Sm4.sm4.t2: def of bend-osdev-legacy-ciphers@0.1.0.0
Import: import bend-osdev-legacy-ciphers@0.1.0.0/sm4.bend as Sm4
Lines 53-56 of bend-osdev-legacy-ciphers@0.1.0.0/sm4.bend: https://jend.leeeet.dev/read.txt?path=bend-osdev-legacy-ciphers@0.1.0.0/sm4.bend&start_line=53&end_line=56

import Base
import bend-osdev-legacy-ciphers@0.1.0.0/legacy_ciphers.bend as L

# T' of the key schedule: L'(B) = B xor B<<<13 xor B<<<23
def sm4.t2(+tab: L.LcTab, x: U32) -> U32:
  +b = sm4.tau(tab, x)
  U32.xor(U32.xor(b, L.lc.rotl(b, 13n)), L.lc.rotl(b, 23n))

Uses (5):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.xor
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-legacy-ciphers@0.1.0.0/legacy_ciphers.bend&name=LcTab
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-legacy-ciphers@0.1.0.0/legacy_ciphers.bend&name=lc.rotl
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-legacy-ciphers@0.1.0.0/sm4.bend&name=sm4.tau