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May 20, 2024 17:41
…es when devices are not connected
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User Authentication:
Added a password lock and a fingerprint lock for on-device authentication of the user using the local_auth package.
Ensured secure and seamless authentication methods to enhance user security.
Dependencies and Testing:
Updated all dependencies and packages to the latest versions.
Tested the app's functionality across multiple devices and platforms to ensure compatibility and stability.
RSA Encryption:
Implemented Public and Private Key Generation for secure communications.
Integrated RSA Encryption, and developed methods for encoding and parsing public/private keys to and from PEM format using libraries such as asn1lib, dart:typed_data, dart:convert, and pointycastle.
Stored primary and public keys securely using flutter_secure_storage ,sqflite and flutter_nearby_connections.
Shared public keys between users upon establishing a connection to ensure secure communication.
Implemented the storage and transmission of encrypted messages in global cache and sqflite tables, decrypting them with the user's private key.
Chat Functionality:
Improved the Chat Page UI by adding dates and chat bubbles to make it visually similar to WhatsApp chats. (bubble)
Developed a separate, clean UI for file viewing within the chat interface.
File Handling:
Completed the implementation of file viewing, which supports all file types.
Implemented secure file sharing and storing on device between users, ensuring that files are encrypted during transmission.(file_picker, open_filex, permission_handler, path_provider)
Began working on RSA encryption specifically for file sharing to further enhance security.
Additional Enhancements:
Conducted extensive testing and debugging to ensure the app's reliability and robustness.
Engaged in regular code reviews and optimizations to maintain code quality and performance.