SHA-256 and SHA-512 encryption algorithms

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Package cc.restyle.util;
Import Java.security.MessageDigest;

Import java.security.NoSuchAlgorithmException; /** * SHA-512 Encryption * */public class SHA512 {/** incoming text content, return SHA-256 String */public static string encry256 (final Strin
    G StrText) {return SHA (StrText, "SHA-256"); /** incoming text content, return SHA-512 String */public static string encry512 (final String strText) {return Sha (StrText, "Sha
    -512 ");
        }/** String sha encryption */private static string Sha (Final String strtext,final string strtype) {//return value

        String Strresult=null;
            Whether it is a valid string if (StrText! = null && strtext.length () >0) {///encrypt start, create encrypted object, and pass in the encryption type
                try {messagedigest messagedigest = messagedigest.getinstance (strtype);
                Incoming encrypted string messagedigest.update (Strtext.getbytes ());
                Get bytes type result byte[] Bytebuffer = Messagedigest.digest (); Convert byte to String
                StringBuffer strhexstring = new StringBuffer (); 
                    for (int i =0;i<bytebuffer.length;i++) {String hex = integer.tohexstring (0xFF & Bytebuffer[i]);
                    if (Hex.length () ==1) {strhexstring.append (' 0 ');
                } strhexstring.append (hex);


            }//Get the result returned strresult = Strhexstring.tostring ();
            } catch (NoSuchAlgorithmException e) {e.printstacktrace ();
    }} return strresult;
 }
}