functions


``encode(string)``
^^^^^^^^^^^^^^^^^^

Encode a buffer with standard base64 encoding. This standard encoding
includes padding.

``decode(string)``
^^^^^^^^^^^^^^^^^^

Decode a base64 string that contains padding.

``encode_nopad(string)``
^^^^^^^^^^^^^^^^^^^^^^^^

Encode a buffer with standard base64 encoding but don't include any
padding.

``decode_nopad(string)``
^^^^^^^^^^^^^^^^^^^^^^^^

Decode a base64 string that contains no padding.

``decode_padopt(string)``
^^^^^^^^^^^^^^^^^^^^^^^^^

Decode a base64 string that may or may not contain trailing padding.

``decode_rfc2045(string)``
^^^^^^^^^^^^^^^^^^^^^^^^^^

Decode an RFC 2045 formatted base64 string.

``decode_rfc4648(string)``
^^^^^^^^^^^^^^^^^^^^^^^^^^

Decode an RFC 4648 formatted base64 string.

Implementation Details

The base64 functions provided come from the Rust base64 library documented at https://docs.rs/base64 and correspond to the STANDARD and STANDARD_NO_PAD base64 engines provided in that library.