Notes

import hashlib

# In-memory user database (for demonstration purposes)
users = {
'[email protected]': hashlib.sha256('password123'.encode()).hexdigest(),
'[email protected]': hashlib.sha256('mysecurepassword'.encode()).hexdigest()
}

def hash_password(password):
"""Hashes a password using SHA-256."""
return hashlib.sha256(password.encode()).hexdigest()

def check_password(username, password):
"""Checks if the given password matches the stored hash for the user."""
hashed_password = hash_password(password)
stored_password = users.get(username)
return stored_password == hashed_password

def login(username, password):
"""Validates the username and password."""
if check_password(username, password):
print("Login successful!")
print(f"Email: {username}")
print(f"Hashed Password: {users[username]}")
else:
print("Incorrect details.")

# Sample usage
if __name__ == "__main__":
username = input("Enter your username: ")
password = input("Enter your password: ")
login(username, password)