Manpages - gnutls_decode_rs_value.3

gnutls_decode_rs_value - API function

#include <gnutls/crypto.h>

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

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

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().

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

3.6.0

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

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