文件列表:

android/
ios/
src/
.babelrc
.buckconfig
.flowconfig
.watchmanconfig
App.test.js
app.json
index.js
package.json
tsconfig.json
tslint.json

# Passage instant messenger Alternative name: Telechat Logo: passenger pigeon or cat ## Introduction Passage IM is an open source distributed & decentralized instant messaging android application. It is written in typescript and relies on react-native. Its communications are end-to-end encrypted using the libsignal protocol. The software should be accessible and very easy to use as well as fun. ### Functionalities * The same account should be accessible from multiple devices (a la telegram) * Group conversations * GIFs support ## Usage Upon first firing the app, the user will be invited to generate a unique RSA key pair used an identifiant on the network. this will translate into a text id as well as a QR code that the user can safely use over the network. ## Technical description ### Authentication on the network Upon firing the app for the time, a pair of private/public keys as well as a hash ID of the public key will be created. the hash ID will then be used as the address/id of the node on the network. Phone numbers should not be used as means of identification. ### Peer discovery Peer discovery (or bootstrapping node) will be in a first time designed around a peer discovery server. Each node upon getting online will announce itself to the CENTRAL peer discover server by sending its current address and port alongside a timestamp. #### LAN discovery Before attempting to find peers over the internet, passage will first attempt to find node over the LAN network. ### Direct/synchronous communication between nodes If node A wants to communicate to node B and they are both available at the same time on the network, they will be able to communicate directly to each other via TCP using end-to-end encryption. ### Indirect/asynchronous communication between nodes If user A wants to communicate with user B, however the latter is currently not online, we will rely on a distributed hash table (DHT) storing the encrypted sent message on the network via a key value store, the key will in this case be the public key of the recipient of the message (in this case user B). Upon joining the network user B will broadcast a message, looking for any new message addressed to him, and crawl through the network until retrieving the targeted message. Once the message has been retrieved, it will be deleted from the network and decrypted by user B. ## Technical stack ### Storage Local storage of messages, dht nodes, groups... should be stored in a SQLite database. ### GIT Repositories * `passage-core`: Decentralized and distributed messaging protocol written in Typescript * `passage-mobile`: React native mobile application for android & ios * `passage-web`: Web browser client * `passage-desktop`:Cross platform desktop client written in electron.js * `passage-networking`: Set of low level android & ios rect-native API for networking (TCP/UDP/NsdManager)

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