File: RSA_size.pod

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=pod

=head1 NAME

RSA_size - get RSA modulus size

=head1 SYNOPSIS

 #include <openssl/rsa.h>

 int RSA_size(const RSA *rsa);

=head1 DESCRIPTION

This function returns the RSA modulus size in bytes. It can be used to
determine how much memory must be allocated for an RSA encrypted
value.

B<rsa-E<gt>n> must not be B<NULL>.

=head1 RETURN VALUE

The size in bytes.

=head1 SEE ALSO

L<rsa(3)|rsa(3)>

=head1 HISTORY

RSA_size() is available in all versions of SSLeay and OpenSSL.

=cut