JSP中的解密
如何（使用JavaServerPages）解密用PL/SQL加密的数据JSP中的解密,jsp,oracle10g,encryption,Jsp,Oracle10g,Encryption,如何（使用JavaServerPages）解密用PL/SQL加密的数据 dbms_obfuscation_toolkit.DESEncrypt 钥匙是已知的。我是JSP新手，所以请解释您的答案。此加密方法dbms\u obfusation\u工具包。DESEncrypt允许您拥有密码或仅以8个字符的倍数说出密码字符串。下面我编写了一个示例JSP页面，它向您显示一个字符串是加密和解密的 先决条件：此代码使用库org.apache.commons.codec.binary，下载org.apache
dbms_obfuscation_toolkit.DESEncrypt
钥匙是已知的。我是JSP新手，所以请解释您的答案。此加密方法
dbms\u obfusation\u工具包。DESEncrypt<%@ page import="java.io.*" %>
<%@ page import="java.security.*" %>
<%@ page import="javax.crypto.*" %>
<%@ page import="javax.crypto.spec.*" %>
<%@ page import="java.lang.*" %>
<%@ page import="org.apache.commons.codec.binary.*" %>
<HTML>
<HEAD>
<TITLE> Cheers! </TITLE>
</HEAD>
<BODY>
<%
String algorithm1 = "DES";//magical mystery constant
String algorithm2 = "DES/CBC/NoPadding";//magical mystery constant
IvParameterSpec iv = new IvParameterSpec( new byte [] { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } );//magical mystery constant
Cipher cipher;
SecretKey key;
String k="12345abc"; //Just a random pick for testing
key = new SecretKeySpec( k.getBytes("UTF-8"), algorithm1 );
cipher = Cipher.getInstance( algorithm2 );
String str="test4abc"; //Test String, 8 characters
cipher.init( Cipher.ENCRYPT_MODE, key, iv ); //normally you could leave out the IvParameterSpec argument, but not with Oracle
byte[] bytes=str.getBytes("UTF-8");
byte[] encrypted = cipher.doFinal( bytes );
String encoded = new String( Hex.encodeHex( encrypted ) );
out.println( "Encrypted/Encoded: \"" + encoded + "\"" );
cipher.init( Cipher.DECRYPT_MODE, key, iv );
//byte [] decoded = org.apache.commons.codec.binary.Hex.decodeHex( encoded.toCharArray( ) );
byte [] decoded = Hex.decodeHex( encoded.toCharArray( ) );
String decrypted = new String (cipher.doFinal( decoded ));
out.println("DECRYPTED: \"" + decrypted + "\"" );
}
%>
</BODY>
</HTML>
干杯