Merge branch 'patch-1' into 'master'
Insert first draft of the web wallet spec from... See merge request grassrootseconomics/cic-docs!7
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# Title
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# CIC Wallet Infrastructure
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<!--
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valid status values are: Pre-draft|Draft|Proposal|Accepted
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* Authors: Firstname Lastname <email> (url)
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* Date: YYYY.MM.DD
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* Version: 1
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* Authors: Gustav Friis
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* Date: 2020.07.28
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* Version: 0.1
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* Status: Pre-draft
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## Rationale
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Why are you proposing this?
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## Before
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What is the current state of the described topic?
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## After
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How will things be different after this has been done?
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## Purpose
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## Implementation
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<!--
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Here is the description of how these changes should be implemented.
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Please use subheadings to improve readability.
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Some suggestions:
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Build a non-custodial wallet infrastructure designed to enable Kenyan end-users to use xDAI and / or Bloxberg blockchain based Community Inclusion Currencies (CICs) from a smartphone and / or desktop.
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### Workflow
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## Target group
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### Variables
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Existing or new Kenyan CIC end-users, who are individuals or small businesses using CICs to pay for goods and services. From the user-interviews with B4H we’ve found that these users are certainly not web3 savvy and to a varying degree are web2 savvy either. He/she just wants to interact with his/her wallet funds (displaying balance, paying & receiving) in the community currency (which value let's remember is equivalent to Kenyan Shilling).
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## User-stories
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- Get directed to web wallet via URL
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- Signing up
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- Choosing a reference currency
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- Displaying balance
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- Send payment to known contact
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- Send payment to unknown receiver (referral link)
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- Initiate payment by scanning QR code
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- Receive payment via QR code
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- Receive payment via link
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- Claim payment link
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- Payment notification
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- Transaction details
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- Transaction history overview
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- Cash in and out from CICs to M-Pesa
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**Settings including**
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- Backup wallet
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- Change base currency
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- Support
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- Social media
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- Sign out
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- Share with friends
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## Technical implementation
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### Wallet creation
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Using BIP39 HD and secp256k1
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### Wallet authentication and recovery
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Based on an open-source fork of Portis https://assets.portis.io/white-paper/latest.pdf, but instead of relying only on email as a string it can be any identifier which Grassroots Economica already has in place for its users.
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The current PoC implementation of this can be found here:
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https://github.com/multiplycharity/multiply-monorepo/tree/master/packages/sdk
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https://github.com/multiplycharity/multiply-monorepo/blob/master/packages/server/src/controllers/accounts.js
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From the Portis Whitepaper allowing SMS / Email / Password authenticated and recovery:
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“Portis lets users create an encryption key on their Client, so once they generate blockchain wallets on their devices, they will be able to encrypt them using said encryption key, and store the encrypted wallets on the Portis servers. All cryptographic keys are generated and managed by the user on their devices, and all encryption is done locally in the Client. Portis servers are never in the position of learning your cryptographic keys. When the already encrypted data travels between the user’s device and our servers, it is encrypted and authenticated by TLS. All of the user’s sensitive data is encrypted when they create their account using 64 random bytes generated on the Client, protected using a password that they select. Nobody on earth knows this password besides them as it never leaves the Client. Using a KDF algorithm, a Backup Recovery Phrase is derived from the password, to offer users a means of resetting their password in case they forget it.”
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### Interface with the existing Grassroots Economics Platform
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Existing USSD users
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Gas fees on xDAI
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AfricasTalking API
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### Claimable transactions
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Using the open-source Linkdrop SDK
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## Tech stack
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Expo
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React Native
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MongoDB
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Node.js
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## Portability
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Portability into native mobile apps and desktop apps following this pattern https://www.youtube.com/watch?v=ykBxY01j_rA
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## Future developments
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Migrate to Gnosis Safe smart-contract wallet
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User facing decentralized exchange
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User facing on-the ground marketplace
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Native implementation of P2P platforms like Mylocalcrypto
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### Interface
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-->
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## Testing
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<!--
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Please describe what test vectors that are required for this implementation
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-->
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## Changelog
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<!--
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Please remember to describe every change to this document in the changelog using
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serial number:
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* version 1:
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-->
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