this post was submitted on 13 Oct 2024
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AES works with a shared key. This won't work when you want to have an encrypted connection with a webshop (how would you get the key over there in a secure way?). For this you have asynchronous key algorithms such as RSA en ECDH. These algorithms can make a secure connection without anything preshared. Usually this is used to compute a shared key and then continue over AES. These asynchronous algorithms are at risk of being cracked with quantum computers.