gnutls_dh_get_prime_bits(3) gnutls gnutls_dh_get_prime_bits(3)

NAME gnutls_dh_get_prime_bits - API function

SYNOPSIS #include <gnutls/gnutls.h>

int gnutls_dh_get_prime_bits(gnutls_session_t session);

ARGUMENTS gnutls_session_t session is a gnutls session

DESCRIPTION This function will return the bits of the prime used in the last Diffie-Hellman key exchange with the peer. Should be used for both anonymous and ephemeral Diffie-Hellman. Note that some ciphers, like RSA and DSA without DHE, does not use a Diffie-Hellman key exchange, and then this function will return 0.

RETURNS The Diffie-Hellman bit strength is returned, or 0 if no Diffie-Hellman key exchange was done, or a negative error code on failure.

REPORTING BUGS Report bugs to <>. GnuTLS home page: General help using GNU software:

COPYRIGHT Copyright © 2008 Free Software Foundation. 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 info and gnutls programs are properly installed at your site, the command

info gnutls

should give you access to the complete manual.

gnutls gnutls_dh_get_prime_bits(3)