The Spark2 is a cryptographic implant with AES keys. It’s allows authentication to login into different services, this forum, WordPress, the VivoKey forum etc… It also has the ability to be scanned by a 3rd party to access a business card that looks like this.
No chip currently will do payments unless you get a custom piece done. The Apex line coming out in the next couple months will have future support for payments, pgp signing and pretty much anything you can hack together in a Java Applet.
Take a read through the forum a bit more decide what your specific use case is, what kind of doors are you trying to access?? MiFare 1k, is it UID based does it require a DESFire card? Or am I using it to store my boarding passes on or a cold storage wallet backup for my cryptocurrency?
Each implant from DT is inherently different, different frequency different ISO different crypto ability.
Currently I use my chips to unlock my car and house door when I’m in town. I also hold a cold storage wallet in my hand as backup. I use my spark to access this forum and the VivoKey forum as well as my WordPress login. When I travel which is every other week, I store my boarding pass/train pass on my hand for easy indexing. I don’t have to finick with finding screen shots or opening emails to find boarding passes. Out in public others can scan my Spark2 and access my website, and some other hyperlinks attached to it. The Spark line will also be opening up further hopefully once the Apex line comes out.
Welcome to the forum and I can’t wait to hear what your end goal is?!?