law v_xts_wrap

bend-osdev-gf@0.1.1.0 · LAWS.bend:235

import Base
import bend-osdev-gf@0.1.1.0/gf128.bend as H

235# XTS: the top bit of byte 15 wraps round as 0x87 into byte 0
236law v_xts_wrap:
237  {H.Gf128.double_le(H.Gf128.of_words(0, 0, 0, 255)) == H.Gf128.of_words(2264924160, 0, 0, 254) : H.Gf128}