MD5 Hashing Example Using Java by www.gitarani.com

MD5 is a widely used hashing algorithm in many industries. You can use following Example to get MD5 encrypted format of a string.

import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
 
public class MD5CheckSumExample 
{
    public static void main(String[] args)throws Exception
    {
     System.out.println("MD5 hash encrypted data of 67543 is "+generateMD5Hash("67543"));
    }
    public static String generateMD5Hash(String strToBeHashed) {
		MessageDigest md = null;
		try {
			md = MessageDigest.getInstance("MD5");
		} catch (NoSuchAlgorithmException nsae) {
			nsae.printStackTrace();
			throw new RuntimeException("Unable to MD5 MessageDigest");
		}
		if (md != null && strToBeHashed != null) {
			byte[] paramBytes = strToBeHashed.getBytes();
			byte[] digest = md.digest(paramBytes);
			StringBuffer sb = new StringBuffer();
			for (int i = 0; i < digest.length; i++) {
				sb.append(Integer.toString((digest[i] & 0xff) + 0x100, 16).substring(1));
			}
			System.out.println("Generated MD5 Hash String is "+sb.toString());
			return sb.toString();
		}
		System.out.println("MD5 Hash String could not be generated because md value is "+md+" and strToBeHashed value is "+strToBeHashed);
		return null;
	}
}