Generate and validate license keys.

This was originally written while DropPy was a commercial app and Fastspring was used to purchase licenses.

Now the app open source, so I don't need this any more. Feel free to use, probably generate your own DSA keys though.

Info:

• OpenSSL is already installed on macOS
• These are 512bit DSA keys

Ran the following commands in this order:

• openssl dsaparam -out dsaparam.pem 512
• openssl gendsa -out privkey.pem dsaparam.pem
• openssl dsa -in privkey.pem -pubout -out pubkey.pem

Documentation:

• https://github.com/glebd/cocoafob/readme.md
• Section "Generating Keys"

Came out with those three files:

• dsaparam.pem
• privkey.pem
• pubkey.pem

• Cloned the repo at https://github.com/glebd/cocoafob on 2017-09-20
• Not very active, the last commit was 2 years ago
• Used the files from there (subfolder "swift3/CocoaFob")
• A zip of the repo at that point in time is stored in "Resources"

• I could not get this to run on my machine (macOS 10.12, Xcode 9)
• So I built my own version