gnutls_x509_crt_get_fingerprint - Man Page

#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);

gnutls_x509_crt_t cert

should contain a gnutls_x509_crt_t type

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  buf

This function will calculate and copy the certificate's fingerprint in the provided buffer. The fingerprint is a hash of the DER-encoded data of the certificate.

If the buffer is null then only the size will be filled.

GNUTLS_E_SHORT_MEMORY_BUFFER if the provided buffer is not long enough, and in that case the *buf_size will be updated with the required size.  On success 0 is returned.

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

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