# zmq_z85_decode(3) Manual Page

## NAME

zmq_z85_decode - decode a binary key from Z85 printable text

## SYNOPSIS

uint8_t *zmq_z85_decode (uint8_t *dest, char *string);

## DESCRIPTION

The zmq_z85_decode() function shall decode string into dest. The length of string shall be divisible by 5. dest must be large enough for the decoded value (0.8 x strlen (string)).

The encoding shall follow the ZMQ RFC 32 specification.

## RETURN VALUE

The zmq_z85_decode() function shall return dest if successful, else it shall return NULL.

## EXAMPLE

Decoding a CURVE key

    char decoded [] = "rq:rM>}U?@Lns47E1%kR.o@n%FcmmsL/@{H8]yf7";
    uint8_t public_key [32];
    zmq_z85_decode (public_key, decoded);

## SEE ALSO

zmq_z85_decode(3) zmq_curve_keypair(3) zmq_curve(7)

## AUTHORS

This page was written by the ØMQ community. To make a change please read the ØMQ Contribution Policy at http://www.zeromq.org/docs:contributing.