Update crypto and json lib

[bentech]

Pull Request Checklist

Please confirm that you've done the following when opening a new pull request:

• For fixes and other improvements, please reference the GitHub issue that your change addresses.
• For fixes, optimizations and new features, please add an entry to the CHANGES.md file.
• Run mvn compile before committing, so that the auto-code formatter will format your changes consistently with the rest of the project.

This is an update to #130

Issue:
Fixes #129 #80

[andylintner]

This doesn't work for me - I am unable to complete pairing. Discussion in #130