Weiß jemand wie ich den Folgenden Fehler des unteren Codes beheben kann?
Code:
Exception in thread "main" java.security.NoSuchAlgorithmException: Cannot find any provider supporting DES/CBC/PKCS5Padding
at javax.crypto.Cipher.getInstance(DashoA13*..)
at com.tutego.security.crypto.ReadWriteDES.encode(ReadWriteDES.java:14)
at com.tutego.security.crypto.ReadWriteDES.main(ReadWriteDES.java:47)
Java Result: 1
Code:
package com.tutego.security.crypto;
import java.io.*;
import java.security.Key;
import javax.crypto.*;
import javax.crypto.spec.SecretKeySpec;
import sun.misc.*;
public class ReadWriteDES
{
static void encode( byte[] bytes, OutputStream out, String pass ) throws Exception
{
Cipher c = Cipher.getInstance( "DES/CBC/PKCS5Padding" );
Key k = new SecretKeySpec( pass.getBytes(), "DES/CBC/PKCS5Padding");
c.init( Cipher.ENCRYPT_MODE, k );
OutputStream cos = new CipherOutputStream( out, c );
cos.write( bytes );
cos.close();
}
static byte[] decode( InputStream is, String pass ) throws Exception
{
Cipher c = Cipher.getInstance( "DES/CBC/PKCS5Padding");
Key k = new SecretKeySpec( pass.getBytes(), "DES/CBC/PKCS5Padding" );
c.init( Cipher.DECRYPT_MODE, k );
ByteArrayOutputStream bos = new ByteArrayOutputStream();
CipherInputStream cis = new CipherInputStream( is, c );
int b = 0;
while((b = cis.read()) != -1) {
bos.write( b );
}
cis.close();
return bos.toByteArray();
}
public static void main( String[] args ) throws Exception
{
ByteArrayOutputStream out = new ByteArrayOutputStream();
encode( "Das wird anders werden".getBytes(), out, "01234567" );
String s = new BASE64Encoder().encode( out.toByteArray() );
System.out.println( s ); // qJYN+8Hd5dXsgMl1akQnw4iCbRN3EUbK
byte[] decode = new BASE64Decoder().decodeBuffer( s );
InputStream is = new ByteArrayInputStream( decode );
System.out.println( new String( decode( is, "01234567" ) ) );
}
}
