分布式平台下的HS（High-Security） --对称加密

private static void secretDecrypt() throws Exception{
Cipher cipher2=Cipher.getInstance("PBEWithMD5AndDES");
SecretKey key2=SecretKeyFactory.getInstance("PBEWithMD5AndDES").generateSecret(new PBEKeySpec("123".toCharArray()));
PBEParameterSpec parameterspec=new PBEParameterSpec(new byte[]{1,2,3,4,5,6,7,8},1000);
cipher2.init(Cipher.DECRYPT_MODE,key2,parameterspec);
FileInputStream fisDat=new FileInputStream("zxx.dat");

byte[] src=new byte[fisDat.available()];
int len=fisDat.read(src);
int total=0;

while(total<src.length){
total+=len;
len=fisDat.read(src,total,src,length-total);
}
byte[] result=cipher2.doFinal(src);
fisDat.close();
System.out.println(new String(result));

}