libzmq/doc/zmq_z85_encode.adoc
Francesco Montorsi b6ca9b2983 Feature: modernize API documentation
* migrate from the old, unmaintained "asciidoc-py" tool to the new "asciidoctor" generator
* migrate from asciidoc-py syntax to the modern Asciidoc syntax (especially page titles and section titles)
* remove the need of "xmlto" utility to create the manpage output; use asciidoctor for that
* add HTML output support to the doc/Makefile by using asciidoctor
* change API documentation files extension from .txt to .adoc to make it more explicit that they are Asciidoc-encoded (as a bonus several IDE plugins will autodetect the .adoc format as Asciidoc)
* remove asciidoc.conf: asciidoctor does not support that; this also required replacing the macro linkzmq into all documentation pages
* add a new Github action CI do deploy to Github Pages the static HTMLs produced by Asciidoctors
* removed references to the "xmlto" and "a2x" tools from the build and packaging systems: Asciidoctor can convert the documentation directly to e.g. pdf (via extended converters) and anyway there was no code/target for using "xmlto" and "a2x" tools anyway
2023-10-25 23:59:38 +02:00

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= zmq_z85_encode(3)
== NAME
zmq_z85_encode - encode a binary key as Z85 printable text
== SYNOPSIS
*char *zmq_z85_encode (char *dest, const uint8_t *data, size_t size);*
== DESCRIPTION
The _zmq_z85_encode()_ function shall encode the binary block specified
by 'data' and 'size' into a string in 'dest'. The size of the binary block
must be divisible by 4. The 'dest' must have sufficient space for size * 1.25
plus 1 for a null terminator. A 32-byte CURVE key is encoded as 40 ASCII
characters plus a null terminator.
The encoding shall follow the ZMQ RFC 32 specification.
== RETURN VALUE
The _zmq_z85_encode()_ function shall return 'dest' if successful, else it
shall return NULL.
== EXAMPLE
.Encoding a CURVE key
----
#include <sodium.h>
uint8_t public_key [32];
uint8_t secret_key [32];
int rc = crypto_box_keypair (public_key, secret_key);
assert (rc == 0);
char encoded [41];
zmq_z85_encode (encoded, public_key, 32);
puts (encoded);
----
== SEE ALSO
xref:zmq_z85_decode.adoc[zmq_z85_decode]
xref:zmq_curve_keypair.adoc[zmq_curve_keypair]
xref:zmq_curve_public.adoc[zmq_curve_public]
xref:zmq_curve.adoc[zmq_curve]
== AUTHORS
This page was written by the 0MQ community. To make a change please
read the 0MQ Contribution Policy at <http://www.zeromq.org/docs:contributing>.