def xts.alpha_n
import bend-osdev-cipher-modes@0.1.0.0/xts.bend as Xtsimport Base
import bend-osdev-cipher-modes@0.1.0.0/cipher_modes.bend as M
103# T_0 * alpha^n
104def xts.alpha_n(n: Nat, +t: M.CmBlock) -> M.CmBlock:
105 match n:
106 case 0n:
107 t
108 case 1n+q:
109 xts.alpha_n(q, Xts.mul_alpha(t))