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- 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 <http://www.zeromq.org/docs:contributing>.
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