Merge pull request #1054 from Zolmeister/generate-with-e

        }

    }

    /// Generates a public/private key pair with the specified size.

    ///

    /// This corresponds to [`RSA_generate_key_ex`].

    ///

    /// [`RSA_generate_key_ex`]: https://www.openssl.org/docs/man1.1.0/crypto/RSA_generate_key_ex.html

    pub fn generate_with_e(bits: u32, e: &BigNumRef) -> Result<Rsa<Private>, ErrorStack> {

        ffi::init();

        unsafe {

            let rsa = Rsa::from_ptr(cvt_p(ffi::RSA_new())?);

            cvt(ffi::RSA_generate_key_ex(

                rsa.0,

                bits as c_int,

                e.as_ptr(),

                ptr::null_mut(),

            ))?;

            Ok(rsa)

        }

    }

    // FIXME these need to identify input formats

    private_key_from_pem! {

        /// Deserializes a private key from a PEM-encoded PKCS#1 RSAPrivateKey structure.