package com.cscn;

/**
 * MAC上下文类（JavaCard版，int 拆分为两个 short）
 */
public final class Zuc256MacCtx {
    // LFSR: 原本 int[16]，拆成 hi/lo 各 16 short
    short[] LFSR_hi = JCSystem.makeTransientShortArray((short)16, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
    //todo -> ram
    short[] LFSR_lo = JCSystem.makeTransientShortArray((short)16, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);

    // R1、R2: 原本 int，拆成 hi/lo
    short R1_hi;
    short R1_lo;
    short R2_hi;
    short R2_lo;

    // 缓冲区
    byte[] buf = JCSystem.makeTransientByteArray((short)4, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
    short buflen;

    // T: 原本 int[4]，拆成 hi/lo
    short[] T_hi = JCSystem.makeTransientShortArray((short)4, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
    short[] T_lo = JCSystem.makeTransientShortArray((short)4, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);

    // K0: 原本 int[4]，拆成 hi/lo
    short[] K0_hi = JCSystem.makeTransientShortArray((short)4, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
    short[] K0_lo = JCSystem.makeTransientShortArray((short)4, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);

    // macbits: 原本 int，改成 short 足够
    short macbits;
}