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位置加密applet基本实现，目录下包含c java参考代码、打包工具、说明文档、 #2

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zcy merged 20 commits from zcy_dev_cap into main 2025-09-09 02:39:35 +00:00
Conversation 0 Commits 20 Files Changed 783 +17232 -1831
739 changed files with 17232 additions and 1831 deletions
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2
Project/Src/com/cscn/Zuc256Core.java
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@@ -4,9 +4,11 @@ package com.cscn;
import static com.cscn.Zuc256Util.L1;
import static com.cscn.Zuc256Util.L2;
import static com.cscn.Zuc256Util.add31;
import static com.cscn.Zuc256Util.add31_pair;
import static com.cscn.Zuc256Util.makeU31;
import static com.cscn.Zuc256Util.makeU32;
import static com.cscn.Zuc256Util.rot31;
import static com.cscn.Zuc256Util.rot31_pair;
/**
* ZUC-256 核心：状态初始化、密钥字生成、密钥流生成。

32
Project/Src/com/cscn/Zuc256MacCtx.java
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@@ -1,15 +1,31 @@
package com.cscn;
/**
* MAC上下文类
* MAC上下文类（JavaCard版，int 拆分为两个 short）
*/
public final class Zuc256MacCtx {
int[] LFSR = new int[16];
int R1;
int R2;
// LFSR: 原本 int[16]，拆成 hi/lo 各 16 short
short[] LFSR_hi = new short[16];
short[] LFSR_lo = new short[16];
// 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 = new byte[4];
int buflen;
int[] T = new int[4];
int[] K0 = new int[4];
int macbits;
short buflen;
// T: 原本 int[4]，拆成 hi/lo
short[] T_hi = new short[4];
short[] T_lo = new short[4];
// K0: 原本 int[4]，拆成 hi/lo
short[] K0_hi = new short[4];
short[] K0_lo = new short[4];
// macbits: 原本 int，改成 short 足够
short macbits;
}

14
Project/Src/com/cscn/Zuc256State.java
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@@ -1,10 +1,16 @@
package com.cscn;
/**
* ZUC状态类
* ZUC状态类（JavaCard版，int 拆为 hi/lo short）
*/
public final class Zuc256State {
int[] LFSR = new int[16]; // 线性反馈移位寄存器
int R1; // 寄存器1
int R2; // 寄存器2
// LFSR: 原 int[16] -> hi/lo 各 16
public short[] LFSR_hi = new short[16];
public short[] LFSR_lo = new short[16];
// R1, R2: 原 int -> hi/lo
public short R1_hi;
public short R1_lo;
public short R2_hi;
public short R2_lo;
}

6
Project/Src/com/cscn/Zuc256Tables.java
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@@ -9,7 +9,7 @@ public final class Zuc256Tables {
private Zuc256Tables() {}
// S盒：S0, S1
public static final int[] S0 = {
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,
@@ -28,7 +28,7 @@ public final class Zuc256Tables {
0x8d,0x27,0x1a,0xdb,0x81,0xb3,0xa0,0xf4,0x45,0x7a,0x19,0xdf,0xee,0x78,0x34,0x60
};
public static final int[] S1 = {
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,
@@ -50,7 +50,7 @@ public final class Zuc256Tables {
/**
* 常量数组 D
*/
public static final int[][] ZUC256_D = {
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},

38
Project/Src/com/cscn/Zuc256Util.java
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@@ -7,22 +7,36 @@ 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[offset + 2] & 0xFF) << 8) | (p[offset + 3] & 0xFF)); //低16位
out32[1] = (short) (((p[offset] & 0xFF) << 8) | (p[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
putU16(p, offset, vhi);
// 写低16位
putU16(p, (short)(offset + 2), vlo);
}
/** 辅助方法：将16位整数(short)写入字节数组，高字节在前 */
public static void putU16(byte[] p, short offset, short v) {
p[offset] = (byte) ((v >> 8) & 0xFF);
p[offset + 1] = (byte) (v & 0xFF);
}
// === 31/32 位运算 ===
/** 31位加法 */