SafeCoin: user-granularity safety on top of the Libra Blockchain

SafeCoin is a module built on top of the Libray Blockchain the move IR language that grants users a set of capabilities. It also defines a module that acts as a transferrable currency (SafeCoin) and a set of methods through an API that allows a user to access and store SafeCoin. Right now, SafeCoin works with a whitelist and blacklist capability, where one can send SafeCoins to a user iff the user is on the whitelist, as well as not on the blacklist.

SafeCoin is built on top of a malleable framework that could allow for many powerful extensions to it's core architecture - it was just a whim to begin with a whitelisting/blacklisting set of capabilities.

Currently, Libra doesn't allow modules to be published, which is why the source code for SafeCoin is run as a test.

Try and Run the Test

• Clone the Libra repository
• Follow the Libra README for how to compile and install it.
• Clone this repository
• Copy the SafeCoin source code located at src/SafeCoin.mvir in this repository, to the test folder in the Libra repository located at language/functional_tests/tests/testsuite/module/
• Execute the following command somewhere in the Libra repository: cargo test -p functional_tests SafeCoin