gnutls_privkey_derive_secret(3) gnutls gnutls_privkey_derive_secret(3) NAME gnutls_privkey_derive_secret - API function SYNOPSIS #include int gnutls_privkey_derive_secret(gnutls_privkey_t privkey, gnutls_pubkey_t pubkey, const gnutls_datum_t * nonce, gnutls_datum_t * secret, unsigned int flags); ARGUMENTS gnutls_privkey_t privkey a private key of type gnutls_privkey_t gnutls_pubkey_t pubkey a public key of type gnutls_pubkey_t const gnutls_datum_t * nonce an optional nonce value gnutls_datum_t * secret where shared secret will be stored unsigned int flags must be zero DESCRIPTION This function will calculate a shared secret from our privkey and peer's pubkey . The result will be stored in secret , whose data member should be freed after use using gnutls_free(). privkey and pubkey must be backed by the X.509 keys. RETURNS On success, GNUTLS_E_SUCCESS (0) is returned, otherwise a negative error value. SINCE 3.8.2 REPORTING BUGS Report bugs to . Home page: https://www.gnutls.org COPYRIGHT Copyright (C) 2001-2023 Free Software Foundation, Inc., and others. Copying and distribution of this file, with or without modification, are permitted in any medium without royalty provided the copyright notice and this notice are preserved. SEE ALSO The full documentation for gnutls is maintained as a Texinfo manual. If the /usr/share/doc/gnutls/ directory does not contain the HTML form visit https://www.gnutls.org/manual/ gnutls 3.8.5 gnutls_privkey_derive_secret(3)