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gnutls_x509_crt_get_fingerprint(3)  gnutls  gnutls_x509_crt_get_fingerprint(3)

NAME
       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);

ARGUMENTS
       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

DESCRIPTION
       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.

RETURNS
       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.

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

COPYRIGHT
       Copyright (C) 2001- Free Software Foundation, Inc., and others.
       Copying and distribution of this file, with or without modification,
       are permitted in any medium without royalty provided the copyright
       notice and this notice are preserved.

SEE ALSO
       The full documentation for gnutls is maintained as a Texinfo manual.
       If the /usr/local/share/doc/gnutls/ directory does not contain the HTML
       form visit

       https://www.gnutls.org/manual/

gnutls                               3.7.9  gnutls_x509_crt_get_fingerprint(3)