session-android/README.md
2021-05-24 10:11:01 +10:00

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# Session Android
[Download on the Google Play Store](https://getsession.org/android)
Add the [F-Droid repo](https://fdroid.getsession.org/)
[Grab the APK here](https://github.com/loki-project/session-android/releases/latest)
## Summary
Session integrates directly with [Oxen Service Nodes](https://docs.oxen.io/about-the-oxen-blockchain/oxen-service-nodes), which are a set of distributed, decentralized and Sybil resistant nodes. Service Nodes act as servers which store messages offline, and a set of nodes which allow for onion routing functionality obfuscating users' IP addresses. For a full understanding of how Session works, read the [Session Whitepaper](https://getsession.org/whitepaper).
![AndroidSession](https://i.imgur.com/0YC9TyI.png)
## Want to contribute? Found a bug or have a feature request?
Please search for any [existing issues](https://github.com/oxen-io/session-android/issues) that describe your bugs in order to avoid duplicate submissions. Submissions can be made by making a pull request to our `dev` branch. If you don't know where to start contributing, try reading the Github issues page for ideas.
## Build instructions
Build instructions can be found in [BUILDING.md](BUILDING.md).
## Verifing signatures
Get Kee's key and import it:
```
wget https://raw.githubusercontent.com/oxen-io/oxen-core/master/utils/gpg_keys/KeeJef.asc
gpg --import KeeJef.asc
```
Get the signed hash for this release, the SESSION_VERSION needs to be updated for the release you want to verify
```
export SESSION_VERSION=1.10.4
wget https://github.com/oxen-io/session-android/releases/download/$SESSION_VERSION/signatures.asc
```
Verify the signature of the hashes of the files
```
gpg --verify signatures.asc 2>&1 |grep "Good signature from"
```
The command above should print "`Good signature from "Kee Jefferys...`"
If it does, the hashes are valid but we still have to make the sure the signed hashes matches the downloaded files.
Make sure the two commands below returns the same hash.
If they do, files are valid.
```
sha256sum session-$SESSION_VERSION-universal.apk
grep universal.apk signatures.asc
```
## License
Copyright 2011 Whisper Systems
Copyright 2013-2017 Open Whisper Systems
Copyright 2019-2020 The Loki Project
Licensed under the GPLv3: http://www.gnu.org/licenses/gpl-3.0.html