php 经3des 怎样兼容 java
1个回答
展开全部
例直接拿用
package com.nnff.des;
import java.security.Security;
import javax.crypto.Cipher;
import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;
/*字符串 DESede(3DES) 加密
* ECB模式/使用PKCS7式填充足位,目前给密钥192位
* 3DES(即Triple DES)DES向AES渡加密算(1999NIST3-DES指定渡
* 加密标准)DES更安全变形DES基本模块通组合组设计组加
* 密算其具体实现:设Ek()Dk()代表DES算加密解密程K代表DES算使用
* 密钥P代表明文C代表密表
* 3DES加密程:C=Ek3(Dk2(Ek1(P)))
* 3DES解密程:P=Dk1((EK2(Dk3(C)))
* */
public class ThreeDes {
/**
* @param argsjava调用sun公司提供3DES加密解密算需要使
* 用$JAVA_HOME/jre/lib/目录4jar包:
*jce.jar
*security/US_export_policy.jar
*security/local_policy.jar
*ext/sunjce_provider.jar
*/
private static final String Algorithm = "DESede"; //定义加密算,用 DES,DESede,Blowfish
//keybyte加密密钥度24字节
//src加密数据缓冲区(源)
public static byte[] encryptMode(byte[] keybyte,byte[] src){
try {
//密钥
SecretKey deskey = new SecretKeySpec(keybyte, Algorithm);
//加密
Cipher c1 = Cipher.getInstance(Algorithm);
c1.init(Cipher.ENCRYPT_MODE, deskey);
return c1.doFinal(src);//单面加密或解密
} catch (java.security.NoSuchAlgorithmException e1) {
// TODO: handle exception
e1.printStackTrace();
}catch(javax.crypto.NoSuchPaddingException e2){
e2.printStackTrace();
}catch(java.lang.Exception e3){
e3.printStackTrace();
}
return null;
}
//keybyte加密密钥度24字节
//src加密缓冲区
public static byte[] decryptMode(byte[] keybyte,byte[] src){
try {
//密钥
SecretKey deskey = new SecretKeySpec(keybyte, Algorithm);
//解密
Cipher c1 = Cipher.getInstance(Algorithm);
c1.init(Cipher.DECRYPT_MODE, deskey);
return c1.doFinal(src);
} catch (java.security.NoSuchAlgorithmException e1) {
// TODO: handle exception
e1.printStackTrace();
}catch(javax.crypto.NoSuchPaddingException e2){
e2.printStackTrace();
}catch(java.lang.Exception e3){
e3.printStackTrace();
}
return null;
}
//转换十六进制字符串
public static String byte2Hex(byte[] b){
String hs="";
String stmp="";
for(int n=0; n<b.length; n++){
stmp = (java.lang.Integer.toHexString(b[n]& 0XFF));
if(stmp.length()==1){
hs = hs + "0" + stmp;
}else{
hs = hs + stmp;
}
if(n<b.length-1)hs=hs+":";
}
return hs.toUpperCase();
}
public static void main(String[] args) {
// TODO Auto-generated method stub
//添加新安全算,用JCE要添加进
Security.addProvider(new com.sun.crypto.provider.SunJCE());
final byte[] keyBytes = {0x11, 0x22, 0x4F, 0x58,
(byte)0x88, 0x10, 0x40, 0x38, 0x28, 0x25, 0x79, 0x51,
(byte)0xCB,
(byte)0xDD, 0x55, 0x66, 0x77, 0x29, 0x74,
(byte)0x98, 0x30, 0x40, 0x36,
(byte)0xE2
}; //24字节密钥
String szSrc = "This is a 3DES test. 测试";
System.out.println("加密前字符串:" + szSrc);
byte[] encoded = encryptMode(keyBytes,szSrc.getBytes());
System.out.println("加密字符串:" + new String(encoded));
byte[] srcBytes = decryptMode(keyBytes,encoded);
System.out.println("解密字符串:" + (new String(srcBytes)));
}
}
-
package com.nnff.des;
import java.security.Security;
import javax.crypto.Cipher;
import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;
/*字符串 DESede(3DES) 加密
* ECB模式/使用PKCS7式填充足位,目前给密钥192位
* 3DES(即Triple DES)DES向AES渡加密算(1999NIST3-DES指定渡
* 加密标准)DES更安全变形DES基本模块通组合组设计组加
* 密算其具体实现:设Ek()Dk()代表DES算加密解密程K代表DES算使用
* 密钥P代表明文C代表密表
* 3DES加密程:C=Ek3(Dk2(Ek1(P)))
* 3DES解密程:P=Dk1((EK2(Dk3(C)))
* */
public class ThreeDes {
/**
* @param argsjava调用sun公司提供3DES加密解密算需要使
* 用$JAVA_HOME/jre/lib/目录4jar包:
*jce.jar
*security/US_export_policy.jar
*security/local_policy.jar
*ext/sunjce_provider.jar
*/
private static final String Algorithm = "DESede"; //定义加密算,用 DES,DESede,Blowfish
//keybyte加密密钥度24字节
//src加密数据缓冲区(源)
public static byte[] encryptMode(byte[] keybyte,byte[] src){
try {
//密钥
SecretKey deskey = new SecretKeySpec(keybyte, Algorithm);
//加密
Cipher c1 = Cipher.getInstance(Algorithm);
c1.init(Cipher.ENCRYPT_MODE, deskey);
return c1.doFinal(src);//单面加密或解密
} catch (java.security.NoSuchAlgorithmException e1) {
// TODO: handle exception
e1.printStackTrace();
}catch(javax.crypto.NoSuchPaddingException e2){
e2.printStackTrace();
}catch(java.lang.Exception e3){
e3.printStackTrace();
}
return null;
}
//keybyte加密密钥度24字节
//src加密缓冲区
public static byte[] decryptMode(byte[] keybyte,byte[] src){
try {
//密钥
SecretKey deskey = new SecretKeySpec(keybyte, Algorithm);
//解密
Cipher c1 = Cipher.getInstance(Algorithm);
c1.init(Cipher.DECRYPT_MODE, deskey);
return c1.doFinal(src);
} catch (java.security.NoSuchAlgorithmException e1) {
// TODO: handle exception
e1.printStackTrace();
}catch(javax.crypto.NoSuchPaddingException e2){
e2.printStackTrace();
}catch(java.lang.Exception e3){
e3.printStackTrace();
}
return null;
}
//转换十六进制字符串
public static String byte2Hex(byte[] b){
String hs="";
String stmp="";
for(int n=0; n<b.length; n++){
stmp = (java.lang.Integer.toHexString(b[n]& 0XFF));
if(stmp.length()==1){
hs = hs + "0" + stmp;
}else{
hs = hs + stmp;
}
if(n<b.length-1)hs=hs+":";
}
return hs.toUpperCase();
}
public static void main(String[] args) {
// TODO Auto-generated method stub
//添加新安全算,用JCE要添加进
Security.addProvider(new com.sun.crypto.provider.SunJCE());
final byte[] keyBytes = {0x11, 0x22, 0x4F, 0x58,
(byte)0x88, 0x10, 0x40, 0x38, 0x28, 0x25, 0x79, 0x51,
(byte)0xCB,
(byte)0xDD, 0x55, 0x66, 0x77, 0x29, 0x74,
(byte)0x98, 0x30, 0x40, 0x36,
(byte)0xE2
}; //24字节密钥
String szSrc = "This is a 3DES test. 测试";
System.out.println("加密前字符串:" + szSrc);
byte[] encoded = encryptMode(keyBytes,szSrc.getBytes());
System.out.println("加密字符串:" + new String(encoded));
byte[] srcBytes = decryptMode(keyBytes,encoded);
System.out.println("解密字符串:" + (new String(srcBytes)));
}
}
-
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