最近 一个项目.net 要调用JAVA的WEB SERVICE,数据采用3DES加密,涉及到两种语言3DES一致性的问题,
下面分享一下,
这里的KEY采用Base64编码,便用分发,因为Java的Byte范围为-128至127,c#的Byte范围是0-255
核心是确定Mode和Padding,关于这两个的意思可以搜索3DES算法相关文章
一个是C#采用CBC Mode,PKCS7 Padding,Java采用CBC Mode,PKCS5Padding Padding,
另一个是C#采用ECB Mode,PKCS7 Padding,Java采用ECB Mode,PKCS5Padding Padding,
Java的ECB模式不需要IV
对字符加密时,双方采用的都是UTF-8编码

下面是C#代码

/// <summary>
/// DES3加密解密
/// </summary>
public class Des3
{
#region CBC模式** /// <summary>
/// DES3 CBC模式加密
/// </summary>
/// <param name="key">密钥</param>
/// <param name="iv">IV</param>
/// <param name="data">明文的byte数组</param>
/// <returns>密文的byte数组</returns>
public static byte[] Des3EncodeCBC( byte[] key, byte[] iv, byte[] data )
{
//复制于MSDN try
{
// Create a MemoryStream.
MemoryStream mStream = new MemoryStream(); TripleDESCryptoServiceProvider tdsp = new TripleDESCryptoServiceProvider();
tdsp.Mode = CipherMode.CBC; //默认值
tdsp.Padding = PaddingMode.PKCS7; //默认值 // Create a CryptoStream using the MemoryStream
// and the passed key and initialization vector (IV).
CryptoStream cStream = new CryptoStream( mStream,
tdsp.CreateEncryptor( key, iv ),
CryptoStreamMode.Write ); // Write the byte array to the crypto stream and flush it.
cStream.Write( data, 0, data.Length );
cStream.FlushFinalBlock(); // Get an array of bytes from the
// MemoryStream that holds the
// encrypted data.
byte[] ret = mStream.ToArray(); // Close the streams.
cStream.Close();
mStream.Close(); // Return the encrypted buffer.
return ret;
}
catch ( CryptographicException e )
{
Console.WriteLine( "A Cryptographic error occurred: {0}", e.Message );
return null;
}
} /// <summary>
/// DES3 CBC模式解密
/// </summary>
/// <param name="key">密钥</param>
/// <param name="iv">IV</param>
/// <param name="data">密文的byte数组</param>
/// <returns>明文的byte数组</returns>
public static byte[] Des3DecodeCBC( byte[] key, byte[] iv, byte[] data )
{
try
{
// Create a new MemoryStream using the passed
// array of encrypted data.
MemoryStream msDecrypt = new MemoryStream( data ); TripleDESCryptoServiceProvider tdsp = new TripleDESCryptoServiceProvider();
tdsp.Mode = CipherMode.CBC;
tdsp.Padding = PaddingMode.PKCS7; // Create a CryptoStream using the MemoryStream
// and the passed key and initialization vector (IV).
CryptoStream csDecrypt = new CryptoStream( msDecrypt,
tdsp.CreateDecryptor( key, iv ),
CryptoStreamMode.Read ); // Create buffer to hold the decrypted data.
byte[] fromEncrypt = new byte[data.Length]; // Read the decrypted data out of the crypto stream
// and place it into the temporary buffer.
csDecrypt.Read( fromEncrypt, 0, fromEncrypt.Length ); //Convert the buffer into a string and return it.
return fromEncrypt;
}
catch ( CryptographicException e )
{
Console.WriteLine( "A Cryptographic error occurred: {0}", e.Message );
return null;
}
} #endregion #region ECB模式 /// <summary>
/// DES3 ECB模式加密
/// </summary>
/// <param name="key">密钥</param>
/// <param name="iv">IV(当模式为ECB时,IV无用)</param>
/// <param name="str">明文的byte数组</param>
/// <returns>密文的byte数组</returns>
public static byte[] Des3EncodeECB( byte[] key, byte[] iv, byte[] data )
{
try
{
// Create a MemoryStream.
MemoryStream mStream = new MemoryStream(); TripleDESCryptoServiceProvider tdsp = new TripleDESCryptoServiceProvider();
tdsp.Mode = CipherMode.ECB;
tdsp.Padding = PaddingMode.PKCS7;
// Create a CryptoStream using the MemoryStream
// and the passed key and initialization vector (IV).
CryptoStream cStream = new CryptoStream( mStream,
tdsp.CreateEncryptor( key, iv ),
CryptoStreamMode.Write ); // Write the byte array to the crypto stream and flush it.
cStream.Write( data, 0, data.Length );
cStream.FlushFinalBlock(); // Get an array of bytes from the
// MemoryStream that holds the
// encrypted data.
byte[] ret = mStream.ToArray(); // Close the streams.
cStream.Close();
mStream.Close(); // Return the encrypted buffer.
return ret;
}
catch ( CryptographicException e )
{
Console.WriteLine( "A Cryptographic error occurred: {0}", e.Message );
return null;
} } /// <summary>
/// DES3 ECB模式解密
/// </summary>
/// <param name="key">密钥</param>
/// <param name="iv">IV(当模式为ECB时,IV无用)</param>
/// <param name="str">密文的byte数组</param>
/// <returns>明文的byte数组</returns>
public static byte[] Des3DecodeECB( byte[] key, byte[] iv, byte[] data )
{
try
{
// Create a new MemoryStream using the passed
// array of encrypted data.
MemoryStream msDecrypt = new MemoryStream( data ); TripleDESCryptoServiceProvider tdsp = new TripleDESCryptoServiceProvider();
tdsp.Mode = CipherMode.ECB;
tdsp.Padding = PaddingMode.PKCS7; // Create a CryptoStream using the MemoryStream
// and the passed key and initialization vector (IV).
CryptoStream csDecrypt = new CryptoStream( msDecrypt,
tdsp.CreateDecryptor( key, iv ),
CryptoStreamMode.Read ); // Create buffer to hold the decrypted data.
byte[] fromEncrypt = new byte[data.Length]; // Read the decrypted data out of the crypto stream
// and place it into the temporary buffer.
csDecrypt.Read( fromEncrypt, 0, fromEncrypt.Length ); //Convert the buffer into a string and return it.
return fromEncrypt;
}
catch ( CryptographicException e )
{
Console.WriteLine( "A Cryptographic error occurred: {0}", e.Message );
return null;
}
} #endregion /// <summary>
/// 类测试
/// </summary>
public static void Test()
{
System.Text.Encoding utf8 = System.Text.Encoding.UTF8; //key为abcdefghijklmnopqrstuvwx的Base64编码
byte[] key = Convert.FromBase64String( "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4" );
byte[] iv = new byte[] { 1, 2, 3, 4, 5, 6, 7, 8 }; //当模式为ECB时,IV无用
byte[] data = utf8.GetBytes( "中国ABCabc123" ); System.Console.WriteLine( "ECB模式:" );
byte[] str1 = Des3.Des3EncodeECB( key, iv, data );
byte[] str2 = Des3.Des3DecodeECB( key, iv, str1 );
System.Console.WriteLine( Convert.ToBase64String( str1 ) );
System.Console.WriteLine( System.Text.Encoding.UTF8.GetString( str2 ) ); System.Console.WriteLine(); System.Console.WriteLine( "CBC模式:" );
byte[] str3 = Des3.Des3EncodeCBC( key, iv, data );
byte[] str4 = Des3.Des3DecodeCBC( key, iv, str3 );
System.Console.WriteLine( Convert.ToBase64String( str3 ) );
System.Console.WriteLine( utf8.GetString( str4 ) ); System.Console.WriteLine(); } }

  接着是Java代码

import java.security.Key;

import javax.crypto.Cipher;
import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.DESedeKeySpec;
import javax.crypto.spec.IvParameterSpec; import sun.misc.BASE64Decoder;
import sun.misc.BASE64Encoder; public class Des3 {
public static void main(String[] args) throws Exception { byte[] key=new BASE64Decoder().decodeBuffer("YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4");
byte[] keyiv = { 1, 2, 3, 4, 5, 6, 7, 8 }; byte[] data="中国ABCabc123".getBytes("UTF-8"); System.out.println("ECB加密解密");
byte[] str3 = des3EncodeECB(key,data );
byte[] str4 = ees3DecodeECB(key, str3);
System.out.println(new BASE64Encoder().encode(str3));
System.out.println(new String(str4, "UTF-8")); System.out.println(); System.out.println("CBC加密解密");
byte[] str5 = des3EncodeCBC(key, keyiv, data);
byte[] str6 = des3DecodeCBC(key, keyiv, str5);
System.out.println(new BASE64Encoder().encode(str5));
System.out.println(new String(str6, "UTF-8")); } /**
* ECB加密,不要IV
* @param key 密钥
* @param data 明文
* @return Base64编码的密文
* @throws Exception
*/
public static byte[] des3EncodeECB(byte[] key, byte[] data)
throws Exception { Key deskey = null;
DESedeKeySpec spec = new DESedeKeySpec(key);
SecretKeyFactory keyfactory = SecretKeyFactory.getInstance("desede");
deskey = keyfactory.generateSecret(spec); Cipher cipher = Cipher.getInstance("desede" + "/ECB/PKCS5Padding"); cipher.init(Cipher.ENCRYPT_MODE, deskey);
byte[] bOut = cipher.doFinal(data); return bOut;
} /**
* ECB解密,不要IV
* @param key 密钥
* @param data Base64编码的密文
* @return 明文
* @throws Exception
*/
public static byte[] ees3DecodeECB(byte[] key, byte[] data)
throws Exception { Key deskey = null;
DESedeKeySpec spec = new DESedeKeySpec(key);
SecretKeyFactory keyfactory = SecretKeyFactory.getInstance("desede");
deskey = keyfactory.generateSecret(spec); Cipher cipher = Cipher.getInstance("desede" + "/ECB/PKCS5Padding"); cipher.init(Cipher.DECRYPT_MODE, deskey); byte[] bOut = cipher.doFinal(data); return bOut; } /**
* CBC加密
* @param key 密钥
* @param keyiv IV
* @param data 明文
* @return Base64编码的密文
* @throws Exception
*/
public static byte[] des3EncodeCBC(byte[] key, byte[] keyiv, byte[] data)
throws Exception { Key deskey = null;
DESedeKeySpec spec = new DESedeKeySpec(key);
SecretKeyFactory keyfactory = SecretKeyFactory.getInstance("desede");
deskey = keyfactory.generateSecret(spec); Cipher cipher = Cipher.getInstance("desede" + "/CBC/PKCS5Padding");
IvParameterSpec ips = new IvParameterSpec(keyiv);
cipher.init(Cipher.ENCRYPT_MODE, deskey, ips);
byte[] bOut = cipher.doFinal(data); return bOut;
} /**
* CBC解密
* @param key 密钥
* @param keyiv IV
* @param data Base64编码的密文
* @return 明文
* @throws Exception
*/
public static byte[] des3DecodeCBC(byte[] key, byte[] keyiv, byte[] data)
throws Exception { Key deskey = null;
DESedeKeySpec spec = new DESedeKeySpec(key);
SecretKeyFactory keyfactory = SecretKeyFactory.getInstance("desede");
deskey = keyfactory.generateSecret(spec); Cipher cipher = Cipher.getInstance("desede" + "/CBC/PKCS5Padding");
IvParameterSpec ips = new IvParameterSpec(keyiv); cipher.init(Cipher.DECRYPT_MODE, deskey, ips); byte[] bOut = cipher.doFinal(data); return bOut; } }

  

分享:JAVA和C# 3DES加密解密的更多相关文章

  1. JAVA和C# 3DES加密解密

    最近 一个项目.net 要调用JAVA的WEB SERVICE,数据采用3DES加密,涉及到两种语言3DES一致性的问题, 下面分享一下, 这里的KEY采用Base64编码,便用分发,因为Java的B ...

  2. Android: JAVA和C# 3DES加密解密

    最近 一个项目.net 要调用JAVA的WEB SERVICE,数据采用3DES加密,涉及到两种语言3DES一致性的问题,下面分享一下,这里的KEY采用Base64编码,便用分发,因为Java的Byt ...

  3. .NET与 java通用的3DES加密解密方法

    C#代码 private void button1_Click(object sender, EventArgs e) { string jiami = textBox1.Text; textBox2 ...

  4. 【推荐】JAVA基础◆浅谈3DES加密解密

    国内私募机构九鼎控股打造APP,来就送 20元现金领取地址:http://jdb.jiudingcapital.com/phone.html内部邀请码:C8E245J (不写邀请码,没有现金送)国内私 ...

  5. C# Java 3DES加密解密 扩展及修正\0 问题

    注: C#已亲测及做扩展, Java 部分未做验证 /// <summary> /// 3DES加密解密 /// ------------------------------------- ...

  6. iOS 3DES加密解密(一行代码搞定)

    3DES(或称为Triple DES)是三重数据加密算法(TDEA,Triple Data Encryption Algorithm)块密码的通称.它相当于是对每个数据块应用三次DES加密算法.由于计 ...

  7. 简进祥==iOS 3DES加密解密

    3DES(或称为Triple DES)是三重数据加密算法(TDEA,Triple Data Encryption Algorithm)块密码的通称.它相当于是对每个数据块应用三次DES加密算法.由于计 ...

  8. 3DES加密解密

    C#3DES加密解密,JAVA.PHP可用 using System; using System.Security.Cryptography; using System.Text; namespace ...

  9. java 与 c# 3des 加解密

    java 与 c# 3des 加解密   主要差异如下: 1.  对于待加密解密的数据,各自的填充模式不一样 C#的模式有:ANSIX923.ISO10126.None.PKCS7.Zero,而Jav ...

随机推荐

  1. ComicEnhancerPro 系列教程二十:用“文件比较”看有损、无损

    作者:马健邮箱:stronghorse_mj@hotmail.com 主页:http://www.comicer.com/stronghorse/ 发布:2017.07.23 教程二十:用“文件比较” ...

  2. SOA-WebService

    一.创建Web服务方法 在项目上右击选择新建项>>Web服务(ASMX),并命名,如MyWebService.asmx 二.注意事项 所有需要外界调用的方法上端均需增加特性[WebMeth ...

  3. 解决在cmder中bash(WSL)上下箭头不能使用问题

    有三种解决方式,第一种方式最简单实用 安装新版本wslbridge 这个解决方法最简单,最实用,下载第三方wslbridge,安装即可使用. 这时再进入cmder,运行bash.exe,可以发现上下左 ...

  4. constexpr函数------c++ primer

    constexpr函数是指能用于常量表达式的函数.定义constexpr函数的方法有其他函数类似,不过要遵循几项约定:函数的返回值类型及所以形参的类型都是字面值类型,而且函数体中必须有且只有一条ret ...

  5. CentOS6(CentOS7)设置静态IP 并且 能够上网

    链接原文:https://blog.csdn.net/u012453843/article/details/52839105 第一步:在网络连接下有VMnet1和VMnet8两个连接,其中VMnet1 ...

  6. win7 64位环境下,为python2.7 安装pip

    第一步: 安装python并配置好环境变量 参见:http://blog.csdn.net/donggege214/article/details/52062855 第二步: 下载setuptools ...

  7. 【ARC062F】 Painting Graphs with AtCoDeer 点双连通分量+polya定理

    Description 给定一张N点M边的无向图,每条边要染一个编号在1到K的颜色. 你可以对一张染色了的图进行若干次操作,每次操作形如,在图中选择一个简单环(即不经过相同点的环),并且将其颜色逆时针 ...

  8. The server of Apache (一)——apache服务的基本安装过程

    一.为了避免端口冲突,需要卸载linux系统中以RPM方式安装的httpd ~] # rpm -qa | grep httpd ~] # rpm -e httpd --nodeps (此处nodeps ...

  9. linux下配置apache多站点访问-小案例

    一级域名(baidu.com)也叫作顶级域名,注册一级域名是需要付费的. 而二级域名(image.baidu.com)是一级域名的延伸,所以只要购买了一级域名,二级域名是可以任意配置的. 其实(www ...

  10. C#中调用SAPI实现语音识别的2种方法

    通过微软的SAPI,不仅仅可以实现语音合成TTS,同样可以实现语音识别SR.下面我们就介绍并贴出相关代码.主要有两种方式: 1.使用COM组件技术,不管是C++,C#,Delphi都能玩的转,开发出来 ...