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Auth & security at scale

OAuth2, JWT, IAM patterns, secrets rotation, and least-privilege service auth.

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How to mock Argon2 password hashing in Python

This code demonstrates a mock Argon2 password hasher using HMAC-SHA256 iterations, providing hash and verify methods that mimic Argon2's salted, iterated derivation.

password-hashing security argon2
Python 
import hashlib
import hmac
import os


class Argon2Mock:
    def __init__(self, salt_size=16, hash_len=32):
        self.salt_size = salt_size
        self.hash_len = hash_len
        
    def hash(self, password: str, salt: bytes = None) -> str:
        if salt is None:
            salt = os.urandom(self.salt_size)
 …
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