SysTutorials Posts

NAME gnutls_ia_handshake_p – API function SYNOPSIS #include <gnutls/extra.h> int gnutls_ia_handshake_p(gnutls_session_t session); ARGUMENTS gnutls_session_t session is a gnutls_session_t structure. DESCRIPTION Predicate to be used after gnutls_handshake() to decide whether to invoke gnutls_ia_handshake(). Usable by both clients and servers. RETURN VALUE non-zero if TLS/IA handshake is expected, zero otherwise. REPORTING BUGS Report bugs to <bug-gnutls [at] gnu.org>….

NAME gnutls_ia_handshake – API function SYNOPSIS #include <gnutls/extra.h> int gnutls_ia_handshake(gnutls_session_t session); ARGUMENTS gnutls_session_t session is a gnutls_session_t structure. DESCRIPTION Perform a TLS/IA handshake. This should be called after gnutls_handshake() iff gnutls_ia_handshake_p(). RETURNS On success, GNUTLS_E_SUCCESS (zero) is returned, otherwise an error code is returned. REPORTING BUGS Report bugs to <bug-gnutls [at] gnu.org>. GnuTLS home page:…

NAME gnutls_ia_get_server_avp_ptr – Returns the pointer which is sent to TLS/IA callback SYNOPSIS #include <gnutls/extra.h> void * gnutls_ia_get_server_avp_ptr(gnutls_ia_server_credentials_t cred); ARGUMENTS gnutls_ia_server_credentials_t cred is a gnutls_ia_client_credentials_t structure. DESCRIPTION Returns the pointer that will be provided to the TLS/IA callback function as the first argument. RETURNS The server callback data pointer. REPORTING BUGS Report bugs to <bug-gnutls…

NAME gnutls_ia_get_client_avp_ptr – Returns the pointer which is sent to TLS/IA callback SYNOPSIS #include <gnutls/extra.h> void * gnutls_ia_get_client_avp_ptr(gnutls_ia_client_credentials_t cred); ARGUMENTS gnutls_ia_client_credentials_t cred is a gnutls_ia_client_credentials_t structure. DESCRIPTION Returns the pointer that will be provided to the TLS/IA callback function as the first argument. RETURNS The client callback data pointer. REPORTING BUGS Report bugs to <bug-gnutls…

NAME gnutls_ia_generate_challenge – API function SYNOPSIS #include <gnutls/extra.h> int gnutls_ia_generate_challenge(gnutls_session_t session, size_t buffer_size, char * buffer); ARGUMENTS gnutls_session_t session is a gnutls_session_t structure. size_t buffer_size size of output buffer. char * buffer pre-allocated buffer to contain buffer_size bytes of output. DESCRIPTION Generate an application challenge that the client cannot control or predict, based on the…

NAME gnutls_ia_free_server_credentials – Used to free an allocated #gnutls_ia_server_credentials_t structure SYNOPSIS #include <gnutls/extra.h> void gnutls_ia_free_server_credentials(gnutls_ia_server_credentials_t sc); ARGUMENTS gnutls_ia_server_credentials_t sc is a gnutls_ia_server_credentials_t structure. DESCRIPTION This structure is complex enough to manipulate directly thus this helper function is provided in order to free (deallocate) it. REPORTING BUGS Report bugs to <bug-gnutls [at] gnu.org>. GnuTLS home page:…

NAME gnutls_ia_free_client_credentials – Used to free an allocated #gnutls_ia_client_credentials_t structure SYNOPSIS #include <gnutls/extra.h> void gnutls_ia_free_client_credentials(gnutls_ia_client_credentials_t sc); ARGUMENTS gnutls_ia_client_credentials_t sc is a gnutls_ia_client_credentials_t structure. DESCRIPTION This structure is complex enough to manipulate directly thus this helper function is provided in order to free (deallocate) it. REPORTING BUGS Report bugs to <bug-gnutls [at] gnu.org>. GnuTLS home page:…

NAME gnutls_ia_extract_inner_secret – API function SYNOPSIS #include <gnutls/extra.h> void gnutls_ia_extract_inner_secret(gnutls_session_t session, char * buffer); ARGUMENTS gnutls_session_t session is a gnutls_session_t structure. char * buffer pre-allocated buffer to hold 48 bytes of inner secret. DESCRIPTION Copy the 48 bytes large inner secret into the specified buffer This function is typically used after the TLS/IA handshake has…

NAME gnutls_ia_endphase_send – API function SYNOPSIS #include <gnutls/extra.h> int gnutls_ia_endphase_send(gnutls_session_t session, int final_p); ARGUMENTS gnutls_session_t session is a gnutls_session_t structure. int final_p Set iff this should signal the final phase. DESCRIPTION Send a TLS/IA end phase message. In the client, this should only be used to acknowledge an end phase message sent by the server….

NAME gnutls_ia_enable – Indicate willingness for TLS/IA application phases SYNOPSIS #include <gnutls/extra.h> void gnutls_ia_enable(gnutls_session_t session, int allow_skip_on_resume); ARGUMENTS gnutls_session_t session is a gnutls_session_t structure. int allow_skip_on_resume non-zero if local party allows to skip the TLS/IA application phases for a resumed session. DESCRIPTION Specify whether we must advertise support for the TLS/IA extension during the handshake….

NAME gnutls_ia_allocate_server_credentials – Used to allocate an gnutls_ia_server_credentials_t structure SYNOPSIS #include <gnutls/extra.h> int gnutls_ia_allocate_server_credentials(gnutls_ia_server_credentials_t * sc); ARGUMENTS gnutls_ia_server_credentials_t * sc is a pointer to a gnutls_ia_server_credentials_t structure. DESCRIPTION This structure is complex enough to manipulate directly thus this helper function is provided in order to allocate it. Adding this credential to a session will enable…

NAME gnutls_ia_allocate_client_credentials – Used to allocate an gnutls_ia_server_credentials_t structure SYNOPSIS #include <gnutls/extra.h> int gnutls_ia_allocate_client_credentials(gnutls_ia_client_credentials_t * sc); ARGUMENTS gnutls_ia_client_credentials_t * sc is a pointer to a gnutls_ia_server_credentials_t structure. DESCRIPTION This structure is complex enough to manipulate directly thus this helper function is provided in order to allocate it. Adding this credential to a session will enable…

NAME gnutls_hmac_set_nonce – API function SYNOPSIS #include <gnutls/crypto.h> void gnutls_hmac_set_nonce(gnutls_hmac_hd_t handle, const void * nonce, size_t nonce_len); ARGUMENTS gnutls_hmac_hd_t handle is a gnutls_cipher_hd_t structure. const void * nonce the data to set as nonce size_t nonce_len The length of data DESCRIPTION This function will set the nonce in the MAC algorithm. SINCE 3.2.0 REPORTING BUGS…

NAME gnutls_hmac_output – API function SYNOPSIS #include <gnutls/crypto.h> void gnutls_hmac_output(gnutls_hmac_hd_t handle, void * digest); ARGUMENTS gnutls_hmac_hd_t handle is a gnutls_hmac_hd_t structure. void * digest is the output value of the MAC DESCRIPTION This function will output the current MAC value and reset the state of the MAC. SINCE 2.10.0 REPORTING BUGS Report bugs to <bugs…

NAME gnutls_hmac_init – API function SYNOPSIS #include <gnutls/crypto.h> int gnutls_hmac_init(gnutls_hmac_hd_t * dig, gnutls_mac_algorithm_t algorithm, const void * key, size_t keylen); ARGUMENTS gnutls_hmac_hd_t * dig is a gnutls_hmac_hd_t structure. gnutls_mac_algorithm_t algorithm the HMAC algorithm to use const void * key The key to be used for encryption size_t keylen The length of the key DESCRIPTION This…

NAME gnutls_hmac_get_len – API function SYNOPSIS #include <gnutls/crypto.h> int gnutls_hmac_get_len(gnutls_mac_algorithm_t algorithm); ARGUMENTS gnutls_mac_algorithm_t algorithm the hmac algorithm to use DESCRIPTION This function will return the length of the output data of the given hmac algorithm. RETURNS The length or zero on error. SINCE 2.10.0 REPORTING BUGS Report bugs to <bugs [at] gnutls.org>. Home page: http://www.gnutls.org…

NAME gnutls_hmac_fast – API function SYNOPSIS #include <gnutls/crypto.h> int gnutls_hmac_fast(gnutls_mac_algorithm_t algorithm, const void * key, size_t keylen, const void * text, size_t textlen, void * digest); ARGUMENTS gnutls_mac_algorithm_t algorithm the hash algorithm to use const void * key the key to use size_t keylen The length of the key const void * text the data…

NAME gnutls_hmac_deinit – API function SYNOPSIS #include <gnutls/crypto.h> void gnutls_hmac_deinit(gnutls_hmac_hd_t handle, void * digest); ARGUMENTS gnutls_hmac_hd_t handle is a gnutls_hmac_hd_t structure. void * digest is the output value of the MAC DESCRIPTION This function will deinitialize all resources occupied by the given hmac context. SINCE 2.10.0 REPORTING BUGS Report bugs to <bugs [at] gnutls.org>. Home…

NAME gnutls_hmac – API function SYNOPSIS #include <gnutls/crypto.h> int gnutls_hmac(gnutls_hmac_hd_t handle, const void * text, size_t textlen); ARGUMENTS gnutls_hmac_hd_t handle is a gnutls_cipher_hd_t structure. const void * text the data to hash size_t textlen The length of data to hash DESCRIPTION This function will hash the given data using the algorithm specified by the context….

NAME gnutls_hex_encode – API function SYNOPSIS #include <gnutls/gnutls.h> int gnutls_hex_encode(const gnutls_datum_t * data, char * result, size_t * result_size); ARGUMENTS const gnutls_datum_t * data contain the raw data char * result the place where hex data will be copied size_t * result_size holds the size of the result DESCRIPTION This function will convert the given…