Tuesday, April 1, 2014
TO STUDY HASH FUNCTIONS IN JAVA
package hashfn;
import java.util.*;
import java.security.MessageDigest;
public class Main {
/**
* @param args the command line arguments
*/
public static void main(String[] args)throws Exception {
Scanner sc=new Scanner(System.in);
String s;
System.out.println("Enter the string");
s=sc.nextLine();
MessageDigest md=MessageDigest.getInstance("MD5");
byte[] databytes=new byte[1024];
databytes=s.getBytes();
md.update(databytes);
byte[] mdbytes=md.digest();
StringBuffer hexString = new StringBuffer();
for (int i=0;i<mdbytes.length;i++) {
String hex=Integer.toHexString(0xff & mdbytes[i]);
if(hex.length()==1) hexString.append('0');
hexString.append(hex);
}
System.out.println(hexString);
}
}
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