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package com.qtzl.alterSales.manager.utils; |
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import java.nio.charset.Charset; |
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import java.util.Arrays; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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/** |
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* @ClassName: SMS4 |
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* @Description: SMS |
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* @author lzys |
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* @date 2019年11月18日 |
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*/ |
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public class Sm4Utils{ |
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private static final Logger logger = LoggerFactory.getLogger(Sm4Utils.class); |
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/** |
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* @description: ENCRYPT与DECRYPT为加解密的判断依据 |
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*/ |
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private static final int ENCRYPT = 1; |
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private static final int DECRYPT = 0; |
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/** |
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* @description: 轮数，轮函数的迭代次数 加密算法与密钥扩展算法都采用32轮非线性迭代结构。 |
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*/ |
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private static final int ROUND = 32; |
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private static final int BLOCK = 16; |
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/** |
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* @description: S盒中数据均采用16进制表示 |
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*/ |
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private static short[] sBox = { 0xd6, 0x90, 0xe9, 0xfe, 0xcc, 0xe1, 0x3d, |
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0xb7, 0x16, 0xb6, 0x14, 0xc2, 0x28, 0xfb, 0x2c, 0x05, 0x2b, 0x67, |
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0x9a, 0x76, 0x2a, 0xbe, 0x04, 0xc3, 0xaa, 0x44, 0x13, 0x26, 0x49, |
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0x86, 0x06, 0x99, 0x9c, 0x42, 0x50, 0xf4, 0x91, 0xef, 0x98, 0x7a, |
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0x33, 0x54, 0x0b, 0x43, 0xed, 0xcf, 0xac, 0x62, 0xe4, 0xb3, 0x1c, |
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0xa9, 0xc9, 0x08, 0xe8, 0x95, 0x80, 0xdf, 0x94, 0xfa, 0x75, 0x8f, |
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0x3f, 0xa6, 0x47, 0x07, 0xa7, 0xfc, 0xf3, 0x73, 0x17, 0xba, 0x83, |
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0x59, 0x3c, 0x19, 0xe6, 0x85, 0x4f, 0xa8, 0x68, 0x6b, 0x81, 0xb2, |
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0x71, 0x64, 0xda, 0x8b, 0xf8, 0xeb, 0x0f, 0x4b, 0x70, 0x56, 0x9d, |
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0x35, 0x1e, 0x24, 0x0e, 0x5e, 0x63, 0x58, 0xd1, 0xa2, 0x25, 0x22, |
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0x7c, 0x3b, 0x01, 0x21, 0x78, 0x87, 0xd4, 0x00, 0x46, 0x57, 0x9f, |
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0xd3, 0x27, 0x52, 0x4c, 0x36, 0x02, 0xe7, 0xa0, 0xc4, 0xc8, 0x9e, |
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0xea, 0xbf, 0x8a, 0xd2, 0x40, 0xc7, 0x38, 0xb5, 0xa3, 0xf7, 0xf2, |
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0xce, 0xf9, 0x61, 0x15, 0xa1, 0xe0, 0xae, 0x5d, 0xa4, 0x9b, 0x34, |
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0x1a, 0x55, 0xad, 0x93, 0x32, 0x30, 0xf5, 0x8c, 0xb1, 0xe3, 0x1d, |
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0xf6, 0xe2, 0x2e, 0x82, 0x66, 0xca, 0x60, 0xc0, 0x29, 0x23, 0xab, |
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0x0d, 0x53, 0x4e, 0x6f, 0xd5, 0xdb, 0x37, 0x45, 0xde, 0xfd, 0x8e, |
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0x2f, 0x03, 0xff, 0x6a, 0x72, 0x6d, 0x6c, 0x5b, 0x51, 0x8d, 0x1b, |
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0xaf, 0x92, 0xbb, 0xdd, 0xbc, 0x7f, 0x11, 0xd9, 0x5c, 0x41, 0x1f, |
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0x10, 0x5a, 0xd8, 0x0a, 0xc1, 0x31, 0x88, 0xa5, 0xcd, 0x7b, 0xbd, |
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0x2d, 0x74, 0xd0, 0x12, 0xb8, 0xe5, 0xb4, 0xb0, 0x89, 0x69, 0x97, |
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0x4a, 0x0c, 0x96, 0x77, 0x7e, 0x65, 0xb9, 0xf1, 0x09, 0xc5, 0x6e, |
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0xc6, 0x84, 0x18, 0xf0, 0x7d, 0xec, 0x3a, 0xdc, 0x4d, 0x20, 0x79, |
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0xee, 0x5f, 0x3e, 0xd7, 0xcb, 0x39, 0x48 }; |
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/** |
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* @description: 常数FK，在密钥扩展中使用一些常数 |
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*/ |
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private static int[] fk = { 0xa3b1bac6, 0x56aa3350, 0x677d9197, 0xb27022dc }; |
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/** |
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* @description: 32个固定参数CK 产生规则：Ckij= (4i+j)×7（mod 256） ，i=0,1,2…31,j=0,1,…3 |
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*/ |
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private static int[] ck = { 0x00070e15, 0x1c232a31, 0x383f464d, 0x545b6269, |
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0x70777e85, 0x8c939aa1, 0xa8afb6bd, 0xc4cbd2d9, 0xe0e7eef5, |
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0xfc030a11, 0x181f262d, 0x343b4249, 0x50575e65, 0x6c737a81, |
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0x888f969d, 0xa4abb2b9, 0xc0c7ced5, 0xdce3eaf1, 0xf8ff060d, |
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0x141b2229, 0x30373e45, 0x4c535a61, 0x686f767d, 0x848b9299, |
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0xa0a7aeb5, 0xbcc3cad1, 0xd8dfe6ed, 0xf4fb0209, 0x10171e25, |
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0x2c333a41, 0x484f565d, 0x646b7279 }; |
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/** |
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* @description: 移位，rot1(x,y)为循环左移位y |
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* @param: x |
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* @param: y |
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* @return: int |
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*/ |
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private int rotl(int x, int y) { |
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return x << y | x >>> (32 - y); |
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} |
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/** |
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* @description: 加解密，非线性τ函数：B=τ(A) |
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* @param: a |
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* @return: int |
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*/ |
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private int byteSub(int a) { |
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return (sBox[a >>> 24 & 0xFF] & 0xFF) << 24 |
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^ (sBox[a >>> 16 & 0xFF] & 0xFF) << 16 |
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^ (sBox[a >>> 8 & 0xFF] & 0xFF) << 8 ^ (sBox[a & 0xFF] & 0xFF); |
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} |
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/** |
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* @description: 加解密的L函数 |
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* @param: b |
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* @return: int |
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*/ |
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private int l1(int b) { |
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return b ^ rotl(b, 2) ^ rotl(b, 10) ^ rotl(b, 18) ^ rotl(b, 24); |
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} |
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/** |
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* @description: 密钥扩展 |
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* @param: b |
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* @return: int |
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*/ |
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private int l2(int b) { |
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return b ^ rotl(b, 13) ^ rotl(b, 23); |
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} |
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/** |
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* @description: SMS4的加密方法实现 |
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* @param: input（待输入的明文） |
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* @param: output（待输出的密文） |
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* @param: rk（轮密钥） |
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* @return: void |
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*/ |
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private void sms4Crypt(byte[] input, byte[] output, int[] rk) { |
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int mid; |
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int[] x = new int[4]; |
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int[] tmp = new int[4]; |
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for (int i = 0; i < 4; i++) { |
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tmp[0] = input[4 * i] & 0xff; |
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tmp[1] = input[1 + 4 * i] & 0xff; |
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tmp[2] = input[2 + 4 * i] & 0xff; |
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tmp[3] = input[3 + 4 * i] & 0xff; |
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x[i] = tmp[0] << 24 | tmp[1] << 16 | tmp[2] << 8 | tmp[3]; |
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} |
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// 进行32轮的加密变换操作 |
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for (int r = 0; r < 32; r += 4) { |
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mid = x[1] ^ x[2] ^ x[3] ^ rk[r]; |
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mid = byteSub(mid); |
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// x4 |
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x[0] = x[0] ^ l1(mid); |
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mid = x[2] ^ x[3] ^ x[0] ^ rk[r + 1]; |
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mid = byteSub(mid); |
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// x5 |
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x[1] = x[1] ^ l1(mid); |
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mid = x[3] ^ x[0] ^ x[1] ^ rk[r + 2]; |
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mid = byteSub(mid); |
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// x6 |
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x[2] = x[2] ^ l1(mid); |
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mid = x[0] ^ x[1] ^ x[2] ^ rk[r + 3]; |
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mid = byteSub(mid); |
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// x7 |
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x[3] = x[3] ^ l1(mid); |
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} |
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// 反序变换 |
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for (int j = 0; j < 16; j += 4) { |
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output[j] = (byte) (x[3 - j / 4] >>> 24 & 0xFF); |
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output[j + 1] = (byte) (x[3 - j / 4] >>> 16 & 0xFF); |
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output[j + 2] = (byte) (x[3 - j / 4] >>> 8 & 0xFF); |
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output[j + 3] = (byte) (x[3 - j / 4] & 0xFF); |
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} |
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} |
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/** |
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* @description: SMS4的密钥扩展算法 |
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* @param: key（加密密钥） |
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* @param: rk（子密钥） |
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* @param: cryptFlag（加解密标志） |
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* @return: void |
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*/ |
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private void sms4KeyExt(byte[] key, int[] rk, int cryptFlag) { |
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int r, mid; |
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int[] x = new int[4]; |
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int[] tmp = new int[4]; |
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for (int i = 0; i < 4; i++) { |
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// 实现对初始密钥的分组（分为4组） |
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tmp[0] = key[4 * i] & 0xFF; |
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tmp[1] = key[1 + 4 * i] & 0xff; |
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tmp[2] = key[2 + 4 * i] & 0xff; |
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tmp[3] = key[3 + 4 * i] & 0xff; |
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x[i] = tmp[0] << 24 | tmp[1] << 16 | tmp[2] << 8 | tmp[3]; |
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x[i] = key[4 * i] << 24 | key[1 + 4 * i] << 16 |
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| key[2 + 4 * i] << 8 | key[3 + 4 * i]; |
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} |
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// 异或运算之后的结果 |
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x[0] ^= fk[0]; |
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x[1] ^= fk[1]; |
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x[2] ^= fk[2]; |
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x[3] ^= fk[3]; |
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for (r = 0; r < 32; r += 4) { |
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// |
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mid = x[1] ^ x[2] ^ x[3] ^ ck[r]; |
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mid = byteSub(mid); |
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// rk0=K4 |
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rk[r] = x[0] ^= l2(mid); |
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mid = x[2] ^ x[3] ^ x[0] ^ ck[r + 1]; |
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mid = byteSub(mid); |
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// rk1=K5 |
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rk[r + 1] = x[1] ^= l2(mid); |
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mid = x[3] ^ x[0] ^ x[1] ^ ck[r + 2]; |
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mid = byteSub(mid); |
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// rk2=K6 |
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rk[r + 2] = x[2] ^= l2(mid); |
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mid = x[0] ^ x[1] ^ x[2] ^ ck[r + 3]; |
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mid = byteSub(mid); |
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// rk3=K7 |
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rk[r + 3] = x[3] ^= l2(mid); |
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} |
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// cryptFla==0 为解密，解密时轮密钥使用顺序：rk31,rk30,...,rk0（逆序） |
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if (cryptFlag == DECRYPT) { |
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for (r = 0; r < 16; r++) { |
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mid = rk[r]; |
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rk[r] = rk[31 - r]; |
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rk[31 - r] = mid; |
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} |
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} |
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} |
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/** |
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* @description: 加解密的基础方法 |
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* @param: in（待输入的明文或密文） |
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* @param: inLen（16） |
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* @param: key（密钥） |
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* @param: out（待输出的密文或明文） |
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* @param: cryptFlag（加解密的判断条件） |
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* @return: int |
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*/ |
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private void sms4(byte[] in, int inLen, byte[] key, byte[] out, |
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int cryptFlag) { |
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int point = 0; |
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int[] roundKey = new int[ROUND]; |
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sms4KeyExt(key, roundKey, cryptFlag); |
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byte[] input; |
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byte[] output = new byte[16]; |
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while (inLen >= BLOCK) { |
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input = Arrays.copyOfRange(in, point, point + 16); |
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sms4Crypt(input, output, roundKey); |
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System.arraycopy(output, 0, out, point, BLOCK); |
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inLen -= BLOCK; |
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point += BLOCK; |
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} |
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} |
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/** |
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* @description: 明文加密 |
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* @param: plaintext（明文） |
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* @param: key（密钥） |
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* @return: byte[] |
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*/ |
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private static byte[] encodeSMS4(String plaintext, byte[] key) { |
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if (plaintext == null || "".equals(plaintext)) { |
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return null; |
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} |
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for (int i = plaintext.getBytes().length % 16; i < 16; i++) { |
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plaintext += '\0'; |
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} |
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return Sm4Utils.encodeSMS4(plaintext.getBytes(Charset.forName("utf-8")), key); |
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} |
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/** |
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* @description: 不限明文长度的SMS4加密 |
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* @param: plainText(明文) |
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* @param: key（密钥） |
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* @return: byte类型的明文加密结果 |
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*/ |
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private static byte[] encodeSMS4(byte[] plainText, byte[] key) { |
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byte[] ciphertext = new byte[plainText.length]; |
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int k = 0; |
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int plainLen = plainText.length; |
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while (k + 16 <= plainLen) { |
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byte[] cellPlain = new byte[16]; |
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for (int i = 0; i < 16; i++) { |
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cellPlain[i] = plainText[k + i]; |
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} |
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byte[] cellCipher = encode16(cellPlain, key); |
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for (int i = 0; i < cellCipher.length; i++) { |
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ciphertext[k + i] = cellCipher[i]; |
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} |
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k += 16; |
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} |
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return ciphertext; |
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} |
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/** |
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* @description: 不限密文长度的SMS4解密，获得byte类型的明文 |
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* @param: cipherText（密文） |
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* @param: key（密钥） |
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* @return: byte[] |
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*/ |
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private static byte[] decodeSMS4(byte[] cipherText, byte[] key) { |
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byte[] plaintext = new byte[cipherText.length]; |
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int k = 0; |
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int cipherLen = cipherText.length; |
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while (k + 16 <= cipherLen) { |
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byte[] cellCipher = new byte[16]; |
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for (int i = 0; i < 16; i++) { |
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cellCipher[i] = cipherText[k + i]; |
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} |
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byte[] cellPlain = decode16(cellCipher, key); |
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for (int i = 0; i < cellPlain.length; i++) { |
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plaintext[k + i] = cellPlain[i]; |
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} |
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k += 16; |
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} |
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return plaintext; |
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} |
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/** |
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* @description: 解密，获得明文字符串 |
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* @param: cipherText（密文） |
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* @param: key（密钥） |
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* @return: java.lang.String |
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*/ |
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public static String decodeSMS4toStr(byte[] cipherText, byte[] key) { |
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byte[] plaintext = new byte[cipherText.length]; |
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plaintext = decodeSMS4(cipherText, key); |
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// return new String(plaintext); |
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return new String(plaintext).replaceAll("\0", ""); |
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} |
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/** |
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* @description: 16位明文加密，得到密文 |
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* @param: plainText（明文） |
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* @param: key（密钥） |
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* @return: byte[] |
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*/ |
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private static byte[] encode16(byte[] plainText, byte[] key) { |
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byte[] cipher = new byte[16]; |
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Sm4Utils sm4 = new Sm4Utils(); |
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sm4.sms4(plainText, 16, key, cipher, ENCRYPT); |
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return cipher; |
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} |
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/** |
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* @description: 解密密文，返回字节类型的明文 |
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* @param: key |
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* @return: byte[] |
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*/ |
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private static byte[] decode16(byte[] ciphertext, byte[] key) { |
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byte[] plain = new byte[16]; |
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Sm4Utils sm4 = new Sm4Utils(); |
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sm4.sms4(ciphertext, 16, key, plain, DECRYPT); |
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return plain; |
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} |
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/** |
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* @description: 将16进制byte类型的密文转换为String字符串 |
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* @param: byteArray |
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* @return: java.lang.String |
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*/ |
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private static String toHexString(byte[] byteArray) { |
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if (byteArray == null || byteArray.length < 1) { |
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throw new IllegalArgumentException( |
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"this byteArray must not be null or empty"); |
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} |
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final StringBuilder hexString = new StringBuilder(); |
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for (int i = 0; i < byteArray.length; i++) { |
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if ((byteArray[i] & 0xff) < 0x10) { |
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hexString.append("0"); |
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} |
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hexString.append(Integer.toHexString(0xFF & byteArray[i])); |
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} |
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return hexString.toString().toLowerCase(); |
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} |
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private static byte[] hexStringToBytes(String hexString) { |
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if (hexString == null || hexString.equals("")) { |
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return null; |
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} |
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hexString = hexString.toUpperCase(); |
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int length = hexString.length() / 2; |
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char[] hexChars = hexString.toCharArray(); |
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byte[] d = new byte[length]; |
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for (int i = 0; i < length; i++) { |
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int pos = i * 2; |
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d[i] = (byte) (charToByte(hexChars[pos]) << 4 | charToByte(hexChars[pos + 1])); |
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} |
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return d; |
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} |
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private static byte charToByte(char c) { |
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return (byte) "0123456789ABCDEF".indexOf(c); |
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} |
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public static String encode(String plainText, String key) { |
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logger.debug("encode begin -------------{}, {}", plainText, key); |
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if (plainText == null || key == null) { |
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return null; |
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} |
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String des = toHexString(encodeSMS4(plainText, key.getBytes(Charset.forName("utf-8")))); |
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logger.debug("encode end -------------{}", des); |
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logger.debug("decode end -------------{}", decode(des, key)); |
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return des; |
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} |
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public static String decode(String enOut, String key) { |
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return decodeSMS4toStr(hexStringToBytes(enOut), key.getBytes()); |
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} |
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public static void main(String[] args) throws Exception { |
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String plainText = "704;;BASIC_CARDBLACKLISTUPLOAD_REQ_52_19700101080000001.json;;ErrorMsg;;业务校验失败:\n" + |
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"共有1项数据错误 \n" + |
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"ID:52011640230206431843,错误字段:type,错误值：4,错误信息： 对应解除的黑名单不存在！"; |
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System.out.println("待测试串:" + plainText); |
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String key = "F6pK9y&aNPvjqVBF"; |
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String res = encode(plainText, key); |
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System.out.println("加密结果:" + res); |
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res = "4063f23630187d6298023c2389f3f7fb842146ef401a7af01f7e96777d73a611050d0b13e785dc2ad63711127be2cbc3992184def07975efcf6cfc27b07af6b341c39deb95c4d0d39eda9b9c731c8864cfc8cf39c4cf4e10e7ece4f52d04d16d3db7985df7147b99e72b5ee7b28b51ae98c423c2e05dbe7203a4eb1d5acadb22647408d985db6a8d1210598b01b4fc88d9d2cc5bde6bbdc0ef995a4f5bfa6f74299b1c908bdd8d82581561140f9f63f00bd65af0a271906c588083f94a9aa364"; |
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System.out.println("\n解密结果:" + decode(res, key)); |
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// byte[] b = new byte[]{52, 48, 54, 51, 102, 50, 51, 54, 51, 48, 49, 56, 55, 100, 54, 50, 57, 56, 48, 50, 51, 99, 50, 51, 56, 57, 102, 51, 102, 55, 102, 98, 56, 52, 50, 49, 52, 54, 101, 102, 52, 48, 49, 97, 55, 97, 102, 48, 49, 102, 55, 101, 57, 54, 55, 55, 55, 100, 55, 51, 97, 54, 49, 49, 48, 53, 48, 100, 48, 98, 49, 51, 101, 55, 56, 53, 100, 99, 50, 97, 100, 54, 51, 55, 49, 49, 49, 50, 55, 98, 101, 50, 99, 98, 99, 51, 57, 57, 50, 49, 56, 52, 100, 101, 102, 48, 55, 57, 55, 53, 101, 102, 99, 102, 54, 99, 102, 99, 50, 55, 98, 48, 55, 97, 102, 54, 98, 51, 52, 49, 99, 51, 57, 100, 101, 98, 57, 53, 99, 52, 100, 48, 100, 51, 57, 101, 100, 97, 57, 98, 57, 99, 55, 51, 49, 99, 56, 56, 54, 52, 99, 102, 99, 56, 99, 102, 51, 57, 99, 52, 99, 102, 52, 101, 49, 48, 101, 55, 101, 99, 101, 52, 102, 53, 50, 100, 48, 52, 100, 49, 54, 100, 51, 100, 98, 55, 57, 56, 53, 100, 102, 55, 49, 52, 55, 98, 57, 57, 101, 55, 50, 98, 53, 101, 101, 55, 98, 50, 56, 98, 53, 49, 97, 101, 57, 56, 99, 52, 50, 51, 99, 50, 101, 48, 53, 100, 98, 101, 55, 50, 48, 51, 97, 52, 101, 98, 49, 100, 53, 97, 99, 97, 100, 98, 50, 50, 54, 52, 55, 52, 48, 56, 100, 57, 56, 53, 100, 98, 54, 97, 56, 100, 49, 50, 49, 48, 53, 57, 56, 98, 48, 49, 98, 52, 102, 99, 56, 56, 100, 57, 100, 50, 99, 99, 53, 98, 100, 101, 54, 98, 98, 100, 99, 48, 101, 102, 57, 57, 53, 97, 52, 102, 53, 98, 102, 97, 54, 102, 55, 52, 50, 57, 57, 98, 49, 99, 57, 48, 56, 98, 100, 100, 56, 100, 56, 50, 53, 56, 49, 53, 54, 49, 49, 52, 48, 102, 57, 102, 54, 51, 102, 48, 48, 98, 100, 54, 53, 97, 102, 48, 97, 50, 55, 49, 57, 48, 54, 99, 53, 56, 56, 48, 56, 51, 102, 57, 52, 97, 57, 97, 97, 51, 54, 52}; |
|
|
|
// |
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|
|
// |
|
|
|
// String a = new String(b); |
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|
// String str = decode("4063f23630187d6298023c2389f3f7fb842146ef401a7af01f7e96777d73a611050d0b13e785dc2ad63711127be2cbc3992184def07975efcf6cfc27b07af6b341c39deb95c4d0d39eda9b9c731c8864cfc8cf39c4cf4e10e7ece4f52d04d16d3db7985df7147b99e72b5ee7b28b51ae98c423c2e05dbe7203a4eb1d5acadb22647408d985db6a8d1210598b01b4fc88d9d2cc5bde6bbdc0ef995a4f5bfa6f74299b1c908bdd8d82581561140f9f63f00bd65af0a271906c588083f94a9aa364",key); |
|
|
|
// System.out.println("\n解密结果:" + str); |
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|
|
// String key = "qwe8542w"; |
|
|
|
// String aesRes = DesUtil.encode(plainText, Charset.forName("UTF-8"), |
|
|
|
// key); |
|
|
|
// System.out.println("加密结果:" + aesRes); |
|
|
|
// System.out.println("\n解密结果:" + DesUtil.decode(key, aesRes, |
|
|
|
// Charset.forName("UTF-8"))); |
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|
|
} |
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|
} |
HouYi
2 tygodni temu