import hmac

import hashlib

# Derive the key from password using PBKDF2-HMAC-SHA256 with 10,000 iterations

password = b'my password 12345'

salt = b'my salt'

iterations = 1000000

key = hashlib.pbkdf2_hmac('sha256', password, salt, iterations)

# Create an HMAC object using the derived key and the message

message = b'my message'

hmac_obj = hmac.new(key, message, digestmod=hashlib.sha256)

print(hmac_obj)

# Get the HMAC as a bytes

hmac_bytes = hmac_obj.digest()

print(hmac_bytes)

# Save the hmac for later verification

expected_hmac = hmac_bytes

print(expected_hmac)

# Verify the HMAC

# Create a new HMAC object using the derived key and the message

# test with incorrect message

message=b'BLUE'

verify_hmac_obj = hmac.new(key, message, digestmod=hashlib.sha256)

# Get the HMAC as a bytes

verify_hmac_bytes = verify_hmac_obj.digest()