gnutls_decode_ber_digest_info(3)

NAME
gnutls_decode_ber_digest_info - API function

SYNOPSIS
#include <gnutls/crypto.h>

int gnutls_decode_ber_digest_info(const gnutls_datum_t * info, gnutls_digest_algorithm_t * hash, unsigned char * digest, unsigned int * digest_size);

ARGUMENTS

const gnutls_datum_t * info
    an RSA BER encoded DigestInfo structure

gnutls_digest_algorithm_t * hash
    will contain the hash algorithm of the structure

unsigned char * digest
    will contain the hash output of the structure

unsigned int * digest_size
    will contain the hash size of the structure; initially must hold the maximum size of digest

DESCRIPTION
This function will parse an RSA PKCS1 1.5 DigestInfo structure and report the hash algorithm used as well as the digest data.

RETURNS
On success, GNUTLS_E_SUCCESS (0) is returned, otherwise an error code is returned.

SINCE
3.5.0

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

COPYRIGHT
Copyright © 2001-2020 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/share/doc/gnutls/ directory does not contain the HTML form visit

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