Encryption algorithm using (a): using CRC32 to compress 32uuid strings

CRC32 is higher than MD5 repetition rate,

However, we can still compress the 32-bit UUID string into a shorter shaped unique identity by using CRC32 and then turning the long shaping.

1 /**2      * 3 * @Title: Getcrc32value4      * @author: Liuyx5 * @date: November 6, 2015 PM 5:26:126 * @Description: Gets the string corresponding to the repetition probability of a smaller shape7      * @paramstr Incoming string8      * @return9      */Ten      Public Staticstring Getcrc32value (String str) { One          ACRC32 CRC32 =NewCRC32 (); - crc32.update (Str.getbytes ()); - System.out.println (Crc32.getvalue ()); the          -         /*str = str.replace ("-", "" "); - str = Str.replaceall ("[A-za-z]", ""); - if (str.length () >10) { + str = str.substring (Str.length () -10); - }else if (str.length () ==0) { + //string temp = long.tostring (System.currenttimemillis ()); A str = ""; at         }*/ -         returnlong.tostring (Crc32.getvalue ()); -}

Encryption algorithm using (a): using CRC32 to compress 32uuid strings