> I mean, firstly, no. What you're describing is what we call "Textbook RSA" and that's a classroom exercise rather than a technology you should use in practice

> I mean, firstly, no. What you're describing is what we call "Textbook RSA" and that's a classroom exercise rather than a technology you should use in practice - it's unsafe. ? I'm not talking about encrypting data with RSA, but how else do you perform signing with RSA except by using the private key to transform some message that can then be verified with the public key? I see now the article's trying to describe elliptic curve Diffie-Hellman, which makes much more sense (but makes the comparison to RSA in the article confusing...)