Walmart Encryption

[bsap-git]

First time posting on Github, appears the project is dead, but came across it working on my own. Maybe someone here can answer a couple questions or direct me to the new community. (all links seem invalid)

I don't know Python, but it looks like walmart.py is just making plain requests against their API. Reading tells me they locked it down. This was my next approach. Is that what was happening?

Second, more importantly, walmart_encryption.py: what is this and how did you get it? It looks like it's used to encrypt card data before submitting? Is it proprietary?