DOKK / manpages / debian 11 / gnutls-doc / gnutls_x509_crt_get_signature_oid.3.en
gnutls_x509_crt_get_signature_oid(3) gnutls gnutls_x509_crt_get_signature_oid(3)

gnutls_x509_crt_get_signature_oid - API function

#include <gnutls/x509.h>

int gnutls_x509_crt_get_signature_oid(gnutls_x509_crt_t cert, char * oid, size_t * oid_size);

should contain a gnutls_x509_crt_t type
a pointer to a buffer to hold the OID (may be null)
initially holds the size of oid

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.

zero or a negative error code on error.

3.5.0

Report bugs to <bugs@gnutls.org>.
Home page: https://www.gnutls.org

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