zmq_curve_public(3) =================== 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 linkzmq: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 -------- linkzmq:zmq_z85_decode[3] linkzmq:zmq_z85_encode[3] linkzmq:zmq_curve_keypair[3] linkzmq:zmq_curve[7] AUTHORS ------- This page was written by the 0MQ community. To make a change please read the 0MQ Contribution Policy at .