How can I hash a password in Java?

Question

I need to hash passwords for storage in a database. How can I do this in Java?

I was hoping to take the plain text password, add a random salt, then store the salt a

Answer 1

You could use Spring Security Crypto (has only 2 optional compile dependencies), which supports PBKDF2, BCrypt, SCrypt and Argon2 password encryption.

Argon2PasswordEncoder argon2PasswordEncoder = new Argon2PasswordEncoder();
String aCryptedPassword = argon2PasswordEncoder.encode("password");
boolean passwordIsValid = argon2PasswordEncoder.matches("password", aCryptedPassword);

SCryptPasswordEncoder sCryptPasswordEncoder = new SCryptPasswordEncoder();
String sCryptedPassword = sCryptPasswordEncoder.encode("password");
boolean passwordIsValid = sCryptPasswordEncoder.matches("password", sCryptedPassword);

BCryptPasswordEncoder bCryptPasswordEncoder = new BCryptPasswordEncoder();
String bCryptedPassword = bCryptPasswordEncoder.encode("password");
boolean passwordIsValid = bCryptPasswordEncoder.matches("password", bCryptedPassword);

Pbkdf2PasswordEncoder pbkdf2PasswordEncoder = new Pbkdf2PasswordEncoder();
String pbkdf2CryptedPassword = pbkdf2PasswordEncoder.encode("password");
boolean passwordIsValid = pbkdf2PasswordEncoder.matches("password", pbkdf2CryptedPassword);