computation of t and AT is done in parseEK1024. func pkeEncrypt1024(cc *[CiphertextSize1024]byte, ex *encryptionKey1024, m *[messageSize]byte, rnd []byte) []byte { var N byte r, e1 := make([]nttElement, k1024), make([]ringElement, k1024) for i := range r { r[i] = ntt(samplePolyCBD(rnd, N)) N++ } for i := range e1 { e1[i] = samplePolyCBD(rnd, N) N++ } e2 := samplePolyCBD(rnd, N) u := make([]ringElement, k1024) // NTT⁻¹(AT ◦ r) + e1 for i := range u { u[i] = e1[i] for j := range r { // Note that i and j are...