Public-key cryptography can be used for (at least) two purposes: A person’s public key can be used to send encrypted messages to the keys’ owner. And that person can use their private key to create digital signatures, demonstrating the authenticity of a message.

v1.0: Initial version

v1.1: Change title from PUBLIC KEY KRÜPTO to PUBLIK KEY KRYPTO to make it sound even more Swedish

to to make it sound even more Swedish v1.2: Update the IDEA logo

Initially published 2018-02-14.