A customer of mine want to launch a payment system in 3rd world country based on crypto-currencies and the block-chain (for transaction) with no public mining and no public trading of the currency.

    - people can register online and get a wallet
    - install the app on the phone.
    - people would buy the currency using scratch cards
    - the seller would tablet / phone
    - the transaction will be done using qrCodes

I would like to have some feedback about this project especially the security aspect of the currency.