package com.test;import java.io.UnsupportedEncodingException;import javax.crypto.Cipher;import javax.crypto.SecretKey;import javax.crypto.SecretKeyFactory;import javax.crypto.spec.DESKeySpec;public class DESUtil { /** * 加密以byte[]明文输入,byte[]密文输出 * * @param byteS * @return */ public static byte[] getEncCode( byte[] key,byte[] byteS) { byte[] byteFina = null; Cipher cipher; try { cipher = Cipher.getInstance("DES/ECB/Nopadding"); DESKeySpec desKey = new DESKeySpec(key); //创建一个密匙工厂，然后用它把DESKeySpec转换成 SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES"); SecretKey securekey = keyFactory.generateSecret(desKey); cipher.init(Cipher.ENCRYPT_MODE, securekey); byteFina = cipher.doFinal(byteS); } catch (Exception e) { throw new RuntimeException( "Error initializing SqlMap class. Cause: " + e); } finally { cipher = null; } return byteFina; } /** * 解密以byte[]密文输入,以byte[]明文输出 * * @param byteD * @return */ public static byte[] getDesCode(byte[] key,byte[] byteD) { Cipher cipher; byte[] byteFina = null; try { cipher = Cipher.getInstance("DES/ECB/Nopadding"); DESKeySpec desKey = new DESKeySpec(key); //创建一个密匙工厂，然后用它把DESKeySpec转换成 SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES"); SecretKey securekey = keyFactory.generateSecret(desKey); cipher.init(Cipher.DECRYPT_MODE, securekey); byteFina = cipher.doFinal(byteD); } catch (Exception e) { throw new RuntimeException( e); } finally { cipher = null; } return byteFina; } public static String bytes2HexString(byte[] b) { StringBuffer returnValue = new StringBuffer(); for (int i = 0; i < b.length; i++) { String hex = Integer.toHexString(b[i] & 0xFF); if (hex.length() == 1) { hex = '0' + hex; } returnValue.append(hex.toUpperCase()); } return "" + returnValue.toString() + ""; } public static byte[] hexStr2ByteArray(String hexString) { hexString = hexString.toLowerCase(); final byte[] byteArray = new byte[hexString.length() / 2]; int k = 0; for (int i = 0; i < byteArray.length; i++) { byte high = (byte) (Character.digit(hexString.charAt(k), 16) & 0xff); byte low = (byte) (Character.digit(hexString.charAt(k + 1), 16) & 0xff); byteArray[i] = (byte) (high << 4 | low); k += 2; } return byteArray; } //16进制加密，返回16进制数 public static String hexEnDes(String hexKey,String hexData){ byte[] encCode = getEncCode(hexStr2ByteArray(hexKey), hexStr2ByteArray(hexData)); return bytes2HexString(encCode); } //16进制加密，返回16进制数 public static byte[] EnDes(byte[] hexKey, byte[] hexData) { byte[] encCode = getEncCode(hexKey, hexData ); return encCode; } //异或 public static byte[] xor(byte[] dest, byte[] source, int size) { int i; byte[] a; byte[] b; a = dest; b = source; for (i = 0; i < size; i++) a[i] ^= b[i]; dest = a; return dest; } //生成MAC值 public static String GenMac(byte[] hexKey,byte[] sData){ byte[] cbuf= new byte[8+1]; byte[] dbuf= new byte[8]; int i=0, j=0; int datalen; byte[] smac= new byte[8]; System.out.println("工作密钥:"+bytes2HexString(hexKey) ); System.out.println("MABBUF:"+sData); if(sData.length%8 !=0 ) datalen=8-sData.length%8; else datalen=0; byte[] mabbuf= new byte[sData.length+datalen]; for(i=0; i<sData.length; i++ ) mabbuf[i]=sData[i]; System.out.println("datalen:"+datalen+", i:"+i+", j:"+j); if( datalen != 0 ) for(j=0; j<datalen; j++ ) { mabbuf[i+j]=' '; } System.out.println("新MABBUF"+ mabbuf +" 长度:"+mabbuf.length); for(i=0; i<mabbuf.length; ) { for(j=0; j<8; j++) dbuf[j]=mabbuf[i+j]; i=i+8; System.out.println("截取数据:"+bytes2HexString(dbuf)); if(i==8) dbuf=DESUtil.xor( dbuf ,cbuf, 8); else dbuf=DESUtil.xor( dbuf ,smac, 8); System.out.println("异或结果:"+bytes2HexString(dbuf)); smac=DESUtil.EnDes(hexKey, dbuf); System.out.println("加密结果:"+bytes2HexString(smac)); } System.out.println("生成的ＭＡＣ值:"+bytes2HexString(smac)); return bytes2HexString(smac); } public static String toHexString(byte[] b) { String str = ""; for (int i = 0; i < b.length; i++) { String hex = Integer.toHexString(b[i] & 0xFF); if (hex.length() == 1) { hex = '0' + hex; } System.out.print(hex.toUpperCase()); } return str; } public static void printHexString(String hint, byte[] b) { System.out.print(hint); for (int i = 0; i < b.length; i++) { String hex = Integer.toHexString(b[i] & 0xFF); if (hex.length() == 1) { hex = '0' + hex; } System.out.print(hex.toUpperCase() + " "); } System.out.println(""); } public static void main(String[] args) throws UnsupportedEncodingException { String Zmkey = "1111111111111111"; /*主密钥*/ String mwkey = "06B73E606452153C"; /*工作密钥密文*/ /*获取工作密钥明文*/ String key = bytes2HexString(getDesCode(hexStr2ByteArray(Zmkey), hexStr2ByteArray(mwkey) )); String data = "9882 20140823175518 2000056000 6212960101000654250 370113198906033265测试 00000000000000000000000023000029 9999 "; byte[] hexdata=data.getBytes( "gbk"); /*生成ＭＡＣ必须用工作密钥明文*/ System.out.println( GenMac( hexStr2ByteArray(key), hexdata) ); } }
public class EncryDes { /* 加密类 */ protected Cipher ecipher; /* 接密类 */ protected Cipher dcipher; public EncryDes() { try { // Create the key，"emosdnah"为随即初始化密文 String passPhrase = "emosdnah"; /* 生成秘钥 */ KeySpec keySpec = new DESKeySpec(passPhrase.getBytes()); SecretKey key = SecretKeyFactory.getInstance("DES").generateSecret( keySpec); // SecretKeySpec key = new // SecretKeySpec(passPhrase.getBytes(),"DES"); /* 初始化加解密实例 */ ecipher = Cipher.getInstance(key.getAlgorithm()); dcipher = Cipher.getInstance(key.getAlgorithm()); // Prepare the parameter to the ciphers // AlgorithmParameterSpec paramSpec = new PBEParameterSpec(salt, // iterationCount); // Create the ciphers ecipher.init(Cipher.ENCRYPT_MODE, key); dcipher.init(Cipher.DECRYPT_MODE, key); } catch (Exception e) { e.printStackTrace(); } } /** * 对字符串加密 * * @param source * String 要加密的字符串 * @return byte[] 已加密的字节 */ public byte[] encrypt(String source) { try { // Encode the string into bytes using utf-8 // byte[] utf8 = new sun.misc.BASE64Decoder().decodeBuffer(str); // Encrypt byte[] enc = ecipher.doFinal(source.getBytes()); // Encode bytes to base64 to get a string // return new sun.misc.BASE64Encoder().encode(enc); return enc; } catch (Exception e) { e.printStackTrace(); } return null; } /** * 对字节数组解密 * * @param buf * byte[] * @return String */ public String decrypt(byte[] buf) { try { // Decode base64 to get bytes // byte[] dec = new sun.misc.BASE64Decoder().decodeBuffer(str); // Decrypt byte[] utf8 = dcipher.doFinal(buf); // Decode using utf-8 // return new String(utf8, "UTF8"); return new String(utf8); } catch (javax.crypto.BadPaddingException e) { } catch (IllegalBlockSizeException e) { // } catch (UnsupportedEncodingException e) { } return null; } /** * 专用密码加密 * * @param password * String * @return String */ public String getEncPass(String password) { byte[] dst = encrypt(password + " ");// 密码补足十二位 String dstStr = ""; for (int i = 0; i < dst.length && i < 12; i++) {// 密文只取前64位 int cTmp = (int) dst[i] & 0xff; String hexStr = Integer.toHexString(cTmp); while (hexStr.length() < 2) { hexStr = "0" + hexStr; } dstStr += hexStr; } return dstStr.toUpperCase(); } public static void main(String []args){ EncryDes des = new EncryDes(); System.out.println(des.getEncPass("1234567890123")); }}
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