plsql实现DES对称加密 Java解密

grant   execute   on   dbms_crypto  to   xxx;  

function   encrypt_password(p_password  in   varchar2)  return   varchar2  is   

    v_key           varchar2(32) :=  'TucM2fYDaxnd1UeRL7HVvyshXvXaMKO9' ;  

    v_encrypted_raw RAW(256);  

  begin   

    v_encrypted_raw := dbms_crypto.Encrypt(src => UTL_RAW.CAST_TO_RAW(p_password),  

                                           typ => DBMS_CRYPTO.DES_CBC_PKCS5,  

                                           iv=>UTL_RAW.CAST_TO_RAW( '12345678' ),  

                                           key   => UTL_RAW.CAST_TO_RAW(v_key));  

    return   utl_raw.cast_to_varchar2(utl_encode.base64_encode(v_encrypted_raw));  

   end ;  

输入：zhengjianfeng  

输出：N8pbaNezTEJO34jIgJhUFg==  

import   javax.crypto.Cipher;  

import   javax.crypto.SecretKeyFactory;  

import   javax.crypto.spec.DESKeySpec;  

import   javax.crypto.spec.IvParameterSpec;  

import   java.security.Key;  

import   java.util.Base64;  

/** 

  * @Description: 

  * @author: jianfeng.zheng 

  * @since: 2021/2/20 12:12 上午 

  * @history: 1.2021/2/20 created by jianfeng.zheng 

  */   

public   class   DesDecryptDemo {  

     private   final   static   String IV_PARAMETER =  "12345678" ;  

     private   static   final   String ALGORITHM =  "DES" ;  

     private   static   final   String CIPHER_ALGORITHM =  "DES/CBC/PKCS5Padding" ;  

     private   static   final   String CHARSET =  "utf-8" ;  

     private   static   final   String KEY =  "TucM2fYDaxnd1UeRL7HVvyshXvXaMKO9" ;  

     public   static   void   main(String[] args) {  

         String encryptData =  "N8pbaNezTEJO34jIgJhUFg==" ;  

         System.out.println( "密文:"   + encryptData);  

         String plainText = decrypt(KEY, encryptData);  

         System.out.println( "明文:"   + plainText);  

     }  

     public   static   String decrypt(String key, String data) {  

         if   (key ==  null   || key.length() <  8 ) {  

             throw   new   RuntimeException( "加密失败，key不能小于8位" );  

         }  

         if   (data ==  null ) {  

             return   null ;  

         }  

         try   {  

             DESKeySpec dks =  new   DESKeySpec(key.getBytes(CHARSET));  

             SecretKeyFactory keyFactory = SecretKeyFactory.getInstance(ALGORITHM);  

             Key secretKey = keyFactory.generateSecret(dks);  

             Cipher cipher = Cipher.getInstance(CIPHER_ALGORITHM);  

             //设置始化向量  

             IvParameterSpec iv =  new   IvParameterSpec(IV_PARAMETER.getBytes(CHARSET));  

             cipher.init(Cipher.DECRYPT_MODE, secretKey, iv);  

             return   new   String(cipher.doFinal(Base64.getDecoder().decode(data.getBytes(CHARSET))), CHARSET);  

         }  catch   (Exception e) {  

             e.printStackTrace();  

             return   data;  

         }  

     }  

}  

密文:N8pbaNezTEJO34jIgJhUFg==  

明文:zhengjianfeng