Algorithm


Problem Name: Java MD5

Problem Link: https://www.hackerrank.com/challenges/java-md5/problem?isFullScreen=true

In this HackerRank Functions in Java programming problem solution,

MD5 (Message-Digest algorithm 5) is a widely-used cryptographic hash function with a 128-bit hash value. Here are some common uses for MD5:

  • To store a one-way hash of a password.
  • To provide some assurance that a transferred file has arrived intact.

MD5 is one in a series of message digest algorithms designed by Professor Ronald Rivest of MIT (Rivest, 1994 ); however, the security of MD5 has been severely compromised, most infamously by the Flame malware in 2012 . The CMU Software Engineering Institute essentially considers MD5 to be "cryptographically broken and unsuitable for further use". Given an alphanumeric string, s , denoting a password, compute and print its MD5 encryption value.

Input Format

A single alphanumeric string denoting s.

Constraints

  • 6 <= |s| <= 20
  • String s consists of English alphabetic letters (i.e., [a - zA - Z] and/or decimal digits (i.e., 0 through 9) only.

Output Format

Print the MD5 encryption value of

on a new line.

Sample Input 0

HelloWorld

Sample Output 0

68e109f0f40ca72a15e05cc22786f8e6

Sample Input 1

Javarmi123

Sample Output 1

2da2d1e0ce7b4951a858ed2d547ef485

 

 

 

Code Examples

#1 Code Example with Java Programming

Code - Java Programming


import java.util.Scanner;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

public class Solution {
    public static void main(String[] args) throws NoSuchAlgorithmException {
        /* Read and save the input String */
        Scanner scan = new Scanner(System.in);
        String str = scan.next();
        scan.close();
        
        /* Encode the String using MD5 */
        MessageDigest md = MessageDigest.getInstance("MD5");
        md.update(str.getBytes());
        byte[] digest = md.digest();
        
        /* Print the encoded value in hexadecimal */
        for (byte b : digest) {
            System.out.format("%02x", b);
        }
    }
}
Copy The Code & Try With Live Editor
Advertisements

Demonstration


Previous
[Solved] Java Lambda Expressions in Java solution in Hackerrank - Hacerrank solution Java
Next
[Solved] Java SHA-256 in Java solution in Hackerrank - Hacerrank solution Java