=pod=head1 NAMERSA_size - Get RSA modulus size=head1 SYNOPSIS #include <openssl/rsa.h> int RSA_size(RSA *rsa);=head1 DESCRIPTIONThis function returns the RSA modulus size in bytes. It can be used todetermine how much memory must be allocated for an RSA encryptedvalue.B<rsa->n> must not be B<NULL>.=head1 RETURN VALUEThe size in bytes.=head1 SEE ALSOrsa(3)=head1 HISTORYRSA_size() is available in all versions of SSLeay and OpenSSL.=cut