txelectrum

Getting Started

This project is built from two parts:

1. Electrum plugin.
2. secp256k1 signer server.

Build and run the secp256k1 signer server & applet

We assume you have already installed DAL.

To run the TXE signer server, you have to complete the following steps:

1. Open the applet project in Eclipse. (Project directory ./txe/secp256k1_signer.)
2. Build the applet. (Press on the shield button with the play icon.)
3. Open the host project in Visual Studio. (Project directory ./txe/secp256k1_signer_server.)
4. Change the build configuration from Debug to Amulet.
5. Build and run the host. (Press the play button.)

Build and run the electrum TXE plugin

You have the following options to run the electrum TXE plugin:

• Build and run the repository's electrum.
• Use already installed electrum. (Note: it's not working on portable electrum.)

Build and run electrum

To bulid and run electrum, you have to complete the following steps:

1. Create python virtual environment at ./electrum. (Optional)
2. Follow the steps in Electrum's Readme (Note: for windows users, we already compiled the file ./libsecp256k1-0.dll).
3. Install the requirements file at ./requirements.txt.
4. Install the requirements file at ./electrum/contrib/requirements/requirements.txt.
5. Run $ python ./electrum/run_electrum [--testnet]

Use already installed electrum

Just copy the files at ./electrum/electrum/plugins/txe into the instalation folder. (Note: This wasn't tested.)

---

How to use

This project implements the following features:

• Create a wallet in the TXE.
• Sign a transaction from the TXE.

Note: The plugin is a proof of concept, hence we haven't developed the user experience.

Create a wallet

Complete the following steps to create a new wallet:

1. Create a new dummy standard wallet.
2. Press yes button on the new window to create a new wallet inside the TXE.
3. Enter a new password for the new wallet.
4. Copy the public key and the bitcoin address from the new window.
5. Create a new imported address wallet (File > New/Restore).
6. Paste the copied bitcoin address.
7. Enter a second password for the wallet.
8. Enter the copied public key in the new opened window.

Sign a transaction

Complete the following steps to sign and broadcast a transaction:

1. Go to Send tab.
2. Insert the reciever bitcoin address and the amount to pay.
3. Press Pay button.
4. Enter the password.
5. Press Send to sign and broadcast the transaction.
6. Press Close on the new opened window.