Package util

Class PasswordUtil

java.lang.Object

util.PasswordUtil

public class PasswordUtil
extends Object

Utility class for password hashing and verification Uses SHA-256 with salt for secure password storage

Author:

TAMIL MUGHILAN

Constructor Summary

Constructors

Constructor	Description
PasswordUtil()

Method Summary

Modifier and Type	Method	Description
static String	generateSalt()	Generates a secure random salt.
static String	hashPassword(String password, String salt)	Hashes a password using SHA-256 with the provided salt.
static boolean	verifyPassword(String password, String salt, String hashedPassword)	Verifies if a password matches the stored hash.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

PasswordUtil

public PasswordUtil()

Method Details

hashPassword

public static String hashPassword(String password,
 String salt)

Hashes a password using SHA-256 with the provided salt.

Parameters:

password - the plain text password to hash

salt - the salt to use for hashing

Returns:

the hashed password as hexadecimal string

Throws:

RuntimeException - if SHA-256 algorithm is not available

generateSalt

public static String generateSalt()

Generates a secure random salt. Uses SecureRandom to generate 16 random bytes.

Returns:

the generated salt as hexadecimal string

verifyPassword

public static boolean verifyPassword(String password,
 String salt,
 String hashedPassword)

Verifies if a password matches the stored hash. Hashes the provided password with salt and compares.

Parameters:

password - the plain text password to verify

salt - the salt used for the stored hash

hashedPassword - the stored hashed password

Returns:

true if password matches, false otherwise