from ayx import Alteryx
import hmac
import hashlib
def hmac_sha256(key, message):
"""Generates an HMAC SHA256 signature for the given message and key."""
# Ensure the key and message are in bytes format
if isinstance(key, str):
key = key.encode('utf-8')
if isinstance(message, str):
message = message.encode('utf-8')
return hmac.new(key, message, hashlib.sha256).hexdigest()
def verify_hmac_sha256(message, key, signature):
"""Verifies an HMAC SHA256 signature for a given message and key."""
# Compute the HMAC signature
computed_signature = hmac.new(
key.encode('utf-8'),
message.encode('utf-8'),
hashlib.sha256
).hexdigest()
# Compare the computed signature with the provided signature
return hmac.compare_digest(computed_signature, signature)
# Example usage
message = "Hello, world!"
key = "secret_key"
signature = hmac_sha256(key, message)
print(signature)
is_valid = verify_hmac_sha256(message, key, signature)
if is_valid:
print("Signature is valid.")
else:
print("Signature is not valid.")
