| =pod |
| |
| =head1 NAME |
| |
| RSA_size, RSA_bits - get RSA modulus size |
| |
| =head1 SYNOPSIS |
| |
| #include <openssl/rsa.h> |
| |
| int RSA_size(const RSA *rsa); |
| |
| int RSA_bits(const RSA *rsa); |
| |
| =head1 DESCRIPTION |
| |
| RSA_size() returns the RSA modulus size in bytes. It can be used to |
| determine how much memory must be allocated for an RSA encrypted |
| value. |
| |
| RSA_bits() returns the number of significant bits. |
| |
| B<rsa> and B<rsa-E<gt>n> must not be B<NULL>. |
| |
| =head1 RETURN VALUE |
| |
| The size. |
| |
| =head1 SEE ALSO |
| |
| L<rsa(3)>, L<BN_num_bits(3)> |
| |
| =head1 HISTORY |
| |
| RSA_bits() was added in OpenSSL 1.1.0. |
| |
| =cut |
