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调整目录结构

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zcy
2025-09-09 10:36:33 +08:00
parent 2549f565b4
commit 088c0c00f6
772 changed files with 7789 additions and 1 deletions
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1586
build_tools/Project/Src/Method.java Normal file
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99
build_tools/Project/Src/XwSecurity.java Normal file
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package com.cscn;
import javacard.framework.APDU;
import javacard.framework.Applet;
import javacard.framework.ISO7816;
import javacard.framework.ISOException;
import org.globalplatform.GPSystem;
import org.globalplatform.SecureChannel;
/**
* @author liuww
*
*/
public class XwSecurity extends Applet {
//todo test
public static final byte INS_PROCESS_DATA_TEST = (byte)0xE3;
public static final byte INS_LOCATION_ENCRYPT = (byte)0xCA;
public static final byte INS_STORE_KEY = (byte)0xE2;
// public static final byte INS_INITIAL_UPDATE = (byte)0x50;
//
// public static final byte INS_EXTERNAL_AUTH = (byte)0x82;
private Method method;
byte[] key_store_byte;
public XwSecurity(byte[] bArray, short bOffset, byte bLength) {
// TODO Auto-generated constructor stub
method = new Method(); //todo new?
// key store -> flash
key_store_byte = new byte[120];
register(bArray, (short)(bOffset + 1), bArray[bOffset]);
}
public static void install(byte[] bArray, short bOffset, byte bLength)
{
//todo new?
// GP-compliant JavaCard applet registration
new XwSecurity(bArray, bOffset, bLength);
}
public void process(APDU apdu)
{
// Good practice: Return 9000 on SELECT
if(selectingApplet())
{
return;
}
if(method == null) {
return;
}
byte[] buf = apdu.getBuffer();
short off = ISO7816.OFFSET_CDATA;
short len = apdu.setIncomingAndReceive();
switch (buf[ISO7816.OFFSET_INS])
{
// case INS_INITIAL_UPDATE:
// SecureChannel sc = GPSystem.getSecureChannel();
// sc.processSecurity(apdu);
// break;
//
// case INS_EXTERNAL_AUTH:
// sc = GPSystem.getSecureChannel();
// sc.processSecurity(apdu);
// break;
//todo test
case INS_PROCESS_DATA_TEST:
method.testZuc256(apdu);
break;
case INS_LOCATION_ENCRYPT:
len = method.locationEncryptZuc(buf, off, len, key_store_byte);
apdu.setOutgoingAndSend(off, len);
break;
case INS_STORE_KEY:
len = method.updateKey(buf, off, len, key_store_byte);
apdu.setOutgoingAndSend(off, len);
break;
default:
// good practice: If you don't know the INStruction, say so:
ISOException.throwIt(ISO7816.SW_INS_NOT_SUPPORTED);
}
}
}

595
build_tools/Project/Src/Zuc256Core.java Normal file
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//package com.cscn;
//
//
//import javacard.framework.JCSystem;
//
//import static com.cscn.Zuc256Util.L1;
//import static com.cscn.Zuc256Util.L2;
//import static com.cscn.Zuc256Util.add31;
//import static com.cscn.Zuc256Util.add32;
//import static com.cscn.Zuc256Util.add64;
//import static com.cscn.Zuc256Util.and64_7FFFFFFF_to32;
//import static com.cscn.Zuc256Util.create_64b_from_32b;
//import static com.cscn.Zuc256Util.makeU31;
//import static com.cscn.Zuc256Util.makeU32;
//import static com.cscn.Zuc256Util.rot31;
//import static com.cscn.Zuc256Util.shr32u1;
//import static com.cscn.Zuc256Util.shr64u_31;
//import static com.cscn.Zuc256Util.xor32;
//
///**
// * ZUC-256 核心：状态初始化、密钥字生成、密钥流生成。
// */
//public class Zuc256Core {
//
// private Zuc256Core() {}
//
// /** 初始化状态（Key + IV） */
// public static void initState(Zuc256State state, byte[] key32, byte[] iv) {
// zuc256SetMacKey(state, key32, iv, (short)0);
// }
//
// /** 生成单个密钥字 */
// public static void zuc256GenerateKeyword(Zuc256State state, short[] out) {
//// int[] LFSR = state.LFSR;
//// int R1 = state.R1;
//// int R2 = state.R2;
//// int X0, X1, X2, X3;
//// int W1, W2, U, V;
//// int Z;
//
// short[] LFSR_hi = state.LFSR_hi;
// short[] LFSR_lo = state.LFSR_lo;
//
// // 工作寄存器（32位值的临时 out32 缓冲，全用short[2]）[lo, hi]
// short[] X0 = JCSystem.makeTransientShortArray((short)2, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
// short[] X1 = JCSystem.makeTransientShortArray((short)2, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
// short[] X2 = JCSystem.makeTransientShortArray((short)2, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
// short[] X3 = JCSystem.makeTransientShortArray((short)2, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
//
// short[] R1 = JCSystem.makeTransientShortArray((short)2, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
// short[] R2 = JCSystem.makeTransientShortArray((short)2, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
// short[] W1 = JCSystem.makeTransientShortArray((short)2, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
// short[] W2 = JCSystem.makeTransientShortArray((short)2, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
// short[] U = JCSystem.makeTransientShortArray((short)2, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
// short[] V = JCSystem.makeTransientShortArray((short)2, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
// short[] Z = JCSystem.makeTransientShortArray((short)2, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
// short[] TMP0 = JCSystem.makeTransientShortArray((short)2, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
// short[] TMP1 = JCSystem.makeTransientShortArray((short)2, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
// short[] TMP2 = JCSystem.makeTransientShortArray((short)2, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
//
// // 载入 R1,R2
// R1[0] = state.R1_lo;
// R1[1] = state.R1_hi;
// R2[0] = state.R2_lo;
// R2[1] = state.R2_hi;
//
//
// // BitReconstruction4
// short c15 = (short)((LFSR_lo[15] & (short)0x8000) >>> 15); // 左移产生的进位
// X0[1] = (short)(((LFSR_hi[15] & (short)0x7FFF) << 1) | (short)(c15 & 0x0001)); // hi
// X0[0] = LFSR_lo[14]; // lo
//
// // X1 = ((L11 & 0xFFFF) << 16) | (L9 >>> 15)
// X1[1] = LFSR_lo[11];
// X1[0] = (short)((((LFSR_lo[9] & (short)0x8000) >>> 15) & 0X0001) | (LFSR_hi[9] << 1));
//
// // X2 = ((L7 & 0xFFFF) << 16) | (L5 >>> 15)
// X2[1] = LFSR_lo[7];
// X2[0] = (short)((((LFSR_lo[5] & (short)0x8000) >>> 15) & 0X0001) | (LFSR_hi[5] << 1));
//
// // X3 = ((L2 & 0xFFFF) << 16) | (L0 >>> 15)
// X3[1] = LFSR_lo[2];
// X3[0] = (short)((((LFSR_lo[0] & (short)0x8000) >>> 15) & 0X0001) | (LFSR_hi[0] << 1));
//
//
//
// // ---- 输入：X0,X1,X2,X3,R1,R2 均为 short[2]; 输出：Z,W1,W2,U,V ----
//
// // Z = X3 ^ ((X0 ^ R1) + R2)
// xor32(X0[0], X0[1], R1[0], R1[1], TMP0); // TMP0 = X0 ^ R1
// add32(TMP0[0], TMP0[1], R2[0], R2[1], TMP1); // TMP1 = TMP0 + R2
// xor32(X3[0], X3[1], TMP1[0], TMP1[1], Z); // Z = X3 ^ TMP1
//
// // F_(X1, X2)
// // W1 = R1 + X1
// add32(R1[0], R1[1], X1[0], X1[1], W1);
//
// // W2 = R2 ^ X2
// xor32(R2[0], R2[1], X2[0], X2[1], W2);
//
// // U = L1((W1 << 16) | (W2 >>> 16))
// // (W1<<16): lo=0, hi=W1_lo
// // (W2>>>16): lo=W2_hi, hi=0
// // OR 结果： lo=W2_hi, hi=W1_lo
// L1(W2[1], W1[0], U);
//
// // V = L2((W2 << 16) | (W1 >>> 16))
// // (W2<<16): lo=0, hi=W2_lo
// // (W1>>>16): lo=W1_hi, hi=0
// // OR 结果： lo=W1_hi, hi=W2_lo
// L2(W1[1], W2[0], V);
//
//
//// R1 = makeU32(Zuc256Tables.S0[(U >>> 24) & 0xFF],
//// Zuc256Tables.S1[(U >>> 16) & 0xFF],
//// Zuc256Tables.S0[(U >>> 8) & 0xFF],
//// Zuc256Tables.S1[U & 0xFF]);
// makeU32(
// (short)(Zuc256Tables.S0[((U[1] >>> 8) & 0xFF)] & 0xFF), // (U >>> 24) & 0xFF
// (short)(Zuc256Tables.S1[(U[1] & 0xFF)] & 0xFF), // (U >>> 16) & 0xFF
// (short)(Zuc256Tables.S0[((U[0] >>> 8) & 0xFF)] & 0xFF), // (U >>> 8) & 0xFF
// (short)(Zuc256Tables.S1[(U[0] & 0xFF)] & 0xFF), // (U >>> 0) & 0xFF
// R1);
//
//// R2 = makeU32(Zuc256Tables.S0[(V >>> 24) & 0xFF],
//// Zuc256Tables.S1[(V >>> 16) & 0xFF],
//// Zuc256Tables.S0[(V >>> 8) & 0xFF],
//// Zuc256Tables.S1[V & 0xFF]);
// makeU32(
// (short)(Zuc256Tables.S0[((V[1] >>> 8) & 0xFF)] & 0xFF), // (V >>> 24) & 0xFF
// (short)(Zuc256Tables.S1[(V[1] & 0xFF)] & 0xFF), // (V >>> 16) & 0xFF
// (short)(Zuc256Tables.S0[((V[0] >>> 8) & 0xFF)] & 0xFF), // (V >>> 8) & 0xFF
// (short)(Zuc256Tables.S1[(V[0] & 0xFF)] & 0xFF), // (V >>> 0) & 0xFF
// R2);
//
//
//
//// // LFSRWithWorkMode
//// long a = LFSR[0];
//// a += (long)LFSR[0] << 8;
//// a += (long)LFSR[4] << 20;
//// a += (long)LFSR[10] << 21;
//// a += (long)LFSR[13] << 17;
//// a += (long)LFSR[15] << 15;
// // ---- 先准备累加器 A (64位) ----
// short[] A = JCSystem.makeTransientShortArray((short)4, JCSystem.MEMORY_TYPE_TRANSIENT_RESET); // 64位累加器，初始全0
// A[0] = 0; A[1] = 0; A[2] = 0; A[3] = 0;
//
// // 临时缓冲
// short[] tmp32 = JCSystem.makeTransientShortArray((short)2, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);; // 保存一个32位数 (lo,hi)
// short[] tmp64 = JCSystem.makeTransientShortArray((short)4, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);; // 保存移位后的64位数
//
// // a = LFSR[0]
// tmp32[0] = state.LFSR_lo[0];
// tmp32[1] = state.LFSR_hi[0];
// create_64b_from_32b(tmp64, tmp32, (short)0);
// add64(A, tmp64);
//
// // a += (LFSR[0] << 8)
// create_64b_from_32b(tmp64, tmp32, (short)8);
// add64(A, tmp64);
//
// // a += (LFSR[4] << 20)
// tmp32[0] = state.LFSR_lo[4];
// tmp32[1] = state.LFSR_hi[4];
// create_64b_from_32b(tmp64, tmp32, (short)20);
// add64(A, tmp64);
//
// // a += (LFSR[10] << 21)
// tmp32[0] = state.LFSR_lo[10];
// tmp32[1] = state.LFSR_hi[10];
// create_64b_from_32b(tmp64, tmp32, (short)21);
// add64(A, tmp64);
//
// // a += (LFSR[13] << 17)
// tmp32[0] = state.LFSR_lo[13];
// tmp32[1] = state.LFSR_hi[13];
// create_64b_from_32b(tmp64, tmp32, (short)17);
// add64(A, tmp64);
//
// // a += (LFSR[15] << 15)
// tmp32[0] = state.LFSR_lo[15];
// tmp32[1] = state.LFSR_hi[15];
// create_64b_from_32b(tmp64, tmp32, (short)15);
// add64(A, tmp64);
//
//// a = (a & 0x7FFFFFFF) + (a >>> 31);
// // ---- 第一次折叠：a = (a & 0x7FFFFFFF) + (a >>> 31) ----
// short[] low31 = JCSystem.makeTransientShortArray((short)4, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
// short[] r31 = JCSystem.makeTransientShortArray((short)4, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
//
// and64_7FFFFFFF_to32(A, low31); // low31 = A & 0x7FFFFFFF
// shr64u_31(A, r31); // r31 = A >>> 31
//
// A[0]=0; A[1]=0; A[2]=0; A[3]=0;
// add64(A, low31);
// add64(A, r31);
//// int v = (int) ((a & 0x7FFFFFFF) + (a >>> 31));
// // ---- 第二次折叠，得到 v（32位）----
// short[] low31b = JCSystem.makeTransientShortArray((short)4, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
// short[] r31b = JCSystem.makeTransientShortArray((short)4, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
// short[] v64 = JCSystem.makeTransientShortArray((short)4, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
//
// and64_7FFFFFFF_to32(A, low31b);
// shr64u_31(A, r31b);
//
// v64[0]=0; v64[1]=0; v64[2]=0; v64[3]=0;
// add64(v64, low31b);
// add64(v64, r31b);
//
// // v = 32位，取 v64 的低两段
// short v_lo = v64[0];
// short v_hi = (short)(v64[1] & 0x7FFF); // 只保留31位
//
//// System.arraycopy(LFSR, 1, LFSR, 0, 15);
// // LFSR_lo 向左移
// for (short i = 0; i < (short)15; i++) {
// state.LFSR_lo[i] = state.LFSR_lo[(short)(i + 1)];
// }
// // LFSR_hi 向左移
// for (short i = 0; i < (short)15; i++) {
// state.LFSR_hi[i] = state.LFSR_hi[(short)(i + 1)];
// }
//
//// LFSR[15] = v;
// // ---- 写回 LFSR[15] ----
// state.LFSR_lo[15] = v_lo;
// state.LFSR_hi[15] = v_hi;
//
//// state.R1 = R1;
//// state.R2 = R2;
// state.R1_lo = R1[0];
// state.R1_hi = R1[1];
//
// state.R2_lo = R2[0];
// state.R2_hi = R2[1];
//
//
//// return Z;
// out[0] = Z[0];
// out[1] = Z[1];
//
// }
//
// // 生成指定长度的密钥流
// public static void zuc256GenerateKeystream(Zuc256State state,
// short nwords,
// short[] keystream_hi,
// short[] keystream_lo) {
// // 临时存放一个 32 位关键字
// short[] tmp = JCSystem.makeTransientShortArray((short)2, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
// for (short i = 0; i < nwords; i++) {
// // 生成一个关键字 -> tmp[0]=lo, tmp[1]=hi
// zuc256GenerateKeyword(state, tmp);
// // 存入输出数组
// keystream_lo[i] = tmp[0];
// keystream_hi[i] = tmp[1];
// }
// }
//
//
//
//
// // 初始化MAC密钥
// private static void zuc256SetMacKey(Zuc256State state, byte[] K, byte[] IV, short macbits) {
// short[] D = JCSystem.makeTransientShortArray(Zuc256Tables.D_COLS, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
// short[] TMP = JCSystem.makeTransientShortArray((short)2, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
// short[] X0 = JCSystem.makeTransientShortArray((short)2, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
// short[] X1 = JCSystem.makeTransientShortArray((short)2, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
// short[] X2 = JCSystem.makeTransientShortArray((short)2, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
// short[] R1 = JCSystem.makeTransientShortArray((short)2, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
// short[] R2 = JCSystem.makeTransientShortArray((short)2, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
// short[] W = JCSystem.makeTransientShortArray((short)2, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
// short[] W1 = JCSystem.makeTransientShortArray((short)2, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
// short[] W2 = JCSystem.makeTransientShortArray((short)2, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
// short[] U = JCSystem.makeTransientShortArray((short)2, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
// short[] V = JCSystem.makeTransientShortArray((short)2, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
// short[] T = JCSystem.makeTransientShortArray((short)2, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
// short[] T2 = JCSystem.makeTransientShortArray((short)2, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
//
//
//// int IV17 = (IV[17] & 0xFF) >> 2;
//// int IV18 = ((IV[17] & 0x03) << 4) | ((IV[18] & 0xFF) >> 4);
//// int IV19 = ((IV[18] & 0x0F) << 2) | ((IV[19] & 0xFF) >> 6);
//// int IV20 = IV[19] & 0x3F;
//// int IV21 = (IV[20] & 0xFF) >> 2;
//// int IV22 = ((IV[20] & 0x03) << 4) | ((IV[21] & 0xFF) >> 4);
//// int IV23 = ((IV[21] & 0x0F) << 2) | ((IV[22] & 0xFF) >> 6);
//// int IV24 = IV[22] & 0x3F;
// // IV 拆分
// short IV17 = (short)((IV[17] & 0xFF) >>> 2);
// short IV18 = (short)(((IV[17] & 0x03) << 4) | ((IV[18] & 0xFF) >>> 4));
// short IV19 = (short)(((IV[18] & 0x0F) << 2) | ((IV[19] & 0xFF) >>> 6));
// short IV20 = (short)(IV[19] & 0x3F);
// short IV21 = (short)((IV[20] & 0xFF) >>> 2);
// short IV22 = (short)(((IV[20] & 0x03) << 4) | ((IV[21] & 0xFF) >>> 4));
// short IV23 = (short)(((IV[21] & 0x0F) << 2) | ((IV[22] & 0xFF) >>> 6));
// short IV24 = (short)(IV[22] & 0x3F);
//
//// D = (macbits / 32 < 3) ? Zuc256Tables.ZUC256_D[macbits / 32] : Zuc256Tables.ZUC256_D[3];
// short row = (short)((macbits / 32) < 3 ? (macbits / 32) : 3);
// Zuc256Tables.getDRow(row, D, (short)0);
// Zuc256Tables.getDRow(row, D, (short)0);
//
//
// short[] tmp = JCSystem.makeTransientShortArray((short)2, JCSystem.MEMORY_TYPE_TRANSIENT_RESET); // 临时存储 makeU31 输出 (lo,hi)
//
// // 逐项装载 LFSR
//// LFSR[0] = makeU31(K[0] & 0xFF, D[0], K[21] & 0xFF, K[16] & 0xFF);
// makeU31((short)(K[0] & 0xFF), (short)D[0], (short)(K[21] & 0xFF), (short)(K[16] & 0xFF), tmp);
// state.LFSR_lo[0] = tmp[0]; state.LFSR_hi[0] = tmp[1];
//
//// LFSR[1] = makeU31(K[1] & 0xFF, D[1], K[22] & 0xFF, K[17] & 0xFF);
// makeU31((short)(K[1] & 0xFF), (short)D[1], (short)(K[22] & 0xFF), (short)(K[17] & 0xFF), tmp);
// state.LFSR_lo[1] = tmp[0]; state.LFSR_hi[1] = tmp[1];
//
//// LFSR[2] = makeU31(K[2] & 0xFF, D[2], K[23] & 0xFF, K[18] & 0xFF);
// makeU31((short)(K[2] & 0xFF), (short)D[2], (short)(K[23] & 0xFF), (short)(K[18] & 0xFF), tmp);
// state.LFSR_lo[2] = tmp[0]; state.LFSR_hi[2] = tmp[1];
//
//// LFSR[3] = makeU31(K[3] & 0xFF, D[3], K[24] & 0xFF, K[19] & 0xFF);
// makeU31((short)(K[3] & 0xFF), (short)D[3], (short)(K[24] & 0xFF), (short)(K[19] & 0xFF), tmp);
// state.LFSR_lo[3] = tmp[0]; state.LFSR_hi[3] = tmp[1];
//
//// LFSR[4] = makeU31(K[4] & 0xFF, D[4], K[25] & 0xFF, K[20] & 0xFF);
// makeU31((short)(K[4] & 0xFF), (short)D[4], (short)(K[25] & 0xFF), (short)(K[20] & 0xFF), tmp);
// state.LFSR_lo[4] = tmp[0]; state.LFSR_hi[4] = tmp[1];
//
//// LFSR[5] = makeU31(IV[0] & 0xFF, (D[5] | IV17), K[5] & 0xFF, K[26] & 0xFF);
// makeU31((short)(IV[0] & 0xFF), (short)(D[5] | IV17), (short)(K[5] & 0xFF), (short)(K[26] & 0xFF), tmp);
// state.LFSR_lo[5] = tmp[0]; state.LFSR_hi[5] = tmp[1];
//
//// LFSR[6] = makeU31(IV[1] & 0xFF, (D[6] | IV18), K[6] & 0xFF, K[27] & 0xFF);
// makeU31((short)(IV[1] & 0xFF), (short)(D[6] | IV18), (short)(K[6] & 0xFF), (short)(K[27] & 0xFF), tmp);
// state.LFSR_lo[6] = tmp[0]; state.LFSR_hi[6] = tmp[1];
//
//// LFSR[7] = makeU31(IV[10] & 0xFF, (D[7] | IV19), K[7] & 0xFF, IV[2] & 0xFF);
// makeU31((short)(IV[10] & 0xFF), (short)(D[7] | IV19), (short)(K[7] & 0xFF), (short)(IV[2] & 0xFF), tmp);
// state.LFSR_lo[7] = tmp[0]; state.LFSR_hi[7] = tmp[1];
//
//// LFSR[8] = makeU31(K[8] & 0xFF, (D[8] | IV20), IV[3] & 0xFF, IV[11] & 0xFF);
// makeU31((short)(K[8] & 0xFF), (short)(D[8] | IV20), (short)(IV[3] & 0xFF), (short)(IV[11] & 0xFF), tmp);
// state.LFSR_lo[8] = tmp[0]; state.LFSR_hi[8] = tmp[1];
//
//// LFSR[9] = makeU31(K[9] & 0xFF, (D[9] | IV21), IV[12] & 0xFF, IV[4] & 0xFF);
// makeU31((short)(K[9] & 0xFF), (short)(D[9] | IV21), (short)(IV[12] & 0xFF), (short)(IV[4] & 0xFF), tmp);
// state.LFSR_lo[9] = tmp[0]; state.LFSR_hi[9] = tmp[1];
//
//// LFSR[10] = makeU31(IV[5] & 0xFF, (D[10] | IV22), K[10] & 0xFF, K[28] & 0xFF);
// makeU31((short)(IV[5] & 0xFF), (short)(D[10] | IV22), (short)(K[10] & 0xFF), (short)(K[28] & 0xFF), tmp);
// state.LFSR_lo[10] = tmp[0]; state.LFSR_hi[10] = tmp[1];
//
//// LFSR[11] = makeU31(K[11] & 0xFF, (D[11] | IV23), IV[6] & 0xFF, IV[13] & 0xFF);
// makeU31((short)(K[11] & 0xFF), (short)(D[11] | IV23), (short)(IV[6] & 0xFF), (short)(IV[13] & 0xFF), tmp);
// state.LFSR_lo[11] = tmp[0]; state.LFSR_hi[11] = tmp[1];
//
//// LFSR[12] = makeU31(K[12] & 0xFF, (D[12] | IV24), IV[7] & 0xFF, IV[14] & 0xFF);
// makeU31((short)(K[12] & 0xFF), (short)(D[12] | IV24), (short)(IV[7] & 0xFF), (short)(IV[14] & 0xFF), tmp);
// state.LFSR_lo[12] = tmp[0]; state.LFSR_hi[12] = tmp[1];
//
//// LFSR[13] = makeU31(K[13] & 0xFF, D[13], IV[15] & 0xFF, IV[8] & 0xFF);
// makeU31((short)(K[13] & 0xFF), (short)D[13], (short)(IV[15] & 0xFF), (short)(IV[8] & 0xFF), tmp);
// state.LFSR_lo[13] = tmp[0]; state.LFSR_hi[13] = tmp[1];
//
//// LFSR[14] = makeU31(K[14] & 0xFF, (D[14] | (K[31] >>> 4)), IV[16] & 0xFF, IV[9] & 0xFF);
// makeU31((short)(K[14] & 0xFF), (short)(D[14] | ((K[31] & 0xFF) >>> 4)), (short)(IV[16] & 0xFF), (short)(IV[9] & 0xFF), tmp);
// state.LFSR_lo[14] = tmp[0]; state.LFSR_hi[14] = tmp[1];
//
//// LFSR[15] = makeU31(K[15] & 0xFF, (D[15] | (K[31] & 0x0F)), K[30] & 0xFF, K[29] & 0xFF);
// makeU31((short)(K[15] & 0xFF), (short)(D[15] | (K[31] & 0x0F)), (short)(K[30] & 0xFF), (short)(K[29] & 0xFF), tmp);
// state.LFSR_lo[15] = tmp[0]; state.LFSR_hi[15] = tmp[1];
//
//
// short c15_2 = 0;
// for (short i = 0; i < 32; i++) {
// // BitReconstruction3
//// X0 = ((LFSR[15] & 0x7FFF8000) << 1) | (LFSR[14] & 0xFFFF);
// // X0 = ((L15 & 0x7FFF8000)<<1) | (L14 & 0xFFFF)
// c15_2 = (short)((state.LFSR_lo[15] & (short)0x8000) >>> 15);
// X0[1] = (short)(((state.LFSR_hi[15] & (short)0x7FFF) << 1) | (short)(c15_2 & 0x0001));
// X0[0] = state.LFSR_lo[14];
//
//// X1 = ((LFSR[11] & 0xFFFF) << 16) | (LFSR[9] >>> 15);
// // X1 = ((L11 & 0xFFFF)<<16) | (L9>>>15)
// X1[1] = state.LFSR_lo[11];
// X1[0] = (short)((((state.LFSR_lo[9] & (short)0x8000) >>> 15) & 0X0001) | (state.LFSR_hi[9] << 1));
//
//// X2 = ((LFSR[7] & 0xFFFF) << 16) | (LFSR[5] >>> 15);
// // X2 = ((L7 & 0xFFFF)<<16) | (L5>>>15)
// X2[1] = state.LFSR_lo[7];
// X2[0] = (short)((((state.LFSR_lo[5] & (short)0x8000) >>> 15) & 0X0001) | (state.LFSR_hi[5] << 1));
//
//
//
// // F(X0, X1, X2)
// // W = (X0 ^ R1) + R2
// xor32(X0[0], X0[1], R1[0], R1[1], TMP);
// add32(TMP[0], TMP[1], R2[0], R2[1], W);
//
// // W1 = R1 + X1
// add32(R1[0], R1[1], X1[0], X1[1], W1);
//
// // W2 = R2 ^ X2
// xor32(R2[0], R2[1], X2[0], X2[1], W2);
//
// // U = L1((W1<<16) | (W2>>>16))
// L1(W2[1], W1[0], U);
//
// // V = L2((W2<<16) | (W1>>>16))
// L2(W1[1], W2[0], V);
//
//// R1 = makeU32(Zuc256Tables.S0[(U >>> 24) & 0xFF],
//// Zuc256Tables.S1[(U >>> 16) & 0xFF],
//// Zuc256Tables.S0[(U >>> 8) & 0xFF],
//// Zuc256Tables.S1[U & 0xFF]);
////
//// R2 = makeU32(Zuc256Tables.S0[(V >>> 24) & 0xFF],
//// Zuc256Tables.S1[(V >>> 16) & 0xFF],
//// Zuc256Tables.S0[(V >>> 8) & 0xFF],
//// Zuc256Tables.S1[V & 0xFF]);
// // 更新 R1,R2
// makeU32(
// (short)(Zuc256Tables.S0[((U[1] >>> 8) & 0xFF)] & 0xFF),
// (short)(Zuc256Tables.S1[(U[1] & 0xFF)] & 0xFF),
// (short)(Zuc256Tables.S0[((U[0] >>> 8) & 0xFF)] & 0xFF),
// (short)(Zuc256Tables.S1[(U[0] & 0xFF)] & 0xFF),
// R1);
//
// makeU32(
// (short)(Zuc256Tables.S0[((V[1] >>> 8) & 0xFF)] & 0xFF),
// (short)(Zuc256Tables.S1[(V[1] & 0xFF)] & 0xFF),
// (short)(Zuc256Tables.S0[((V[0] >>> 8) & 0xFF)] & 0xFF),
// (short)(Zuc256Tables.S1[(V[0] & 0xFF)] & 0xFF),
// R2);
//
// // LFSRWithInitialisationMode(W >> 1)
//// int v = LFSR[0];
// V[0] = state.LFSR_lo[0];
// V[1] = state.LFSR_hi[0];
//
// // v = add31(v, rot31(state.LFSR[0], 8))
// rot31(state.LFSR_lo[0], state.LFSR_hi[0], (short)8, T);
// add31(V[0], V[1], T[0], T[1], V);
//
//// v = add31(v, rot31(state.LFSR[4], 20));
// rot31(state.LFSR_lo[4], state.LFSR_hi[4], (short)20, T);
// add31(V[0], V[1], T[0], T[1], V);
//
//// v = add31(v, rot31(state.LFSR[10], 21));
// rot31(state.LFSR_lo[10], state.LFSR_hi[10], (short)21, T);
// add31(V[0], V[1], T[0], T[1], V);
//
//// v = add31(v, rot31(state.LFSR[13], 17));
// rot31(state.LFSR_lo[13], state.LFSR_hi[13], (short)17, T);
// add31(V[0], V[1], T[0], T[1], V);
//
//// v = add31(v, rot31(state.LFSR[15], 15));
// rot31(state.LFSR_lo[15], state.LFSR_hi[15], (short)15, T);
// add31(V[0], V[1], T[0], T[1], V);
//
//// v = add31(v, W >>> 1);
// shr32u1(W[0], W[1], T2); // T2[0]=lo, T2[1]=hi（无符号>>>1）
// T2[1] = (short)(T2[1] & (short)0xFFFF); // 只保留31位
// add31(V[0], V[1], T2[0], T2[1], V);
//
// // System.arraycopy(state.LFSR, 1, state.LFSR, 0, 15)
//// 相当于 System.arraycopy(state.LFSR_lo, 1, state.LFSR_lo, 0, 15);
// for (short j = 0; j < (short)15; j++) {
// state.LFSR_lo[j] = state.LFSR_lo[(short)(j + 1)];
// }
//// 相当于 System.arraycopy(state.LFSR_hi, 1, state.LFSR_hi, 0, 15);
// for (short j = 0; j < (short)15; j++) {
// state.LFSR_hi[j] = state.LFSR_hi[(short)(j + 1)];
// }
//
//// state.LFSR[15] = v;
// state.LFSR_lo[15] = V[0];
// state.LFSR_hi[15] = (short)(V[1] & 0x7FFF);
// }
//
// // BitReconstruction2
//// X1 = ((LFSR[11] & 0xFFFF) << 16) | (LFSR[9] >>> 15);
// X1[1] = state.LFSR_lo[11];
// X1[0] = (short)((((state.LFSR_lo[9] & (short)0x8000) >>> 15) & 0X0001) | (state.LFSR_hi[9] << 1));
//
//// X2 = ((LFSR[7] & 0xFFFF) << 16) | (LFSR[5] >>> 15);
// X2[1] = state.LFSR_lo[7];
// X2[0] = (short)((((state.LFSR_lo[5] & (short)0x8000) >>> 15) & 0X0001) | (state.LFSR_hi[5] << 1));
//
// // F_(X1, X2)
//// W1 = R1 + X1;
// add32(R1[0], R1[1], X1[0], X1[1], W1); // W1 = R1 + X1
//// W2 = R2 ^ X2;
// xor32(R2[0], R2[1], X2[0], X2[1], W2); // W2 = R2 ^ X2
//
//// U = L1((W1 << 16) | (W2 >>> 16));
// // U = L1((W1<<16)|(W2>>>16)) → lo=W2_hi, hi=W1_lo
// L1(W2[1], W1[0], U);
//
//// V = L2((W2 << 16) | (W1 >>> 16));
// // V = L2((W2<<16)|(W1>>>16)) → lo=W1_hi, hi=W2_lo
// L2(W1[1], W2[0], V);
//
//// R1 = makeU32(Zuc256Tables.S0[(U >>> 24) & 0xFF],
//// Zuc256Tables.S1[(U >>> 16) & 0xFF],
//// Zuc256Tables.S0[(U >>> 8) & 0xFF],
//// Zuc256Tables.S1[U & 0xFF]);
// makeU32(
// (short)(Zuc256Tables.S0[((U[1] >>> 8) & 0xFF)] & 0xFF),
// (short)(Zuc256Tables.S1[(U[1] & 0xFF)] & 0xFF),
// (short)(Zuc256Tables.S0[((U[0] >>> 8) & 0xFF)] & 0xFF),
// (short)(Zuc256Tables.S1[(U[0] & 0xFF)] & 0xFF),
// R1);
//
//// R2 = makeU32(Zuc256Tables.S0[(V >>> 24) & 0xFF],
//// Zuc256Tables.S1[(V >>> 16) & 0xFF],
//// Zuc256Tables.S0[(V >>> 8) & 0xFF],
//// Zuc256Tables.S1[V & 0xFF]);
// makeU32(
// (short)(Zuc256Tables.S0[((V[1] >>> 8) & 0xFF)] & 0xFF),
// (short)(Zuc256Tables.S1[(V[1] & 0xFF)] & 0xFF),
// (short)(Zuc256Tables.S0[((V[0] >>> 8) & 0xFF)] & 0xFF),
// (short)(Zuc256Tables.S1[(V[0] & 0xFF)] & 0xFF),
// R2);
//
// // ---- LFSRWithWorkMode ----
// short[] A = JCSystem.makeTransientShortArray((short)4, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);; // 64位累加器
// short[] tmp32 = JCSystem.makeTransientShortArray((short)2, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);;
// short[] tmp64 = JCSystem.makeTransientShortArray((short)4, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);;
//
// // LFSRWithWorkMode
//// long a = LFSR[0];
// tmp32[0] = state.LFSR_lo[0];
// tmp32[1] = state.LFSR_hi[0];
// create_64b_from_32b(tmp64, tmp32, (short)0); add64(A, tmp64);
//
//// a += (long)LFSR[0] << 8;
// create_64b_from_32b(tmp64, tmp32, (short)8); add64(A, tmp64);
//
//// a += (long)LFSR[4] << 20;
// tmp32[0] = state.LFSR_lo[4]; tmp32[1] = state.LFSR_hi[4];
// create_64b_from_32b(tmp64, tmp32, (short)20); add64(A, tmp64);
//
//// a += (long)LFSR[10] << 21;
// tmp32[0] = state.LFSR_lo[10]; tmp32[1] = state.LFSR_hi[10];
// create_64b_from_32b(tmp64, tmp32, (short)21); add64(A, tmp64);
//
//// a += (long)LFSR[13] << 17;
// tmp32[0] = state.LFSR_lo[13]; tmp32[1] = state.LFSR_hi[13];
// create_64b_from_32b(tmp64, tmp32, (short)17); add64(A, tmp64);
//
//// a += (long)LFSR[15] << 15;
// tmp32[0] = state.LFSR_lo[15]; tmp32[1] = state.LFSR_hi[15];
// create_64b_from_32b(tmp64, tmp32, (short)15); add64(A, tmp64);
//
//// a = (a & 0x7FFFFFFF) + (a >>> 31);
// short[] low31 = JCSystem.makeTransientShortArray((short)4, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);;
// short[] r31 = JCSystem.makeTransientShortArray((short)4, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);;
// and64_7FFFFFFF_to32(A, low31);
// shr64u_31(A, r31);
//
// short[] v64 = JCSystem.makeTransientShortArray((short)4, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);;
// add64(v64, low31);
// add64(v64, r31);
//
//// int v = (int) ((a & 0x7FFFFFFF) + (a >>> 31));
// and64_7FFFFFFF_to32(v64, low31);
// shr64u_31(v64, r31);
// short[] vv = JCSystem.makeTransientShortArray((short)4, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);;
// add64(vv, low31);
// add64(vv, r31);
//
// short v_lo = vv[0];
// short v_hi = (short)(vv[1] & 0x7FFF);
//
//// LFSR左移
//// System.arraycopy(LFSR, 1, LFSR, 0, 15);
// // LFSR_lo 向左移
// for (short i = 0; i < (short)15; i++) {
// state.LFSR_lo[i] = state.LFSR_lo[(short)(i + 1)];
// }
// // LFSR_hi 向左移
// for (short i = 0; i < (short)15; i++) {
// state.LFSR_hi[i] = state.LFSR_hi[(short)(i + 1)];
// }
//
//// LFSR[15] = v;
// state.LFSR_lo[15] = v_lo;
// state.LFSR_hi[15] = v_hi;
//
// state.R1_lo = R1[0]; state.R1_hi = R1[1];
// state.R2_lo = R2[0]; state.R2_hi = R2[1];
// }
//}
//

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//package com.cscn;
//
///**
// * 演示主函数
// */
//public final class Zuc256Demo {
//
// public static void main(String[] args) {
// // 1. 明文
// byte[] plaintext = "ZUC256对称加解密测试:1234567890".getBytes();
// int plaintextLen = plaintext.length;
// System.out.println("明文: " + new String(plaintext));
// printHex("明文(十六进制)", plaintext, plaintextLen);
//
// // 2. 密钥(32字节ASCII)
// byte[] key = "0123456789abcdef0123456789abcdef".getBytes();
// printHex("密钥", key, 32);
//
// // 3. 初始向量(25字节ASCII)
// byte[] inputIv25Byte = "0123456789abcdefg01234567".getBytes();
// byte[] iv = new byte[23];
// extractIv(inputIv25Byte, iv);
// printHex("提取后的IV", iv, 23);
//
// // 4. 分配加密/解密缓冲区
// byte[] ciphertext = new byte[plaintextLen];
// byte[] decryptedtext = new byte[plaintextLen];
//
// // 5. 加密
// Zuc256State stateEnc = new Zuc256State();
// Zuc256Core.initState(stateEnc, key, iv);
// zuc256Crypt(stateEnc, plaintext, plaintextLen, ciphertext);
// printHex("密文", ciphertext, plaintextLen);
//
// // 6. 解密(重新初始化状态)
// Zuc256State stateDec = new Zuc256State();
// Zuc256Core.initState(stateDec, key, iv);
// zuc256Crypt(stateDec, ciphertext, plaintextLen, decryptedtext);
// printHex("解密后", decryptedtext, plaintextLen);
// System.out.println("解密文本: " + new String(decryptedtext));
//
// // 7. 验证结果
// if (Arrays.equals(plaintext, decryptedtext)) {
// System.out.println("=== 测试成功: 解密结果与明文一致 ===");
// } else {
// System.out.println("=== 测试失败: 解密结果与明文不一致 ===");
// }
// }
//
// // 一次性加密
// public static void zuc256Crypt(Zuc256State state, byte[] in, int inlen, byte[] out) {
// if (state == null || in == null || out == null) return;
//
// Zuc256EncryptCtx ctx = new Zuc256EncryptCtx(state);
//
// // 执行加解密
// ctx.update(in, inlen, out);
// int remainingOffset = (inlen / 4) * 4;
// byte[] finishOut = new byte[out.length - remainingOffset];
// if (finishOut.length > 0) {
// System.arraycopy(out, remainingOffset, finishOut, 0, finishOut.length);
// }
// ctx.finish(finishOut);
// System.arraycopy(finishOut, 0, out, remainingOffset, finishOut.length);
// }
//}

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//package com.cscn;
//
//import javacard.framework.JCSystem;
//import javacard.framework.Util;
//
//import static com.cscn.Zuc256Core.zuc256GenerateKeystream;
//import static com.cscn.Zuc256Core.zuc256GenerateKeyword;
//import static com.cscn.Zuc256Util.getU32;
//import static com.cscn.Zuc256Util.putU32;
//import static com.cscn.Zuc256Util.xor32;
//
//
///**
// * 加密上下文类
// */
//public final class Zuc256EncryptCtx {
// Zuc256State state;
// byte[] buf;
// short buflen;
//
// public Zuc256EncryptCtx(Zuc256State state, byte[] buf){
// this.state = state;
// this.buf = buf;
// }
//
// public Zuc256EncryptCtx(Zuc256State state){
// this.state = state;
// this.buf = JCSystem.makeTransientByteArray((short)4, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
// }
//
// public Zuc256EncryptCtx(){
// this.state = new Zuc256State(); //todo how to put in ram?
// this.buf = JCSystem.makeTransientByteArray((short)4, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
// }
//
// // 初始化加密上下文
// public void initZuc256EncryptCtx(byte[] key32, byte[] iv) {
//// Arrays.fill(this.buf, (byte) 0);
// for (short i = 0; i < (short)this.buf.length; i++) {
// this.buf[i] = (byte)0;
// }
// this.buflen = 0;
// Zuc256Core.initState(this.state, key32, iv);
// }
//
// // 分阶段处理加密数据
// public void updateZuc256EncryptCtx(byte[] in, short inlen, byte[] out) {
// if (in == null || out == null || inlen == 0) return;
//
// short inPos = 0; // 输入偏移
// short outPos = 0; // 输出偏移
//
// // 处理缓冲区中剩余的非4字节数据
// if (this.buflen > 0) {
//// int need = 4 - this.buflen;
// short need = (short)(4 - this.buflen);
//// int copy = Math.min(inlen, need);
// short copy = (short)((inlen < need) ? inlen : need);
//
// // 替代 System.arraycopy(in, 0, this.buf, this.buflen, copy);
// Util.arrayCopyNonAtomic(in, (short)0, this.buf, this.buflen, copy);
//
// this.buflen += copy;
//
// // 调整输入指针和长度
//// byte[] newIn = new byte[inlen - copy];
//// if (inlen - copy > 0) {
//// System.arraycopy(in, copy, newIn, 0, inlen - copy);
//// }
//// in = newIn;
//// inlen -= copy;
// // 推进输入指针与剩余长度
// inPos += copy;
// inlen -= copy;
//
// // 缓冲区已满，处理一个完整的4字节块
// if (this.buflen == 4) {
//// int keystream = zuc256GenerateKeyword(this.state);
// short[] ks = JCSystem.makeTransientShortArray((short)2, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
// zuc256GenerateKeyword(this.state, ks); // ks[0]=lo, ks[1]=hi
//
//// int plain = getU32(this.buf, 0);
// // 取出 4 字节明文 → plain[0]=lo, plain[1]=hi
// short[] plain = JCSystem.makeTransientShortArray((short)2, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
// getU32(this.buf, (short)0, plain);
//
//// putU32(out, 0, plain ^ keystream);
// // plain ^ ks → res
// short[] res = JCSystem.makeTransientShortArray((short)2, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
// xor32(plain[0], plain[1], ks[0], ks[1], res);
// // 写回 out 的前4字节
// putU32(out, (short)0, res[0], res[1]);
//
// this.buflen = 0;
//// Arrays.fill(this.buf, (byte) 0);
// for (short i = 0; i < (short)this.buf.length; i++) {
// this.buf[i] = (byte)0;
// }
//
// // 调整输出指针
//// byte[] newOut = new byte[out.length - 4];
//// if (out.length - 4 > 0) {
//// System.arraycopy(out, 4, newOut, 0, out.length - 4);
//// }
//// out = newOut;
// // 这里C实现就是直接指针+4的。JavaSE实现搞这个new干嘛。。
// outPos += 4;
// }
// }
//
// // 处理完整的4字节块
//// int fullBlocks = inlen / 4;
// short fullBlocks = (short) (inlen / 4);
// if (fullBlocks > 0) {
//// int[] keystream = new int[fullBlocks];
// short[] ks_hi = JCSystem.makeTransientShortArray(fullBlocks, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
// short[] ks_lo = JCSystem.makeTransientShortArray(fullBlocks, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
//
//// zuc256GenerateKeystream(this.state, fullBlocks, keystream);
// zuc256GenerateKeystream(this.state, fullBlocks, ks_hi, ks_lo);
//
// // 临时：装一个32位字
// short[] word = JCSystem.makeTransientShortArray((short)2, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
//
// // 逐块异或加密
// for (short i = 0; i < fullBlocks; i++) {
//// int plain = getU32(in, i * 4);
// short off = (short) (i << 2); // i*4
// // 读明文
// getU32(in, (short)(inPos+off), word); // word[0]=lo, word[1]=hi
//
//// putU32(out, i * 4, plain ^ keystream[i]);
// // XOR keystream
// word[0] = (short)(word[0] ^ ks_lo[i]);
// word[1] = (short)(word[1] ^ ks_hi[i]);
// // 写密文
// putU32(out, (short) (outPos+off), word[0], word[1]);
// }
//
// // 调整输入指针和长度
//// int processed = fullBlocks * 4;
// short processed = (short)(fullBlocks * 4);
//
//// byte[] newIn = new byte[inlen - processed];
//// if (inlen - processed > 0) {
//// System.arraycopy(in, processed, newIn, 0, inlen - processed);
//// }
//// in = newIn;
//// inlen -= processed;
// // 推进输入/输出指针与剩余长度
// inPos += processed;
// inlen -= processed;
// outPos += processed;
// }
//
// // 缓存剩余不足4字节的数据
// if (inlen > 0) {
// // 等价于 System.arraycopy(in, 0, this.buf, 0, inlen);
// Util.arrayCopyNonAtomic(in, (short)inPos, this.buf, (short)0, inlen);
//
// this.buflen = inlen;
// }
// }
//
// // 完成加密处理
// public void finishZuc256EncryptCtx(byte[] out) {
// if (out == null) return;
//
// // 处理缓冲区中剩余的不足4字节数据
// if (this.buflen > 0) {
//// int keystream = zuc256GenerateKeyword(this.state);
// // 生成一个 32-bit 密钥字：ks[0]=lo16, ks[1]=hi16
// short[] ks = JCSystem.makeTransientShortArray((short)2, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
// zuc256GenerateKeyword(this.state, ks);
//
//// byte[] keystreamBytes = new byte[4];
//// putU32(keystreamBytes, 0, keystream);
// byte[] keystreamBytes = JCSystem.makeTransientByteArray((short)4, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
// putU32(keystreamBytes, (short)0, ks[0], ks[1]);
//
// // 逐字节异或
// short outOffset = (short)(out.length - this.buflen);
// for (short i = 0; i < this.buflen; i++) {
// out[(short)(i+outOffset)] = (byte) (this.buf[i] ^ keystreamBytes[i]);
// }
// }
//
//
//
// // 清理上下文
//// Arrays.fill(this.buf, (byte) 0);
// for(short i=0; i<4; i++) {
// this.buf[i] = (byte)0;
// }
//
// this.buflen = 0;
//
//// Arrays.fill(this.state.LFSR, 0);
// // LFSR 全部清零（高低位数组各 16 个元素）
// for (short i = 0; i < 16; i++) {
// this.state.LFSR_lo[i] = 0;
// this.state.LFSR_hi[i] = 0;
// }
//
//
//// this.state.R1 = 0;
//// this.state.R2 = 0;
//// R1、R2 清零
// this.state.R1_lo = 0;
// this.state.R1_hi = 0;
// this.state.R2_lo = 0;
// this.state.R2_hi = 0;
// }
//}

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//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;
//}

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//package com.cscn;
//
///**
// * ZUC状态类（JavaCard版，int 拆为 hi/lo short）
// */
//public class Zuc256State {
// // LFSR: 原 int[16] -> hi/lo 各 16
// public short[] LFSR_hi;
// public short[] LFSR_lo;
//
// // R1, R2: 原 int -> hi/lo
// public short R1_hi;
// public short R1_lo;
// public short R2_hi;
// public short R2_lo;
//
// public Zuc256State() {
// this.LFSR_hi = JCSystem.makeTransientShortArray((short)16, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
// this.LFSR_lo = JCSystem.makeTransientShortArray((short)16, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
// }
// public Zuc256State(short[] LSFR_HIGH, short[] LSFR_LOW) {
// this.LFSR_hi = LSFR_HIGH;
// this.LFSR_lo = LSFR_LOW;
// }
//}

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package com.cscn;
/**
* 常量表：S0/S1 与 ZUC256_D。
* 注意：JavaCard 目标环境建议将表定义为 static final 数组，按 int/short 存放。
* 适配说明：已将 32bit int 数组改为 16bit short 数组，符合JavaCard 16bit能力要求
*/
public final class Zuc256Tables {
// 私有构造函数：防止类被实例化
private Zuc256Tables() {}
// S盒：S0, S1
public static final short[] S0 = {
0x3e,0x72,0x5b,0x47,0xca,0xe0,0x00,0x33,0x04,0xd1,0x54,0x98,0x09,0xb9,0x6d,0xcb,
0x7b,0x1b,0xf9,0x32,0xaf,0x9d,0x6a,0xa5,0xb8,0x2d,0xfc,0x1d,0x08,0x53,0x03,0x90,
0x4d,0x4e,0x84,0x99,0xe4,0xce,0xd9,0x91,0xdd,0xb6,0x85,0x48,0x8b,0x29,0x6e,0xac,
0xcd,0xc1,0xf8,0x1e,0x73,0x43,0x69,0xc6,0xb5,0xbd,0xfd,0x39,0x63,0x20,0xd4,0x38,
0x76,0x7d,0xb2,0xa7,0xcf,0xed,0x57,0xc5,0xf3,0x2c,0xbb,0x14,0x21,0x06,0x55,0x9b,
0xe3,0xef,0x5e,0x31,0x4f,0x7f,0x5a,0xa4,0x0d,0x82,0x51,0x49,0x5f,0xba,0x58,0x1c,
0x4a,0x16,0xd5,0x17,0xa8,0x92,0x24,0x1f,0x8c,0xff,0xd8,0xae,0x2e,0x01,0xd3,0xad,
0x3b,0x4b,0xda,0x46,0xeb,0xc9,0xde,0x9a,0x8f,0x87,0xd7,0x3a,0x80,0x6f,0x2f,0xc8,
0xb1,0xb4,0x37,0xf7,0x0a,0x22,0x13,0x28,0x7c,0xcc,0x3c,0x89,0xc7,0xc3,0x96,0x56,
0x07,0xbf,0x7e,0xf0,0x0b,0x2b,0x97,0x52,0x35,0x41,0x79,0x61,0xa6,0x4c,0x10,0xfe,
0xbc,0x26,0x95,0x88,0x8a,0xb0,0xa3,0xfb,0xc0,0x18,0x94,0xf2,0xe1,0xe5,0xe9,0x5d,
0xd0,0xdc,0x11,0x66,0x64,0x5c,0xec,0x59,0x42,0x75,0x12,0xf5,0x74,0x9c,0xaa,0x23,
0x0e,0x86,0xab,0xbe,0x2a,0x02,0xe7,0x67,0xe6,0x44,0xa2,0x6c,0xc2,0x93,0x9f,0xf1,
0xf6,0xfa,0x36,0xd2,0x50,0x68,0x9e,0x62,0x71,0x15,0x3d,0xd6,0x40,0xc4,0xe2,0x0f,
0x8e,0x83,0x77,0x6b,0x25,0x05,0x3f,0x0c,0x30,0xea,0x70,0xb7,0xa1,0xe8,0xa9,0x65,
0x8d,0x27,0x1a,0xdb,0x81,0xb3,0xa0,0xf4,0x45,0x7a,0x19,0xdf,0xee,0x78,0x34,0x60
};
public static final short[] S1 = {
0x55,0xc2,0x63,0x71,0x3b,0xc8,0x47,0x86,0x9f,0x3c,0xda,0x5b,0x29,0xaa,0xfd,0x77,
0x8c,0xc5,0x94,0x0c,0xa6,0x1a,0x13,0x00,0xe3,0xa8,0x16,0x72,0x40,0xf9,0xf8,0x42,
0x44,0x26,0x68,0x96,0x81,0xd9,0x45,0x3e,0x10,0x76,0xc6,0xa7,0x8b,0x39,0x43,0xe1,
0x3a,0xb5,0x56,0x2a,0xc0,0x6d,0xb3,0x05,0x22,0x66,0xbf,0xdc,0x0b,0xfa,0x62,0x48,
0xdd,0x20,0x11,0x06,0x36,0xc9,0xc1,0xcf,0xf6,0x27,0x52,0xbb,0x69,0xf5,0xd4,0x87,
0x7f,0x84,0x4c,0xd2,0x9c,0x57,0xa4,0xbc,0x4f,0x9a,0xdf,0xfe,0xd6,0x8d,0x7a,0xeb,
0x2b,0x53,0xd8,0x5c,0xa1,0x14,0x17,0xfb,0x23,0xd5,0x7d,0x30,0x67,0x73,0x08,0x09,
0xee,0xb7,0x70,0x3f,0x61,0xb2,0x19,0x8e,0x4e,0xe5,0x4b,0x93,0x8f,0x5d,0xdb,0xa9,
0xad,0xf1,0xae,0x2e,0xcb,0x0d,0xfc,0xf4,0x2d,0x46,0x6e,0x1d,0x97,0xe8,0xd1,0xe9,
0x4d,0x37,0xa5,0x75,0x5e,0x83,0x9e,0xab,0x82,0x9d,0xb9,0x1c,0xe0,0xcd,0x49,0x89,
0x01,0xb6,0xbd,0x58,0x24,0xa2,0x5f,0x38,0x78,0x99,0x15,0x90,0x50,0xb8,0x95,0xe4,
0xd0,0x91,0xc7,0xce,0xed,0x0f,0xb4,0x6f,0xa0,0xcc,0xf0,0x02,0x4a,0x79,0xc3,0xde,
0xa3,0xef,0xea,0x51,0xe6,0x6b,0x18,0xec,0x1b,0x2c,0x80,0xf7,0x74,0xe7,0xff,0x21,
0x5a,0x6a,0x54,0x1e,0x41,0x31,0x92,0x35,0xc4,0x33,0x07,0x0a,0xba,0x7e,0x0e,0x34,
0x88,0xb1,0x98,0x7c,0xf3,0x3d,0x60,0x6c,0x7b,0xca,0xd3,0x1f,0x32,0x65,0x04,0x28,
0x64,0xbe,0x85,0x9b,0x2f,0x59,0x8a,0xd7,0xb0,0x25,0xac,0xaf,0x12,0x03,0xe2,0xf2
};
// /**
// * 常量数组 D（16bit short二维数组适配）
// */
// public static final short[][] ZUC256_D = {
// {0x22,0x2F,0x24,0x2A,0x6D,0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x52,0x10,0x30},
// {0x22,0x2F,0x25,0x2A,0x6D,0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x52,0x10,0x30},
// {0x23,0x2F,0x24,0x2A,0x6D,0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x52,0x10,0x30},
// {0x23,0x2F,0x25,0x2A,0x6D,0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x52,0x10,0x30}
// };
public static final short D_COLS = 16;
/**
* 常量数组 D（16bit short二维数组适配）
*/
public static final short[] ZUC256_D_FLAT = {
// row 0
0x22,0x2F,0x24,0x2A,0x6D,0x40,0x40,0x40,
0x40,0x40,0x40,0x40,0x40,0x52,0x10,0x30,
// row 1
0x22,0x2F,0x25,0x2A,0x6D,0x40,0x40,0x40,
0x40,0x40,0x40,0x40,0x40,0x52,0x10,0x30,
// row 2
0x23,0x2F,0x24,0x2A,0x6D,0x40,0x40,0x40,
0x40,0x40,0x40,0x40,0x40,0x52,0x10,0x30,
// row 3
0x23,0x2F,0x25,0x2A,0x6D,0x40,0x40,0x40,
0x40,0x40,0x40,0x40,0x40,0x52,0x10,0x30
};
/** 读取 D[row][col]，返回无符号值 0..255 */
public static short getD(short row, short col) {
// idx = row * 16 + col
short idx = (short)(row * D_COLS + col);
return (short)(ZUC256_D_FLAT[idx] & 0xFF);
}
/** 取一行 (返回一段16个short) */
public static void getDRow(short row, short[] out, short outOff) {
short base = (short)(row * D_COLS);
for (short i = 0; i < D_COLS; i++) {
out[(short)(outOff + i)] = ZUC256_D_FLAT[(short)(base + i)];
}
}
}

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//package com.cscn;
//
//import javacard.framework.Util;
//import javacard.framework.JCSystem;
//
///**
// * 辅助工具：装载/存储、位运算、线性变换、打印等。
// */
//public final class Zuc256Util {
//
// private Zuc256Util() {}
//
//// /** 辅助方法：将字节数组转换为32位整数 */
//// public static int getU32(byte[] p, int offset) {
//// return ((p[offset] & 0xFF) << 24) |
//// ((p[offset + 1] & 0xFF) << 16) |
//// ((p[offset + 2] & 0xFF) << 8) |
//// (p[offset + 3] & 0xFF);
//// }
// /** 辅助方法：从字节数组取出 32 位整数，存放到 short[2] (lo, hi) */
// public static void getU32(byte[] p, short offset, short[] out32 /* len=2 */) {
// out32[0] = (short) (((p[(short)(offset + 2)] & 0xFF) << 8) | (p[(short)(offset + 3)] & 0xFF)); //低16位
// out32[1] = (short) (((p[offset] & 0xFF) << 8) | (p[(short)(offset + 1)] & 0xFF)); //高16位
// }
//
//
//// /** 辅助方法：将32位整数转换为字节数组 */
//// public static void putU32(byte[] p, int offset, int v) {
//// p[offset] = (byte) (v >> 24);
//// p[offset + 1] = (byte) (v >> 16);
//// p[offset + 2] = (byte) (v >> 8);
//// p[offset + 3] = (byte) v;
//// }
// /** 辅助方法：将32位整数(vlo=低16位, vhi=高16位)写入字节数组 */
// public static void putU32(byte[] p, short offset, short vlo, short vhi) {
// // 写高16位
// p[offset] = (byte) ((vhi >> 8) & 0xFF);
// p[(short)(offset + 1)] = (byte) (vhi & 0xFF);
//
// // 写低16位
// p[(short)(offset + 2)] = (byte) ((vlo >> 8) & 0xFF);
// p[(short)(offset + 3)] = (byte) (vlo & 0xFF);
// }
//
//
// // === 31/32 位运算 ===
//
//// /** 31位加法 */
//// public static int add31(int a, int b) {
//// long sum = (long)a + b;
//// return (int) ((sum & 0x7FFFFFFF) + (sum >> 31));
//// }
// /** 31位加法: (a+b) mod (2^31 - 1)
// * 输入: a_lo=低16位, a_hi=高15位
// * b_lo=低16位, b_hi=高15位
// * 输出: out[0]=lo, out[1]=hi
// */
// public static void add31(short a_lo, short a_hi, short b_lo, short b_hi, short[] out /* len==2 */) {
// // ---- 低16位相加 ----
// short lo = (short)(a_lo + b_lo);
// short carry = (short)(
// ( ( (short)( (a_lo & b_lo) | ((a_lo | b_lo) & (short)~lo) ) ) & (short)0x8000 ) != 0
// ? 1 : 0
// );
// // ---- 高15位相加 + 进位 ----
// short hi_raw = (short)((short)((a_hi & 0x7FFF) + (b_hi & 0x7FFF)) + carry);
//
// // 提取第31位（hi_raw bit15）
// short topbit = (short)((hi_raw >>> 15) & 1);
// short hi = (short)(hi_raw & 0x7FFF); // 保留15位
//
// // ---- 若第31位=1，再+1 ----
// if (topbit == 1) {
// short lo2 = (short)(lo + 1);
// short c2 = (short)((lo2 == 0) ? 1 : 0); // lo溢出时进位
// lo = lo2;
// hi = (short)((hi + c2) & 0x7FFF);
// }
//
// out[0] = lo;
// out[1] = hi;
// }
//
//
//// /** 31位旋转 */
//// public static int rot31(int a, int k) {
//// return ((a << k) | (a >>> (31 - k))) & 0x7FFFFFFF;
//// }
// /** 31位循环左移: (a <<< k) mod (2^31 -1)
// * 输入: a_lo=低16位, a_hi=高15位
// * 输出: out[0]=lo, out[1]=hi
// */
// public static void rot31(short a_lo, short a_hi, short k, short[] out /* len==2 */) {
// k = (short)(k % 31); // 限制在 0..30
// if (k == 0) {
// out[0] = a_lo;
// out[1] = (short)(a_hi & 0x7FFF);
// return;
// }
//
// // 拆成 31 位数组 [bit0..bit30]
// short[] bits = JCSystem.makeTransientShortArray((short)31, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
// for (short i = 0; i < 16; i++) {
// bits[i] = (short)((a_lo >>> i) & 1);
// }
// for (short i = 0; i < 15; i++) {
// bits[(short)(16 + i)] = (short)((a_hi >>> i) & 1);
// }
//
// // 旋转
// short[] resBits = JCSystem.makeTransientShortArray((short)31, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
// for (short i = 0; i < 31; i++) {
// short j = (short)((i + k) % 31);
// resBits[j] = bits[i];
// }
//
// // 拼回 lo, hi
// short lo = 0;
// for (short i = 0; i < 16; i++) {
// lo = (short)(lo | (resBits[i] << i));
// }
// short hi = 0;
// for (short i = 0; i < 15; i++) {
// hi = (short)(hi | (resBits[(short)(16 + i)] << i));
// }
//
// out[0] = lo;
// out[1] = hi;
// }
//
//
//// /** 32位旋转 */
//// public static int rot32(int a, int k) {
//// return (a << k) | (a >>> (32 - k));
//// }
// /** 32位循环左移: (a<<<k) */
// public static void rot32(short a_lo, short a_hi, short k, short[] out /*len==2*/) {
// k = (short)(k & 31); // 0..31
// short lo = a_lo, hi = a_hi, nw_hi, nw_lo;
// while (k > 0) {
// // 先做 1 位循环左移
// // 注意：short 在 >>> 时会先提升为 int，所以下面都再用 &1 取最低位，避免符号扩展影响
// nw_hi = (short)((hi << 1) | ((lo >>> 15) & 1));
// nw_lo = (short)((lo << 1) | ((hi >>> 15) & 1));
// hi = nw_hi;
// lo = nw_lo;
// k--;
// }
// out[0] = lo; // 低16位
// out[1] = hi; // 高16位
// }
//
//
//// /**
//// * L1函数
//// */
//// public static int L1(int x) {
//// return x ^ rot32(x, 2) ^ rot32(x, 10) ^ rot32(x, 18) ^ rot32(x, 24);
//// }
// /**
// * L1函数: x ^ (x<<<2) ^ (x<<<10) ^ (x<<<18) ^ (x<<<24)
// * 输入: x_lo, x_hi
// * 输出: out[0]=lo, out[1]=hi
// */
// public static void L1(short x_lo, short x_hi, short[] out /*len==2*/) {
// short[] t = JCSystem.makeTransientShortArray((short)2, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
// short[] acc = JCSystem.makeTransientShortArray((short)2, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
//
// // acc = x
// acc[0] = x_lo;
// acc[1] = x_hi;
//
// // acc ^= rot32(x, 2)
// rot32(x_lo, x_hi, (short)2, t);
// acc[0] ^= t[0];
// acc[1] ^= t[1];
//
// // acc ^= rot32(x, 10)
// rot32(x_lo, x_hi, (short)10, t);
// acc[0] ^= t[0];
// acc[1] ^= t[1];
//
// // acc ^= rot32(x, 18)
// rot32(x_lo, x_hi, (short)18, t);
// acc[0] ^= t[0];
// acc[1] ^= t[1];
//
// // acc ^= rot32(x, 24)
// rot32(x_lo, x_hi, (short)24, t);
// acc[0] ^= t[0];
// acc[1] ^= t[1];
//
// out[0] = acc[0];
// out[1] = acc[1];
// }
//
//
//// /**
//// * L2函数
//// */
//// public static int L2(int x) {
//// return x ^ rot32(x, 8) ^ rot32(x, 14) ^ rot32(x, 22) ^ rot32(x, 30);
//// }
// /**
// * L2函数: x ^ (x<<<8) ^ (x<<<14) ^ (x<<<22) ^ (x<<<30)
// * 输入: x_lo, x_hi
// * 输出: out[0]=lo, out[1]=hi
// */
// public static void L2(short x_lo, short x_hi, short[] out /*len==2*/) {
// short[] t = JCSystem.makeTransientShortArray((short)2, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
// short[] acc = JCSystem.makeTransientShortArray((short)2, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
//
// // acc = x
// acc[0] = x_lo;
// acc[1] = x_hi;
//
// // acc ^= rot32(x, 8)
// rot32(x_lo, x_hi, (short)8, t);
// acc[0] ^= t[0];
// acc[1] ^= t[1];
//
// // acc ^= rot32(x, 14)
// rot32(x_lo, x_hi, (short)14, t);
// acc[0] ^= t[0];
// acc[1] ^= t[1];
//
// // acc ^= rot32(x, 22)
// rot32(x_lo, x_hi, (short)22, t);
// acc[0] ^= t[0];
// acc[1] ^= t[1];
//
// // acc ^= rot32(x, 30)
// rot32(x_lo, x_hi, (short)30, t);
// acc[0] ^= t[0];
// acc[1] ^= t[1];
//
// out[0] = acc[0];
// out[1] = acc[1];
// }
//
//
//// /** 创建31位无符号整数 */
//// public static int makeU31(int a, int b, int c, int d) {
//// return (((a & 0xFF) << 23) |
//// ((b & 0xFF) << 16) |
//// ((c & 0xFF) << 8) |
//// (d & 0xFF)) & 0x7FFFFFFF;
//// }
// /** 创建31位无符号整数，结果放到 out[0]=lo, out[1]=hi(15位) */
// public static void makeU31(short a, short b, short c, short d, short[] out /*len==2*/) {
// // 四个字节
// short b0 = (short)(a & 0xFF); // 最高字节
// short b1 = (short)(b & 0xFF);
// short b2 = (short)(c & 0xFF);
// short b3 = (short)(d & 0xFF); // 最低字节
//
// // 拼成 32 位: b0<<24 | b1<<16 | b2<<8 | b3
// // lo = 低16位
// out[0] = (short)((b2 << 8) | b3);
//
// // hi = 高15位（丢弃 bit31）
// out[1] = (short)((b0 << 7) | b1);
// }
//
//
//// /** 创建32位无符号整数 */
//// public static int makeU32(int a, int b, int c, int d) {
//// return ((a & 0xFF) << 24) |
//// ((b & 0xFF) << 16) |
//// ((c & 0xFF) << 8) |
//// (d & 0xFF);
//// }
// /** 创建32位无符号整数，结果放到 out[0]=lo, out[1]=hi */
// public static void makeU32(short a, short b, short c, short d, short[] out /*len==2*/) {
// // 四个字节
// short b0 = (short)(a & 0xFF); // 最高字节
// short b1 = (short)(b & 0xFF);
// short b2 = (short)(c & 0xFF);
// short b3 = (short)(d & 0xFF); // 最低字节
//
// // lo = 低16位
// out[0] = (short)((b2 << 8) | b3);
//
// // hi = 高16位
// out[1] = (short)((b0 << 8) | b1);
// }
//
//
//
// /** 提取IV */
// public static void extractIv(byte[] input25Byte, byte[] output23Byte) {
// if (input25Byte == null || output23Byte == null) return;
//
// // 复制前17字节
// Util.arrayCopyNonAtomic(input25Byte, (short)0, output23Byte, (short)0, (short)17);
//
//
// // 处理剩余8字节
// byte[] src = JCSystem.makeTransientByteArray((short)8, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
// for (short i = 0; i < 8; i++) {
// src[i] = (byte) (input25Byte[(short)(17 + i)] & 0x3F);
// }
//
// output23Byte[17] = (byte) ((src[0] << 2) | (src[1] >>> 4));
// output23Byte[18] = (byte) (((src[1] & 0x0F) << 4) | (src[2] >>> 2));
// output23Byte[19] = (byte) (((src[2] & 0x03) << 6) | src[3]);
// output23Byte[20] = (byte) ((src[4] << 2) | (src[5] >>> 4));
// output23Byte[21] = (byte) (((src[5] & 0x0F) << 4) | (src[6] >>> 2));
// output23Byte[22] = (byte) (((src[6] & 0x03) << 6) | src[7]);
// }
//
// /**
// * 32位加法: (a_hi:a_lo) + (b_hi:b_lo)
// * out[0] = lo, out[1] = hi
// */
// static void add32(short a_lo, short a_hi,
// short b_lo, short b_hi,
// short[] out /*len=2*/) {
//
// // ---- 低16位 ----
// short lo_low = (short)((a_lo & 0x00FF) + (b_lo & 0x00FF));
// short carry0 = (short)(((a_lo & 0x00FF) + (b_lo & 0x00FF)) >>> 8);
//
// short a_lo_hi = (short)((a_lo >>> 8) & 0x00FF);
// short b_lo_hi = (short)((b_lo >>> 8) & 0x00FF);
// short lo_high = (short)(a_lo_hi + b_lo_hi + carry0);
// short carry1 = (short)(lo_high >>> 8);
//
// short lo_res = (short)((lo_high << 8) | (lo_low & 0x00FF));
//
// // ---- 高16位 ----
// short hi_low = (short)((a_hi & 0x00FF) + (b_hi & 0x00FF) + carry1);
// short carry2 = (short)(hi_low >>> 8);
//
// short a_hi_hi = (short)((a_hi >>> 8) & 0x00FF);
// short b_hi_hi = (short)((b_hi >>> 8) & 0x00FF);
// short hi_high = (short)(a_hi_hi + b_hi_hi + carry2);
//
// short hi_res = (short)((hi_high << 8) | (hi_low & 0x00FF));
//
// // ---- 输出 ----
// out[0] = lo_res;
// out[1] = hi_res;
// }
//
// /**
// * 32位加法 + 返回进位（只用 short）
// * 输入: (a_hi:a_lo) + (b_hi:b_lo)
// * 输出: out[0]=lo, out[1]=hi
// * 返回: 最终进位(0/1)
// */
// static short add32_with_carry(short a_lo, short a_hi,
// short b_lo, short b_hi,
// short[] out /* len=2 */) {
// // ---- 低16位：分两段8位相加 ----
// short s0 = (short)((a_lo & (short)0x00FF) + (b_lo & (short)0x00FF)); // 0..510
// short c0 = (short)(s0 >>> 8); // 0/1
// short s1 = (short)(((a_lo >>> 8) & (short)0x00FF)
// + ((b_lo >>> 8) & (short)0x00FF)
// + c0); // 0..511
// short c1 = (short)(s1 >>> 8); // 0/1
// short lo = (short)((s1 << 8) | (s0 & (short)0x00FF));
//
// // ---- 高16位：再分两段8位相加，并加上 c1 ----
// short s2 = (short)((a_hi & (short)0x00FF) + (b_hi & (short)0x00FF) + c1);
// short c2 = (short)(s2 >>> 8); // 0/1
// short s3 = (short)(((a_hi >>> 8) & (short)0x00FF)
// + ((b_hi >>> 8) & (short)0x00FF)
// + c2); // 0..511
// short c3 = (short)(s3 >>> 8); // 最终进位 0/1
// short hi = (short)((s3 << 8) | (s2 & (short)0x00FF));
//
// out[0] = lo;
// out[1] = hi;
// return (short)(c3 & 1);
// }
//
//
//
// /**
// * 64位加法: a4 + b4 -> a4
// * 输入输出: short[4]，低到高 (a[0]=lo16, a[1]=hi16, a[2]=lo16 of high dword, a[3]=hi16 of high dword)
// */
// static void add64(short[] a, short[] b) {
// short[] tmp = JCSystem.makeTransientShortArray((short)2, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
//
// // 低 32 位
// short carry = add32_with_carry(a[0], a[1], b[0], b[1], tmp);
// a[0] = tmp[0];
// a[1] = tmp[1];
//
// // 高 32 位 + carry
// add32((short)(a[2] + (short)(carry & (short)0x0001)), a[3], b[2], b[3], tmp);
// a[2] = tmp[0];
// a[3] = tmp[1];
// }
//
//
//
// // 32位异或
// public static void xor32(short a_lo, short a_hi, short b_lo, short b_hi, short[] out /*len==2*/) {
// out[0] = (short)(a_lo ^ b_lo);
// out[1] = (short)(a_hi ^ b_hi);
// }
//
// /**
// * 把32位数 b (b[0]=lo, b[1]=hi) 左移 k 位 (0 <= k < 32)，
// * 结果放到64位数 a (a[0]=最低16位 ... a[3]=最高16位)。
// */
// static void create_64b_from_32b(short[] a/*len=4*/, short[] b/*len=2*/, short k) {
// short a0 = b[0], a1 = b[1], a2 = 0, a3 = 0;
//
// if (k >= 16) {
// a3 = a2; // 0
// a2 = a1; // 原 hi16
// a1 = a0; // 原 lo16
// a0 = 0;
// k = (short)(k - 16);
// }
//
// while (k > 0) {
// short c0 = (short)((a0 >>> 15) & 1);
// short c1 = (short)((a1 >>> 15) & 1);
// short c2 = (short)((a2 >>> 15) & 1);
//
// a3 = (short)((a3 << 1) | c2);
// a2 = (short)((a2 << 1) | c1);
// a1 = (short)((a1 << 1) | c0);
// a0 = (short)(a0 << 1);
// k--;
// }
//
// a[0] = a0; a[1] = a1; a[2] = a2; a[3] = a3;
// }
//
//
// /**
// * (A & 0x7FFFFFFF)，结果放在 out[4]，只保留低32位并清掉最高bit。
// */
// static void and64_7FFFFFFF_to32(short[] A, short[] out) {
// out[0] = A[0]; // lo16
// out[1] = (short)(A[1] & 0x7FFF); // hi16 (清除最高bit)
// out[2] = 0;
// out[3] = 0;
// }
//
// /**
// * 64位无符号右移 31 位
// * 输入: A[0..3] (short[4], A[0]最低16位)
// * 输出: out[0..3]
// */
// static void shr64u_31(short[] A, short[] out) {
// // 先拼出 64bit 的逻辑，逐段右移
// // A >>> 31 = (A >>> 16) >>> 15
//
// // 先右移 16，相当于丢掉 A[0]，整体右移一半字
// out[0] = A[1]; // 原 A[1] -> 新低16位
// out[1] = A[2]; // 原 A[2]
// out[2] = A[3]; // 原 A[3]
// out[3] = 0; // 高位补0
//
// // 再右移 15 位
// short c0 = (short)((out[0] & (short)0xFFFF) >>> 15); // out[0] 最后一位变进位
// short c1 = (short)((out[1] & (short)0xFFFF) >>> 15);
// short c2 = (short)((out[2] & (short)0xFFFF) >>> 15);
//
// out[0] = (short)((c0 & 0x0001) | (out[1] << 1));
// out[1] = (short)((c1 & 0x0001) | (out[2] << 1));
// out[2] = (short)(c2 & 0x0001);
// }
//
// /**
// * 32位无符号右移 1 位
// * 输入: lo,hi (short) 表示 32 位数 (hi:高16位, lo:低16位)
// * 输出: out[0]=lo, out[1]=hi
// */
// static void shr32u1(short lo, short hi, short[] out) {
// // >>>1：先处理低16位
// short nwLo = (short)(((((lo & (short)0xFFFF) >>> 1) & (short)0x7FFF)) | ((hi & 0x0001) << 15));
// short nwHi = (short)(((hi & (short)0xFFFF) >>> 1) & (short)0x7FFF);
//
// out[0] = nwLo;
// out[1] = nwHi;
// }
//
//
//
//
// /** 打印/*十六进制（调试用，TODO 生产/JC 环境可移除） *//*
// public static void printHex(String label, byte[] data, int len) {
// System.out.print(label + ": ");
// for (int i = 0; i < len; i++) {
// System.out.printf("%02x ", data[i] & 0xFF);
// }
// System.out.println();
// }*/
//}