BrowserWalletBridge

This Java project lets a user sign cryptocurrency transactions with a browser wallet extension from a desktop software. It starts an embedded HttpServer and start users browser to send requests to a browser wallet extension.

Currently implemented Wallets are:

• [XRPL] Crossmark
• [XRPL] GemWallet
• [Ethereum] MetaMask

Steps to use this code

See Main.java for a simple example.

Hints

• EmbeddedServer.java runs temporary a HttpServer on 127.0.0.1 listening on port 58905. Use setPort() to use another port before starting the server.
• For every wallet extension a specific html file located in /resources/browserwalletbridge/ is served.
• payload ("tx") is a Base64 encoded json. Its structure is specific for a wallet extension.
• Sent amount "amt" and currency "ccy" are used to better usability