Can a public key have a different length (encryption) than the private key?

Question

I have a 1024 bits private key, and use it to generate a public key. Does that automatically mean that my public key also has 1024 encryption? Or can it be of a lesser encryptio

Answer 1

For RSA your public key can be as small as 2 bits. That is the number 3 can be your public key. A popular choice for RSA public key is 17.