The safest encryption algorithm (from the blog with less temperature)

Security | encryption | Algorithm in cryptography, there is an ideal encryption scheme, called a secret garbled this (one-time pad). One-time pad algorithm has the following requirements: 1, the key must be randomly generated 2, the key can not be reused 3, the key and the length of the cipher is the same. One-time pad is the safest encryption algorithm, the two sides once the security exchange of the key, the exchange of information after the process is absolutely safe. This algorithm has been used in a number of highly confidential occasions, it is said that the United States and the former Soviet Union hotline, the former Soviet spy are used one-time pad to encrypt the way. No matter how long the supercomputer works, no matter how many people, what methods and techniques, how much computing power, it is impossible to crack. A one-way implementation of a secret, as follows:public class onetimepadutil {    public static  Byte[] xor (byte[] bytes, byte[] keybytes)  {         if  (keybytes.length != bytes.length)  {             throw new illegalargumentexception ();         }        byte[] resultbytes = new  byte[bytes.length];        for  (int i = 0;  i < resultbytes.length; ++i) &NBSP;{&NBSP;&NBSP;&NBSP;&NBSP;&NBsp;       resultbytes[i] =  (Byte)   (keybytes[i] ^  Bytes[i]);        }         RETURN&NBSP;RESULTBYTES;&NBSP;&NBSP;&NBSP;&NBSP}} Use the example:string plaintext =  "temperature is less"; string keytext =  "Password"; byte[] plainbytes = plaintext.getbytes ();byte[]  Keybytes = keytext.getbytes (); assert plainbytes.length == keybytes.length;//encryption byte[]  cipherbytes = onetimepadutil.xor (plainbytes, keybytes)/Decrypt Byte[] cipherplainbytes  = onetimepadutil.xor (cipherbytes, keybytes);
This is the simplest encryption algorithm, but also the most secure secret algorithm. The day before yesterday and friends to discuss this issue, so wrote this article.