Encryption, Post Quantum Cryptography, Elliptic Curve, Digital Signatures, Kyber.
Let us assume we have a public key which is a matrix A as given below. A = [[3, 1] [4, 2]] Secret vector S which forms the private key is equal to s = [2, 1] An error vector equal to e = [1, -1] Then if we compute c=As+e we get c=[8,9] Now, let’s say an adversary is given the matrix A and the