Module Base64

module Base64: sig .. end

Base64 codec.

8-bit characters are encoded into 6-bit ones using ASCII characters A-Z, a-z, 0-9, and '+' , '/' (in that order).

exception Invalid_char

This exception is raised when reading an invalid character from a base64 input.

val str_encode : string -> string

Encode a string into Base64.

val str_decode : string -> string

Decode a string encoded into Base64, raise Invalid_char if a character in the input string is not a valid one.

val encode : 'a IO.output -> 'a IO.output

Generic base64 encoding over an output.

val decode : IO.input -> IO.input

Generic base64 decoding over an input.