In -depth technical principles of the "PH verification" framework in the Java library

The PASSWORD Hashing framework is a framework for encryption and verification passwords in the Java class library to be widely used in order to protect the security of the user's password.This article will explore the technical principles of the PH verification framework and provide relevant Java code examples. 1. Introduction to PH verification framework The PH verification framework is based on the password hash function, converts the password to the hash code, and stores it in the database.When verifying the password, the framework will once again handle the input password and compare with the hash code in the database to determine whether the password is correct.In this way, even if the database leaks, the user's password cannot be obtained directly. 2. Working process of encrypted passwords The encryption password workflow of the PH verification framework can be divided into the following steps: -On a random salt value: salt value is a randomly generated string, which is used to increase the complexity of the hash code and improve the security of the password. -Chide the password and salt value to generate the original password: Mix the password entered by the user with the salt value to generate the original password. -E execution of hash algorithm: Use the hash algorithm to perform multiple iterative operations on the original password to generate the hash code. -Seamed hash code and salt value: store the generated hash code and salt value in the database. 3. Verify workflow of password The work process of the verification password of the PH verification framework can be divided into the following steps: -Cap the password entered by the user. -State the hash code and salt value from the database. -Chimid the password entered by the user to generate the verification password for verification. -Exical hash algorithm: Using the same hash algorithm and the same number of iteration times, do hash processing in the verification password, and generate the hash code for verification. -Cathe the generated verification hash code with the hash code in the database. If the same, the password verification is successful. 4. Java code example of the PH verification framework The following example code shows how to use the PH verification framework to encrypt and verify the password: import de.mkammerer.argon2.Argon2; import de.mkammerer.argon2.Argon2Factory; public class PasswordHashingExample { private static final int ITERATIONS = 10; private static final int MEMORY = 65536; private static final int PARALLELISM = 1; private static final int HASH_LENGTH = 32; public static String hashPassword(String password) { Argon2 argon2 = Argon2Factory.create(Argon2Factory.Argon2Types.ARGON2id); try { // generate random salt value String salt = generateSalt(); // Mix the password and salt value to generate the original password String originalPassword = password + salt; // Execute the hash algorithm String hashedPassword = argon2.hash(ITERATIONS, MEMORY, PARALLELISM, originalPassword.toCharArray(), HASH_LENGTH); // The password after returning to hash return salt + "$" + hashedPassword; } finally { argon2.wipeArray(password.toCharArray()); } } public static boolean verifyPassword(String password, String hashedPassword) { String[] parts = hashedPassword.split("\\$", 2); String salt = parts[0]; String storedPassword = parts[1]; Argon2 argon2 = Argon2Factory.create(Argon2Factory.Argon2Types.ARGON2id); try { // Mix the password and salt value to generate a password to verify String originalPassword = password + salt; // Execute the hash algorithm String hashedPasswordToVerify = argon2.hash(ITERATIONS, MEMORY, PARALLELISM, originalPassword.toCharArray(), HASH_LENGTH); // Compare the verification hash code and storage hash code return argon2.verify(hashedPasswordToVerify, storedPassword); } finally { argon2.wipeArray(password.toCharArray()); } } private static String generateSalt() { // The logic of generating random salt values // You can use Java's SecurityMom class to generate random salt values return "random_salt_value"; } public static void main(String[] args) { String password = "myPassword123"; // encryption password String hashedPassword = hashPassword(password); System.out.println("Hashed Password: " + hashedPassword); // verify password boolean isPasswordCorrect = verifyPassword(password, hashedPassword); System.out.println("Is Password Correct: " + isPasswordCorrect); } } Through the above example code, we can see the implementation principle of encryption and verification passwords of the PH verification framework.By using the Argon2 hash algorithm and combined with the mixed salt value, the PH verification framework can provide higher security and password protection capabilities.At the same time, the simple use interface of the frame also makes the integration of code simpler and efficient.