gnutls_decode_rs_value(3)          gnutls          gnutls_decode_rs_value(3)

NAME         top

       gnutls_decode_rs_value - API function

SYNOPSIS         top

       #include <gnutls/crypto.h>

       int gnutls_decode_rs_value(const gnutls_datum_t * sig_value,
       gnutls_datum_t * r, gnutls_datum_t * s);

ARGUMENTS         top

       const gnutls_datum_t * sig_value
                   holds a Dss-Sig-Value DER or BER encoded structure

       gnutls_datum_t * r
                   will contain the r value

       gnutls_datum_t * s
                   will contain the s value

DESCRIPTION         top

       This function will decode the provided  sig_value , into  r and  s
       elements. The Dss-Sig-Value is used for DSA and ECDSA signatures.

       The output values may be padded with a zero byte to prevent them from
       being interpreted as negative values. The value should be deallocated
       using gnutls_free().

RETURNS         top

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

SINCE         top


REPORTING BUGS         top

       Report bugs to <>.
       Home page:

COPYRIGHT         top

       Copyright © 2001-2019 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         top

       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 

COLOPHON         top

       This page is part of the GnuTLS (GnuTLS Transport Layer Security
       Library) project.  Information about the project can be found at 
       ⟨⟩.  If you have a bug report for this manual
       page, send it to  This page was obtained from the
       tarball gnutls-3.6.9.tar.xz fetched from
       ⟨⟩ on 2020-02-08.  If you discover
       any rendering problems in this HTML version of the page, or you
       believe there is a better or more up-to-date source for the page, or
       you have corrections or improvements to the information in this
       COLOPHON (which is not part of the original manual page), send a mail

gnutls                              3.6.9          gnutls_decode_rs_value(3)