message SampleCont {
  required Rq a      = 1;
  required Kq b      = 2;
}

message SampleDisc {
  required Rq a      = 1;
  required Rq b      = 2;
}

message SampleRLWR {
  required Rq a      = 1;
  required Rq b      = 2;  // for some modulus p < q
}

// For each of the following, the "xs" array is with respect to the
// decoding basis.

message Rq {
  required uint32 m  = 1;
  required uint64 q  = 2;
  repeated sint64 xs = 3;
}

message Kq {
  required uint32 m  = 1;
  required uint64 q  = 2;
  repeated double xs = 3;
}