How are software license keys generated?

License keys are the defacto-standard as an anti-piracy measure. To be honest, this strikes me as (in)Security Through Obscurity, although I really have no idea how license keys are generated. What is a good (secure) example of license key generation? What cryptographic primitive (if any) are they using? Is it a message digest? If so, … Read more

What is the difference between encrypting and signing in asymmetric encryption? [closed]

Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. Want to improve this question? Update the question so it’s on-topic for Stack Overflow. Closed 12 months ago. Improve this question What is the difference between encrypting some data vs signing some data (using RSA)? Does it simply reverse the … Read more