HMAC Encrypt

Hi All,

There used to be a tool for encrypting data using HMAC_SHA256, which I had downloaded previously from:

https://betagallery.alteryx.com/#!app/HMAC-Encrypt--Installer-/576326f1aa690a05284b2e7b

It looks like the gallery migrated to a new home on the Alteryx Gallery, but I can't find the above macro.

There is a CReW SHA256 encription tool, which I might be able to use instead (if I can figure out exactly how HMAC_SHA256 uses the encryption key) but it's a bit of a shame because the older tool did all the work for me.

Anyone have any ideas if the older HMAC_SHA256 tool is still available anywhere? (kicking myself for not saving a copy)

Thanks!

JamieH

Macros

Accepted answers

JoshML

Attached is the installer from the original https://gallery.alteryx.com/ link.

HMAC+Encrypt+[Installer].yxzp

All comments

KGT

I know the one you're talking about, but can't find it right now. So annoying when you know there is something out there, but just can't find it. If I have it on my home computer somewhere, then I'll come back and post it.

This link has a couple links for Alteryx encryption tools either built in C or using R Tool.

This tool was built a couple years ago by @MarqueeCrew & @grossal when the HMAC Encrypt macro couldn't be found.

This was the original link, but it's not working right now: https://gallery.alteryx.com/#!app/HMAC-Encrypt--Installer-/576326f1aa690a05284b2e7b

And another link with the code in it: https://community.alteryx.com/t5/Alteryx-Designer-Desktop-Discussions/SHA256-Hash-Base64-Encoding-Not-Matching/td-p/470089

apathetichell

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.")

JoshML

Attached is the installer from the original https://gallery.alteryx.com/ link.

HMAC+Encrypt+[Installer].yxzp

JamieHankins

Thank you!

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