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package com.yihu.jw.healthCare.utils;
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import org.apache.commons.lang3.ArrayUtils;
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import java.io.IOException;
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import java.util.Arrays;
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/**
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* 国密算法SM4实现
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* @create 2019/8/7
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*/
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public class SM4 {
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public static final String key = "86C63180C2806ED1F47B859DE501215B";
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private static final int ENCRYPT=1;
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private static final int DECRYPT=0;
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public static final int ROUND=32;
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private static final int BLOCK=16;
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private static class SM4Holder{
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private static SM4 instance=new SM4();
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}
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public SM4(){
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}
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public static SM4 getInstance(){
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return SM4Holder.instance;
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}
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private byte[] Sbox={
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(byte) 0xd6,(byte) 0x90,(byte) 0xe9,(byte) 0xfe,(byte) 0xcc,(byte) 0xe1,0x3d,(byte) 0xb7,0x16,(byte) 0xb6,0x14,(byte) 0xc2,0x28,(byte) 0xfb,0x2c,0x05,
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0x2b,0x67,(byte) 0x9a,0x76,0x2a,(byte) 0xbe,0x04,(byte) 0xc3,(byte) 0xaa,0x44,0x13,0x26,0x49,(byte) 0x86,0x06,(byte) 0x99,
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(byte) 0x9c,0x42,0x50,(byte) 0xf4,(byte) 0x91,(byte) 0xef,(byte) 0x98,0x7a,0x33,0x54,0x0b,0x43,(byte) 0xed,(byte) 0xcf,(byte) 0xac,0x62,
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(byte) 0xe4,(byte) 0xb3,0x1c,(byte) 0xa9,(byte) 0xc9,0x08,(byte) 0xe8,(byte) 0x95,(byte) 0x80,(byte) 0xdf,(byte) 0x94,(byte) 0xfa,0x75,(byte) 0x8f,0x3f,(byte) 0xa6,
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0x47,0x07,(byte) 0xa7,(byte) 0xfc,(byte) 0xf3,0x73,0x17,(byte) 0xba,(byte) 0x83,0x59,0x3c,0x19,(byte) 0xe6,(byte) 0x85,0x4f,(byte) 0xa8,
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0x68,0x6b,(byte) 0x81,(byte) 0xb2,0x71,0x64,(byte) 0xda,(byte) 0x8b,(byte) 0xf8,(byte) 0xeb,0x0f,0x4b,0x70,0x56,(byte) 0x9d,0x35,
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0x1e,0x24,0x0e,0x5e,0x63,0x58,(byte) 0xd1,(byte) 0xa2,0x25,0x22,0x7c,0x3b,0x01,0x21,0x78,(byte) 0x87,
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(byte) 0xd4,0x00,0x46,0x57,(byte) 0x9f,(byte) 0xd3,0x27,0x52,0x4c,0x36,0x02,(byte) 0xe7,(byte) 0xa0,(byte) 0xc4,(byte) 0xc8,(byte) 0x9e,
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(byte) 0xea,(byte) 0xbf,(byte) 0x8a,(byte) 0xd2,0x40,(byte) 0xc7,0x38,(byte) 0xb5,(byte) 0xa3,(byte) 0xf7,(byte) 0xf2,(byte) 0xce,(byte) 0xf9,0x61,0x15,(byte) 0xa1,
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(byte) 0xe0,(byte) 0xae,0x5d,(byte) 0xa4,(byte) 0x9b,0x34,0x1a,0x55,(byte) 0xad,(byte) 0x93,0x32,0x30,(byte) 0xf5,(byte) 0x8c,(byte) 0xb1,(byte) 0xe3,
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0x1d,(byte) 0xf6,(byte) 0xe2,0x2e,(byte) 0x82,0x66,(byte) 0xca,0x60,(byte) 0xc0,0x29,0x23,(byte) 0xab,0x0d,0x53,0x4e,0x6f,
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(byte) 0xd5,(byte) 0xdb,0x37,0x45,(byte) 0xde,(byte) 0xfd,(byte) 0x8e,0x2f,0x03,(byte) 0xff,0x6a,0x72,0x6d,0x6c,0x5b,0x51,
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(byte) 0x8d,0x1b,(byte) 0xaf,(byte) 0x92,(byte) 0xbb,(byte) 0xdd,(byte) 0xbc,0x7f,0x11,(byte) 0xd9,0x5c,0x41,0x1f,0x10,0x5a,(byte) 0xd8,
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0x0a,(byte) 0xc1,0x31,(byte) 0x88,(byte) 0xa5,(byte) 0xcd,0x7b,(byte) 0xbd,0x2d,0x74,(byte) 0xd0,0x12,(byte) 0xb8,(byte) 0xe5,(byte) 0xb4,(byte) 0xb0,
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(byte) 0x89,0x69,(byte) 0x97,0x4a,0x0c,(byte) 0x96,0x77,0x7e,0x65,(byte) 0xb9,(byte) 0xf1,0x09,(byte) 0xc5,0x6e,(byte) 0xc6,(byte) 0x84,
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0x18,(byte) 0xf0,0x7d,(byte) 0xec,0x3a,(byte) 0xdc,0x4d,0x20,0x79,(byte) 0xee,0x5f,0x3e,(byte) 0xd7,(byte) 0xcb,0x39,0x48
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};
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private int[] CK={
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0x00070e15, 0x1c232a31, 0x383f464d, 0x545b6269,
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0x70777e85, 0x8c939aa1, 0xa8afb6bd, 0xc4cbd2d9,
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0xe0e7eef5, 0xfc030a11, 0x181f262d, 0x343b4249,
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0x50575e65, 0x6c737a81, 0x888f969d, 0xa4abb2b9,
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0xc0c7ced5, 0xdce3eaf1, 0xf8ff060d, 0x141b2229,
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0x30373e45, 0x4c535a61, 0x686f767d, 0x848b9299,
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0xa0a7aeb5, 0xbcc3cad1, 0xd8dfe6ed, 0xf4fb0209,
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0x10171e25, 0x2c333a41, 0x484f565d, 0x646b7279
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};
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private int Rotl(int x,int y)
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{
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return x<<y|x>>>(32-y);
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}
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private int ByteSub(int A)
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{
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return (Sbox[A>>>24&0xFF]&0xFF)<<24|(Sbox[A>>>16&0xFF]&0xFF)<<16|(Sbox[A>>>8&0xFF]&0xFF)<<8|(Sbox[A&0xFF]&0xFF);
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}
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private int L1(int B)
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{
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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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private int L2(int B)
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{
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return B^Rotl(B,13)^Rotl(B,23);
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}
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void SMS4Crypt(byte[] Input,byte[] Output,int[] rk)
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{
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int r,mid,x0,x1,x2,x3;
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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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{
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tmp[0]=Input[0+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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for(r=0;r<32;r+=4)
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{
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mid=x[1]^x[2]^x[3]^rk[r+0];
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mid=ByteSub(mid);
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x[0]=x[0]^L1(mid); //x4
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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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x[1]=x[1]^L1(mid); //x5
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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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x[2]=x[2]^L1(mid); //x6
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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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x[3]=x[3]^L1(mid); //x7
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}
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//Reverse
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for(int j=0;j<16;j+=4)
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{
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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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private void SMS4KeyExt(byte[] Key,int[] rk,int CryptFlag)
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{
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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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{
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tmp[0]=Key[0+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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}
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x[0]^=0xa3b1bac6;
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x[1]^=0x56aa3350;
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x[2]^=0x677d9197;
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x[3]^=0xb27022dc;
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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+0];
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mid=ByteSub(mid);
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rk[r+0]=x[0]^=L2(mid); //rk0=K4
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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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rk[r+1]=x[1]^=L2(mid); //rk1=K5
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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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rk[r+2]=x[2]^=L2(mid); //rk2=K6
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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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rk[r+3]=x[3]^=L2(mid); //rk3=K7
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}
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if(CryptFlag==DECRYPT)
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{
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for(r=0;r<16;r++)
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{
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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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public byte[] sms4(byte[] in,int inLen,byte[] key,int CryptFlag)
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{
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int point=0;
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int[] round_key=new int[ROUND];
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//int[] round_key={0};
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SMS4KeyExt(key,round_key,CryptFlag);
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byte[] input = new byte[16];
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byte[] output = new byte[16];
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byte[] out = new byte[16];
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while(inLen>=BLOCK)
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{
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input=Arrays.copyOfRange(in, point, point+16);
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SMS4Crypt(input,output,round_key);
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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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return out;
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}
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public String encode(String input,String key) throws IOException{
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byte[] b_input = input.getBytes("utf-8");
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byte[] b_key = new byte[16];
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byte[] bbs = key.getBytes("utf-8");
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if(bbs.length < 16){
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for(int i=0;i<bbs.length;i++){
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b_key[i] = bbs[i];
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}
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}else{
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b_key = bbs;
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}
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byte[] o = new byte[0];
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for(int i=0;i<b_input.length;i+=16){
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byte[] t = ArrayUtils.subarray(b_input, i, i+16);
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o = ArrayUtils.addAll(o, sms4(t,16,b_key,1));
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}
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return new sun.misc.BASE64Encoder().encode(o);
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}
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public String decode(String input,String key) throws IOException{
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byte[] b_input = new sun.misc.BASE64Decoder().decodeBuffer(input);
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byte[] b_key = new byte[16];
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byte[] bbs = key.getBytes("utf-8");
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if(bbs.length < 16){
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for(int i=0;i<bbs.length;i++){
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b_key[i] = bbs[i];
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}
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}else{
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b_key = bbs;
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}
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byte[] o = new byte[0];
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for(int i=0;i<b_input.length;i+=16){
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byte[] t = ArrayUtils.subarray(b_input, i, i+16);
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byte[] t1 = sms4(t,16,b_key,0);
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o = ArrayUtils.addAll(o,t1);
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}
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return new String(o,"utf-8").trim();
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}
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public static void main(String[] args) {
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String md5 = MD5.md5("ee8b43dde7c94f0384fcbf4b4e589c74");//对密钥进行MD5
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String xmlStr="<?xml version=\"1.0\" encoding=\"GB2312\"?>\n" +
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"<Case>\n" +
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"\t\t<data>\n" +
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" <evaluation>\n" +
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"<!--评价信息UNID,用于关联评价整改反馈-->\n" +
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" <evaluateUnid>评价信息唯一码(评价信息unid)</evaluateUnid>\n" +
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" <apasInfoName>办件名称</apasInfoName>\n" +
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"<businessCode>省网事项编码</businessCode>\n" +
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"<serviceName>事项名称</serviceName>\n" +
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"<projectNo>办件申报号</ projectNo>\n" +
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" <!-- 1:pc端,2:移动端,3:二维码,4:政务大厅平板电脑,5:政务大厅其他终端),6:电话,7:短信 -->\n" +
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"<pf>评价渠道</pf>\n" +
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"<contactName>评价人姓名</contactName>\n" +
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"<contactMobile>评价人手机号码</contactMobile>\n" +
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"\t <isReceive>是否完成省网办办件汇聚</isReceive>\n" +
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"\t <regionCode> 6位行政区划编码</regionCode>\n" +
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" <!-- 第一次主动评价=1,追加评价=2 -->\n" +
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"\t <evaluateType>评价类型</evaluateType>\n" +
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"<alternate>整体满意度</alternate>\n" +
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"<appraisald>评价详情</appraisald>\n" +
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"<writingevalua>文字评价</writingevalua>\n" +
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"<assesstime>评价时间</assesstime>\n" +
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"<nodeName>环节名称</nodeName>\n" +
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"</evaluation>\n" +
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"</data>\n" +
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"</Case>";
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try {
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String str = new SM4().encode(xmlStr, md5);//sm4对数据加密
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System.out.println("加密后:"+str);
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} catch (Exception e) {
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}
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}
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}
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