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Java SHA-256

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  • apramesh2014
     + 1 comment
    import java.io.*;
import java.util.*;
import java.security.*;
import java.nio.charset.*;


public class Solution {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String originalString = sc.nextLine();
        
        try {
            MessageDigest digest = MessageDigest.getInstance("SHA-256");
            byte[] encodedhash = digest.digest(
                originalString.getBytes(StandardCharsets.UTF_8));
            System.out.println(bytesToHex(encodedhash));
        }
        catch (NoSuchAlgorithmException e) {
            System.out.println(e);
        }
    }
    
    private static String bytesToHex(byte[] hash) {
        StringBuilder hexString = new StringBuilder(2 * hash.length);
        for (int i = 0; i < hash.length; i++) {
            String hex = Integer.toHexString(0xff & hash[i]);
            if(hex.length() == 1) {
                hexString.append('0');
            }
            hexString.append(hex);
        }
        return hexString.toString();
    }
}

  • revathiharry123
     + 0 comments

    import java.nio.charset.StandardCharsets; import java.math.BigInteger; import java.security.MessageDigest; import java.security.NoSuchAlgorithmException;

    public class Solution { public static void main(String[] args) { // Create a Scanner to read input from the user Scanner scanner = new Scanner(System.in);

        // Prompt the user to enter the input string

    String inputString = scanner.nextLine();

    // Compute the SHA-256 hash of the input string
    String hashValue = computeSHA_256Hash(inputString);

    // Print the hash value
    System.out.println( hashValue);
}

// Function to compute the SHA-256 hash of a given string
public static String computeSHA_256Hash(String input) {
    try {
        // Create a MessageDigest instance for SHA-256
        MessageDigest digest = MessageDigest.getInstance("SHA-256");

        // Update the digest with the input bytes
        digest.update(input.getBytes());

        // Compute the hash
        byte[] hashBytes = digest.digest();

        // Convert the hash bytes to a hexadecimal string
        StringBuilder hexString = new StringBuilder();
        for (byte b : hashBytes) {
            hexString.append(String.format("%02x", b));
        }

        // Return the hexadecimal string representation of the hash
        return hexString.toString();
    } catch (NoSuchAlgorithmException e) {
        // If the SHA-256 algorithm is not available, print an error message
        System.err.println("SHA-256 algorithm not available");
        e.printStackTrace();
        return null;
    }
}

    }

  • dhrumildave135
     + 0 comments

    The final HackerRank Challenge turned out to be the one where I only had to copy paste, there was no other way, Thank You @RodneyShag

  • shubhamdubey0312
     + 0 comments

    Complete solution in this website for this question. Java Java SHA-256 - Duplicate Words-hacker-rank-solution

    (https://digitwood.com/java-sha-256-hacker-rank-solution-digit-wood/)

  • shubhamdubey0312
     + 0 comments

    Complete solution in this website for this question. Java Java SHA-256 - Duplicate Words-hacker-rank-solution

    (https://digitwood.com/java-sha-256-hacker-rank-solution-digit-wood/)