The function below is modeled on Martin Albrecht's discrete-Gaussian sampler included in his dgs library: https://github.com/malb/dgs.

Increase num to the next perfect square.

MaxBytesLength get maximal []byte length in map[int][]byte.

source: https://stackoverflow.com/questions/43495745/how-to-generate-random-date-in-go-lang/43497333 this is probably biased, but we don't care since it is only for tests.

Produce a random integer in Z_p where mod is the value p.

Given a vector index returns the indices for the matrix representation of the vector.

WARNING: DO NOT USE THESE KEYS IN PRODUCTION!.

ServerCertificates holds the certificates for the servers.

We use the AES-CTR to generate pseudo-random numbers using a stream cipher.