pub unsafe extern "C" fn nettle_rsa_md5_sign(
key: *const rsa_private_key,
hash: *mut md5_ctx,
signature: *mut __mpz_struct,
) -> c_int
pub unsafe extern "C" fn nettle_rsa_md5_sign(
key: *const rsa_private_key,
hash: *mut md5_ctx,
signature: *mut __mpz_struct,
) -> c_int