Author: Linux Manual

gnutls_x509_crt_get_private_key_usage_period – API function Synopsis#include <gnutls/x509.h> int gnutls_x509_crt_get_private_key_usage_period(gnutls_x509_crt_t cert, time_t * activation, time_t * expiration, unsigned int * critical); Argumentsgnutls_x509_crt_t cert should contain a gnutls_x509_crt_t structure time_t * activation The activation time time_t * expiration The expiration time unsigned int * critical the extension statusDescriptionThis function will return the expiration and activation times of the…

gnutls_x509_crt_get_preferred_hash_algorithm – API function Synopsis#include <gnutls/compat.h> int gnutls_x509_crt_get_preferred_hash_algorithm(gnutls_x509_crt_t crt, gnutls_digest_algorithm_t * hash, unsigned int * mand); Argumentsgnutls_x509_crt_t crt Holds the certificate gnutls_digest_algorithm_t * hash The result of the call with the hash algorithm used for signature unsigned int * mand If non-zero it means that the algorithm MUST use this hash. May be NULL.DescriptionThis function…

gnutls_x509_crt_get_policy – API function Synopsis#include <gnutls/x509.h> int gnutls_x509_crt_get_policy(gnutls_x509_crt_t crt, int indx, struct gnutls_x509_policy_st * policy, unsigned int * critical); Argumentsgnutls_x509_crt_t crt should contain a gnutls_x509_crt_t structure int indx This specifies which policy to return. Use (0) to get the first one. struct gnutls_x509_policy_st * policy A pointer to a policy structure. unsigned int * critical…

gnutls_x509_crt_get_pk_rsa_raw – API function Synopsis#include <gnutls/x509.h> int gnutls_x509_crt_get_pk_rsa_raw(gnutls_x509_crt_t crt, gnutls_datum_t * m, gnutls_datum_t * e); Argumentsgnutls_x509_crt_t crt Holds the certificate gnutls_datum_t * m will hold the modulus gnutls_datum_t * e will hold the public exponentDescriptionThis function will export the RSA public key’s parameters found in the given structure. The new parameters will be allocated using…

gnutls_x509_crt_get_pk_dsa_raw – API function Synopsis#include <gnutls/x509.h> int gnutls_x509_crt_get_pk_dsa_raw(gnutls_x509_crt_t crt, gnutls_datum_t * p, gnutls_datum_t * q, gnutls_datum_t * g, gnutls_datum_t * y); Argumentsgnutls_x509_crt_t crt Holds the certificate gnutls_datum_t * p will hold the p gnutls_datum_t * q will hold the q gnutls_datum_t * g will hold the g gnutls_datum_t * y will hold the yDescriptionThis function…

gnutls_x509_crt_get_pk_algorithm – API function Synopsis#include <gnutls/x509.h> int gnutls_x509_crt_get_pk_algorithm(gnutls_x509_crt_t cert, unsigned int * bits); Argumentsgnutls_x509_crt_t cert should contain a gnutls_x509_crt_t structure unsigned int * bits if bits is non null it will hold the size of the parameters’ in bitsDescriptionThis function will return the public key algorithm of an X.509 certificate. If bits is non null,…

gnutls_x509_crt_get_name_constraints – API function Synopsis#include <gnutls/x509.h> int gnutls_x509_crt_get_name_constraints(gnutls_x509_crt_t crt, gnutls_x509_name_constraints_t nc, unsigned int flags, unsigned int * critical); Argumentsgnutls_x509_crt_t crt should contain a gnutls_x509_crt_t structure gnutls_x509_name_constraints_t nc The nameconstraints intermediate structure unsigned int flags zero or GNUTLS_NAME_CONSTRAINTS_FLAG_APPEND unsigned int * critical the extension statusDescriptionThis function will return an intermediate structure containing the name constraints of…

gnutls_x509_crt_get_key_usage – API function Synopsis#include <gnutls/x509.h> int gnutls_x509_crt_get_key_usage(gnutls_x509_crt_t cert, unsigned int * key_usage, unsigned int * critical); Argumentsgnutls_x509_crt_t cert should contain a gnutls_x509_crt_t structure unsigned int * key_usage where the key usage bits will be stored unsigned int * critical will be non-zero if the extension is marked as criticalDescriptionThis function will return certificate’s key…

gnutls_x509_crt_get_key_purpose_oid – API function Synopsis#include <gnutls/x509.h> int gnutls_x509_crt_get_key_purpose_oid(gnutls_x509_crt_t cert, int indx, void * oid, size_t * oid_size, unsigned int * critical); Argumentsgnutls_x509_crt_t cert should contain a gnutls_x509_crt_t structure int indx This specifies which OID to return. Use (0) to get the first one. void * oid a pointer to a buffer to hold the OID…

gnutls_x509_crt_get_key_id – API function Synopsis#include <gnutls/x509.h> int gnutls_x509_crt_get_key_id(gnutls_x509_crt_t crt, unsigned int flags, unsigned char * output_data, size_t * output_data_size); Argumentsgnutls_x509_crt_t crt Holds the certificate unsigned int flags should be 0 for now unsigned char * output_data will contain the key ID size_t * output_data_size holds the size of output_data (and will be replaced by the…

gnutls_x509_crt_get_issuer_unique_id – API function Synopsis#include <gnutls/x509.h> int gnutls_x509_crt_get_issuer_unique_id(gnutls_x509_crt_t crt, char * buf, size_t * buf_size); Argumentsgnutls_x509_crt_t crt Holds the certificate char * buf user allocated memory buffer, will hold the unique id size_t * buf_size size of user allocated memory buffer (on input), will hold actual size of the unique ID on return.DescriptionThis function will…

gnutls_x509_crt_get_issuer_dn_oid – API function Synopsis#include <gnutls/x509.h> int gnutls_x509_crt_get_issuer_dn_oid(gnutls_x509_crt_t cert, int indx, void * oid, size_t * oid_size); Argumentsgnutls_x509_crt_t cert should contain a gnutls_x509_crt_t structure int indx This specifies which OID to return. Use (0) to get the first one. void * oid a pointer to a buffer to hold the OID (may be null) size_t…

gnutls_x509_crt_get_issuer_dn_by_oid – API function Synopsis#include <gnutls/x509.h> int gnutls_x509_crt_get_issuer_dn_by_oid(gnutls_x509_crt_t cert, const char * oid, int indx, unsigned int raw_flag, void * buf, size_t * buf_size); Argumentsgnutls_x509_crt_t cert should contain a gnutls_x509_crt_t structure const char * oid holds an Object Identified in null terminated string int indx In case multiple same OIDs exist in the RDN, this…

gnutls_x509_crt_get_issuer_dn2 – API function Synopsis#include <gnutls/x509.h> int gnutls_x509_crt_get_issuer_dn2(gnutls_x509_crt_t cert, gnutls_datum_t * dn); Argumentsgnutls_x509_crt_t cert should contain a gnutls_x509_crt_t structure gnutls_datum_t * dn a pointer to a structure to hold the nameDescriptionThis function will allocate buffer and copy the name of issuer of the Certificate. The name will be in the form "C=xxxx,O=yyyy,CN=zzzz" as described in…

gnutls_x509_crt_get_issuer_dn – API function Synopsis#include <gnutls/x509.h> int gnutls_x509_crt_get_issuer_dn(gnutls_x509_crt_t cert, char * buf, size_t * buf_size); Argumentsgnutls_x509_crt_t cert should contain a gnutls_x509_crt_t structure char * buf a pointer to a structure to hold the name (may be null) size_t * buf_size initially holds the size of bufDescriptionThis function will copy the name of the Certificate issuer…

gnutls_x509_crt_get_issuer_alt_othername_oid – API function Synopsis#include <gnutls/x509.h> int gnutls_x509_crt_get_issuer_alt_othername_oid(gnutls_x509_crt_t cert, unsigned int seq, void * ret, size_t * ret_size); Argumentsgnutls_x509_crt_t cert should contain a gnutls_x509_crt_t structure unsigned int seq specifies the sequence number of the alt name (0 for the first one, 1 for the second etc.) void * ret is the place where the otherName…

gnutls_x509_crt_get_issuer_alt_name2 – API function Synopsis#include <gnutls/x509.h> int gnutls_x509_crt_get_issuer_alt_name2(gnutls_x509_crt_t cert, unsigned int seq, void * ian, size_t * ian_size, unsigned int * ian_type, unsigned int * critical); Argumentsgnutls_x509_crt_t cert should contain a gnutls_x509_crt_t structure unsigned int seq specifies the sequence number of the alt name (0 for the first one, 1 for the second etc.) void…

gnutls_x509_crt_get_issuer_alt_name – API function Synopsis#include <gnutls/x509.h> int gnutls_x509_crt_get_issuer_alt_name(gnutls_x509_crt_t cert, unsigned int seq, void * ian, size_t * ian_size, unsigned int * critical); Argumentsgnutls_x509_crt_t cert should contain a gnutls_x509_crt_t structure unsigned int seq specifies the sequence number of the alt name (0 for the first one, 1 for the second etc.) void * ian is the…

gnutls_x509_crt_get_issuer – API function Synopsis#include <gnutls/x509.h> int gnutls_x509_crt_get_issuer(gnutls_x509_crt_t cert, gnutls_x509_dn_t * dn); Argumentsgnutls_x509_crt_t cert should contain a gnutls_x509_crt_t structure gnutls_x509_dn_t * dn output variable with pointer to uint8_t DNDescriptionReturn the Certificate’s Issuer DN as a gnutls_x509_dn_t data type, that can be decoded using gnutls_x509_dn_get_rdn_ava(). Note that dn should be treated as constant. Because it points…

gnutls_x509_crt_get_fingerprint – API function Synopsis#include <gnutls/x509.h> int gnutls_x509_crt_get_fingerprint(gnutls_x509_crt_t cert, gnutls_digest_algorithm_t algo, void * buf, size_t * buf_size); Argumentsgnutls_x509_crt_t cert should contain a gnutls_x509_crt_t structure gnutls_digest_algorithm_t algo is a digest algorithm void * buf a pointer to a structure to hold the fingerprint (may be null) size_t * buf_size initially holds the size of bufDescriptionThis function…