// they can't be changed blindly.
	k  = 3
	η  = 2
	du = 10
	dv = 4

	// encodingSizeX is the byte size of a ringElement or nttElement encoded
	// by ByteEncode_X (FIPS 203 (DRAFT), Algorithm 4).
	encodingSize12 = n * log2q / 8
	encodingSize10 = n * du / 8
	encodingSize4  = n * dv / 8
	encodingSize1  = n * 1 / 8

	messageSize       = encodingSize1