gnutls_x509_crt_get_signature_oid3

Arguments

gnutls_x509_crt_t cert

should contain a gnutls_x509_crt_t type

char * oid

a pointer to a buffer to hold the OID (may be null)

size_t * oid_size

initially holds the size of oid

Overview

This function will return the OID of the signature algorithm that has been used to sign this certificate. This is function is useful in the case gnutls_x509_crt_get_signature_algorithm() returned GNUTLS_SIGN_UNKNOWN.

Returns

zero or a negative error code on error.

Since

3.5.0