[MAN] zmq_curve_public

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ZMQ_CURVE_PUBLIC

Section: 0MQ Manual (3)
Updated: 07/10/2019
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NAME

zmq_curve_public - derive the public key from a private key  

SYNOPSIS

int zmq_curve_public (char *z85_public_key, char *z85_secret_key);  

DESCRIPTION

The zmq_curve_public() function shall derive the public key from a private key. The caller provides two buffers, each at least 41 octets large. In z85_secret_key the caller shall provide the private key, and the function will store the public key in z85_public_key. The keys are encoded using zmq_z85_encode(3).  

RETURN VALUE

The zmq_curve_public() function shall return 0 if successful, else it shall return -1 and set errno to one of the values defined below.  

ERRORS

ENOTSUP

The libzmq library was not built with cryptographic support (libsodium).

 

EXAMPLE

Deriving the public key from a CURVE private key.

char public_key [41];
char secret_key [41];
int rc = zmq_curve_keypair (public_key, secret_key);
assert (rc == 0);
char derived_public[41];
rc = zmq_curve_public (derived_public, secret_key);
assert (rc == 0);
assert (!strcmp (derived_public, public_key));

 

SEE ALSO

zmq_z85_decode(3) zmq_z85_encode(3) zmq_curve_keypair(3) zmq_curve(7)  

AUTHORS

This page was written by the 0MQ community. To make a change please read the 0MQ Contribution Policy at m[blue]http://www.zeromq.org/docs:contributingm[].

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Index

NAME

SYNOPSIS

DESCRIPTION

RETURN VALUE

ERRORS

EXAMPLE

SEE ALSO

AUTHORS

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