82 lines
3.9 KiB
Markdown
82 lines
3.9 KiB
Markdown
# AIRA Android
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AIRA is peer-to-peer encrypted communication tool for local networks built on the [PSEC protocol](https://forge.chapril.org/hardcoresushi/PSEC). It allows to securely send text messages and files without any server or Internet access. AIRA automatically discovers and connects to other peers on your network, so you don't need any prior configuration to start communicating.
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Here is the Android version. You can find the original AIRA desktop version [here](https://forge.chapril.org/hardcoresushi/AIRA).
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<p align="center">
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<img alt="Screenshot of the main screen of AIRA-android, with Bob online and Angerfist and Barack Obama as contacts" src="https://forge.chapril.org/hardcoresushi/AIRA-android/raw/branch/master/screenshots/1.png" height="550"/>
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<img alt="Screenshot of a conversation between Alice and Bob about AIRA" src="https://forge.chapril.org/hardcoresushi/AIRA-android/raw/branch/master/screenshots/2.png" height="550"/>
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<img alt="Screenshot of the settings screen of AIRA-android" src="https://forge.chapril.org/hardcoresushi/AIRA-android/raw/branch/master/screenshots/3.png" height="550"/>
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</p>
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# Disclaimer
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AIRA is still under developement and is not ready for production usage yet. Not all features have been implemented and bugs are expected. Neither the code or the PSEC protocol received any security audit and therefore shouldn't be considered fully secure. AIRA is provided "as is", without any warranty of any kind.
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# Features
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- End-to-End encryption using the [PSEC protocol](https://forge.chapril.org/hardcoresushi/PSEC)
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- Automatic peer discovery using mDNS
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- Manual peer connection
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- File transferts
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- Notifications
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- Encrypted database
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- Contact verification
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- IPv4/v6 compatibility
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- Free/Libre and Open Source
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# Download
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AIRA releases are availables in the "Release" section. All APKs are signed with my PGP key available on keyservers. To download it:
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`gpg --keyserver hkps://keyserver.ubuntu.com --recv-keys AFE384344A45E13A` \
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Fingerprint: `B64E FE86 CEE1 D054 F082 1711 AFE3 8434 4A45 E13A` \
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Email: `Hardcore Sushi <hardcore.sushi@disroot.org>`
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Then, verify APK: `gpg --verify AIRA.apk.asc AIRA.apk`
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__Don't install the APK if the verification fails!__
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# Build
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### Install Rust
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AIRA android uses some code from the desktop version which is written in Rust. Therefore, you need to compile this Rust code first.
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```
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curl --proto '=https' --tlsv1.3 -sSf https://sh.rustup.rs | sh
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rustup target add aarch64-linux-android armv7-linux-androideabi x86_64-linux-android i686-linux-android
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```
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### Install NDK
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We also need the Android NDK to cross-compile the rust code to Android. Currently, only versions up to __r22b__ are supported. You can find instructions to install the NDK here: https://developer.android.com/ndk/guides
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Once installed, you need to define the `$ANDROID_NDK_HOME` environment variable (if not already set):
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```
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export ANDROID_NDK_HOME=/home/<user>/Android/SDK/ndk/<NDK version>"
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```
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### Download AIRA
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```
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git clone --depth=1 https://forge.chapril.org/hardcoresushi/AIRA-android.git && cd AIRA-android
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```
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### Verify commit
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```
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git verify-commit HEAD
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```
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### Build AIRA Rust code
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```
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cd app/src/main/native
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./build.sh
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```
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### Build final APK
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If you have AndroidStudio installed, you can just open the project directory and then start the build process. Otherwise, you can use Gradle from the command line:
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Generate a signed APK with your keystore:
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```
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# From the project root directory:
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./gradlew assembleRelease -Pandroid.injected.signing.store.file=<KEYFILE> -Pandroid.injected.signing.store.password=<STORE_PASSWORD> -Pandroid.injected.signing.key.alias=<KEY_ALIAS> -Pandroid.injected.signing.key.password=<KEY_PASSWORD>
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```
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Generate an unsigned APK:
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```
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./gradlew assembleRelease
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```
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Once completed, the APKs will be located under `app/build/outputs/apk/release/`.
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If you generate an unsigned APK you won't be able to install it as-is on your device. You will need to force install it with ADB:
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```
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adb install app-release-unsigned.apk
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```
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