Api function
#include <gnutls/gnutls.h>
int gnutls_srtp_get_keys(gnutls_session_t session, void * key_material, unsigned int key_material_size, gnutls_datum_t * client_key, gnutls_datum_t * client_salt, gnutls_datum_t * server_key, gnutls_datum_t * server_salt);
is a gnutls_session_t structure.
Space to hold the generated key material
The maximum size of the key material
The master client write key, pointing inside the key material
The master client write salt, pointing inside the key material
The master server write key, pointing inside the key material
The master server write salt, pointing inside the key material
This is a helper function to generate the keying material for SRTP. It requires the space of the key material to be pre-allocated (should be at least 2x the maximum key size and salt size). The client_key , client_salt , server_key and server_salt are convenience datums that point inside the key material. They may be NULL.
On success the size of the key material is returned, otherwise, GNUTLS_E_SHORT_MEMORY_BUFFER if the buffer given is not sufficient, or a negative error code.
Since 3.1.4
Report bugs to <[email protected]>.
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