RSA_size(3) OpenSSL RSA_size(3) NAME RSA_size - get RSA modulus size SYNOPSIS #include <openssl/rsa.h> int RSA_size(const RSA *rsa); 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. rsa->n must not be NULL. RETURN VALUE The size in bytes. SEE ALSO rsa(3) HISTORY RSA_size() is available in all versions of SSLeay and OpenSSL. 0.9.7a 2002-08-05 RSA_size(3)