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Enkra Send

Enkra Send is a Flutter-based software product that allows users to easily and securely transfer files between their phone and computer. With end-to-end encryption technology, users can be sure that their personal and sensitive documents are kept safe and private.

Features

  • Easy file transfer between phone and computer
  • End-to-end encryption for privacy and security
  • Simple and intuitive user interface

To use Enkra Send on the web, visit https://send.enkra.io and enjoy the service.

End to end encryption

Enkra Send employs the use of HPKE and XChacha20poly1305 to establish a secure file transmission channel. The cipher code is implemented entirely in Rust, a memory-safe language, to ensure that the implementation is secure and free from common memory-related vulnerabilities.

For auditor reviewing code, here are some specific files that you can focus on:

  • All the cipher code located in native/src/api.rs
  • The code that uses cipher located in lib/wait_to_pair.dart and lib/paired.dart:

Getting Started with Development

If you would like to contribute to the development of Enkra Send, follow these steps:

  1. Install the Flutter SDK according to the Flutter documentation.
  2. Install the Rust according to the Rust langugage documentation.
  3. flutter pub get
  4. flutter pub run build_runner build
  5. ./build_tools/build_web.sh
  6. flutter build web --dart-define ENKRA_API_URL=https://api.enkra.io --dart-define SEND_APP_URL=https://send.enkra.io
  7. ./build_tools/patch_web.sh

License

Enkra Send is released under the BSL 1.1. The software is free to use for non-commercial purposes. After the change date, the software will be released under the GNU General Public License Version 2 ("GPLv2").