c#,Java aes加密
1.c#版本
/// <summary> /// Aes加密解密.c#版 /// </summary> public class BjfxEncryptHelper { /// <summary> /// 加密解密Key /// </summary> ////文档示例 public const string Key = "asjfasfaskjdlfljasjfsafsfsadfsdffds";/// <summary> /// AES加密 /// </summary> /// <param name="encryptStr">明文</param> /// <returns></returns> public static string Encrypt(string encryptStr) { return Encrypt(encryptStr, Key); } /// <summary> /// AES加密 /// </summary> /// <param name="encryptStr">明文</param> /// <param name="key">密钥</param> /// <returns></returns> public static string Encrypt(string encryptStr, string key) { byte[] keyArray = UTF8Encoding.UTF8.GetBytes(key); byte[] toEncryptArray = UTF8Encoding.UTF8.GetBytes(encryptStr); RijndaelManaged rDel = new RijndaelManaged(); rDel.Key = keyArray; rDel.Mode = CipherMode.ECB; rDel.Padding = PaddingMode.PKCS7; ICryptoTransform cTransform = rDel.CreateEncryptor(); byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length); return Convert.ToBase64String(resultArray, 0, resultArray.Length); } /// <summary> /// AES解密 /// </summary> /// <param name="decryptStr">密文</param> /// <param name="key">密钥</param> /// <returns></returns> public static string Decrypt(string decryptStr) { return Decrypt(decryptStr, Key); } /// <summary> /// AES解密 /// </summary> /// <param name="decryptStr">密文</param> /// <param name="key">密钥</param> /// <returns></returns> public static string Decrypt(string decryptStr, string key) { byte[] keyArray = UTF8Encoding.UTF8.GetBytes(key); byte[] toEncryptArray = Convert.FromBase64String(decryptStr); RijndaelManaged rDel = new RijndaelManaged(); rDel.Key = keyArray; rDel.Mode = CipherMode.ECB; rDel.Padding = PaddingMode.PKCS7; ICryptoTransform cTransform = rDel.CreateDecryptor(); byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length); return UTF8Encoding.UTF8.GetString(resultArray); } }
2.Java版本
import java.math.BigInteger;
import javax.crypto.Cipher;
import javax.crypto.KeyGenerator;
import javax.crypto.spec.SecretKeySpec;
import org.apache.commons.codec.binary.Base64;
import org.apache.commons.lang3.StringUtils;
import sun.misc.BASE64Decoder;
/**
*
*/
public class EncryptUtil {
/**
* 密钥
*/
private final String Key="asjfasfaskjdlfljasjfsafsfsadfsdffds";
/**
* 算法
*/
private final String Alogorithmstr= "AES/ECB/PKCS5Padding";
/**
* 密钥
*/
public String getKey() {
return Key;
}
/**
* 算法
*/
public String getAlogorithmstr() {
return Alogorithmstr;
}
/**
* aes解密
*
* @param encrypt 内容
* @return
* @throws Exception
*/
public String aesDecrypt(String encrypt) throws Exception {
return aesDecrypt(encrypt, Key);
}
/**
* aes加密
*
* @param content
* @return
* @throws Exception
*/
public String aesEncrypt(String content) throws Exception {
return aesEncrypt(content, Key);
}
/**
* 将byte[]转为各种进制的字符串
*
* @param bytes byte[]
* @param radix 可以转换进制的范围，从Character.MIN_RADIX到Character.MAX_RADIX，超出范围后变为10进制
* @return 转换后的字符串
*/
public String binary(byte[] bytes, int radix) {
return new BigInteger(1, bytes).toString(radix);// 这里的1代表正数
}
/**
* base 64 encode
*
* @param bytes 待编码的byte[]
* @return 编码后的base 64 code
*/
public String base64Encode(byte[] bytes) {
return Base64.encodeBase64String(bytes);
}
/**
* base 64 decode
*
* @param base64Code 待解码的base 64 code
* @return 解码后的byte[]
* @throws Exception
*/
public byte[] base64Decode(String base64Code) throws Exception {
return StringUtils.isEmpty(base64Code) ? null : new BASE64Decoder().decodeBuffer(base64Code);
}
/**
* AES加密
*
* @param content 待加密的内容
* @param encryptKey 加密密钥
* @return 加密后的byte[]
* @throws Exception
*/
public byte[] aesEncryptToBytes(String content, String encryptKey) throws Exception {
KeyGenerator kgen = KeyGenerator.getInstance("AES");
kgen.init(128);
Cipher cipher = Cipher.getInstance(Alogorithmstr);
cipher.init(Cipher.ENCRYPT_MODE, new SecretKeySpec(encryptKey.getBytes(), "AES"));
return cipher.doFinal(content.getBytes("utf-8"));
}
/**
* AES加密为base 64 code
*
* @param content 待加密的内容
* @param encryptKey 加密密钥
* @return 加密后的base 64 code
* @throws Exception
*/
public String aesEncrypt(String content, String encryptKey) throws Exception {
return base64Encode(aesEncryptToBytes(content, encryptKey));
}
/**
* AES解密
*
* @param encryptBytes 待解密的byte[]
* @param decryptKey 解密密钥
* @return 解密后的String
* @throws Exception
*/
public String aesDecryptByBytes(byte[] encryptBytes, String decryptKey) throws Exception {
KeyGenerator kgen = KeyGenerator.getInstance("AES");
kgen.init(128);
Cipher cipher = Cipher.getInstance(Alogorithmstr);
cipher.init(Cipher.DECRYPT_MODE, new SecretKeySpec(decryptKey.getBytes(), "AES"));
byte[] decryptBytes = cipher.doFinal(encryptBytes);
return new String(decryptBytes);
}
/**
* 将base 64 code AES解密
*
* @param encryptStr 待解密的base 64 code
* @param decryptKey 解密密钥
* @return 解密后的string
* @throws Exception
*/
public String aesDecrypt(String encryptStr, String decryptKey) throws Exception {
return StringUtils.isEmpty(encryptStr) ? null : aesDecryptByBytes(base64Decode(encryptStr), decryptKey);
}
}
java-pom.xml
引入如下依赖
<dependency>
<groupId>commons-codec</groupId>
<artifactId>commons-codec</artifactId>
<version>1.9</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.7</version>
</dependency>
3.测试
/// <summary> /// 测试加密解密 /// </summary> static void TestFxEncrypt() { string encryptStr, decryptStr; encryptStr = "测试数据看看看卡"; Console.WriteLine("============== 256位AES加密 ============\n"); Console.WriteLine("加密前：" + encryptStr); Console.WriteLine("密 钥：" + BjfxEncryptHelper.Key); Console.WriteLine(); decryptStr = BjfxEncryptHelper.Encrypt(encryptStr); Console.WriteLine("加密后：" + decryptStr); encryptStr = BjfxEncryptHelper.Decrypt(decryptStr); Console.WriteLine("解密后：" + encryptStr); //c#加密 //1:XtO1f0R4pCOhwLMKiku5+OWeBJTsTgzvSUb5fGQgoUM= //java加密 //2:XtO1f0R4pCOhwLMKiku5+OWeBJTsTgzvSUb5fGQgoUM= }
注意:
测试代码用到的密码与示例代码用的密钥不一致，真实的密钥的字符长度应为16位.
