AESUtil
[java]?view plain?copy
package?com.zhuyun.aes;??
import?java.io.IOException;??
import?javax.crypto.Cipher;??
import?javax.crypto.KeyGenerator;??
import?javax.crypto.SecretKey;??
import?javax.crypto.spec.SecretKeySpec;??
import?sun.misc.BASE64Decoder;??
import?sun.misc.BASE64Encoder;??
public?class?AESUtil?{??
//生成AES秘鑰，然后Base64編碼??
public?static?String?genKeyAES()?throws?Exception{??
KeyGenerator?keyGen?=?KeyGenerator.getInstance("AES");??
keyGen.init(128);??
????????SecretKey?key?=?keyGen.generateKey();??
????????String?base64Str?=?byte2Base64(key.getEncoded());??
return?base64Str;??
????}??
//將Base64編碼后的AES秘鑰轉換成SecretKey對象??
public?static?SecretKey?loadKeyAES(String?base64Key)?throws?Exception{??
byte[]?bytes?=?base642Byte(base64Key);??
SecretKeySpec?key?=new?SecretKeySpec(bytes,?"AES");??
return?key;??
????}??
//字節(jié)數組轉Base64編碼??
public?static?String?byte2Base64(byte[]?bytes){??
BASE64Encoder?encoder?=new?BASE64Encoder();??
return?encoder.encode(bytes);??
????}??
//Base64編碼轉字節(jié)數組??
public?static?byte[]?base642Byte(String?base64Key)?throws?IOException{??
BASE64Decoder?decoder?=new?BASE64Decoder();??
return?decoder.decodeBuffer(base64Key);??
????}??
//加密??
public?static?byte[]?encryptAES(byte[]?source,?SecretKey?key)?throws?Exception{??
Cipher?cipher?=?Cipher.getInstance("AES");??
????????cipher.init(Cipher.ENCRYPT_MODE,?key);??
return?cipher.doFinal(source);??
????}??
//解密??
public?static?byte[]?decryptAES(byte[]?source,?SecretKey?key)?throws?Exception{??
Cipher?cipher?=?Cipher.getInstance("AES");??
????????cipher.init(Cipher.DECRYPT_MODE,?key);??
return?cipher.doFinal(source);??
????}??
}??
TestAES
[java]?view plain?copy
package?com.zhuyun.test;??
import?javax.crypto.SecretKey;??
import?org.junit.Test;??
import?com.zhuyun.aes.AESUtil;??
public?class?TestAES?{??
@Test??
public?void?testAES(){??
try?{??
//=================客戶端=================??
//hello,?i?am?infi,?good?night!加密??
String?message?="hello,?i?am?infi,?good?night!";??
//生成AES秘鑰特铝，并Base64編碼??
????????????String?base64Str?=?AESUtil.genKeyAES();??
System.out.println("AES秘鑰Base64編碼:"?+?base64Str);??
//將Base64編碼的字符串论悴，轉換成AES秘鑰??
????????????SecretKey?aesKey?=?AESUtil.loadKeyAES(base64Str);??
//加密??
byte[]?encryptAES?=?AESUtil.encryptAES(message.getBytes(),?aesKey);??
//加密后的內容Base64編碼??
????????????String?byte2Base64?=?AESUtil.byte2Base64(encryptAES);??
System.out.println("加密并Base64編碼的結果："?+?byte2Base64);??
//##############????網絡上傳輸的內容有Base64編碼后的秘鑰?和?Base64編碼加密后的內容??????#################??
//===================服務端================??
//將Base64編碼的字符串畴蹭，轉換成AES秘鑰??
????????????SecretKey?aesKey2?=?AESUtil.loadKeyAES(base64Str);??
//加密后的內容Base64解碼??
byte[]?base642Byte?=?AESUtil.base642Byte(byte2Base64);??
//解密??
byte[]?decryptAES?=?AESUtil.decryptAES(base642Byte,?aesKey2);??
//解密后的明文??
System.out.println("解密后的明文:?"?+?new?String(decryptAES));??
}catch?(Exception?e)?{??
????????????e.printStackTrace();??
????????}??
????}??
}??
測試結果為：
[java]?view plain?copy
AES秘鑰Base64編碼:UrlSOS8igqefseqoeJUwbg==??
加密并Base64編碼的結果：7QXSwDckiqIWz1SfpAG48++ex3Zcjv92Uhl5zppqjTQ=??
解密后的明文:?hello,?i?am?infi,?good?night!??
