Keypair.exe - Ethereum

Contains executables, created with Nexe, for generating a keypair, signing a message, and verifying a message.

This repo relies entirely on Paul Miller's @noble/secp256k1 and @noble/hashes libraries.

Scripts

You don't need to use the executables at all, you can interact with the source code directly.

Generating a keypair

node create.js

Signing a message

Remove the 0x prefix from hex strings before calling the function.

node sign.js

Verifying a message

The public key, pubKey, can be compressed or uncompressed. When inputting a hex string, remove the 0x prefix before calling the function.

node verify.js

Executables

Details

• Platform: Windows
• Arch: x64
• Node: v16.17.1

Checksum

Commands

There are scripts inside the package.json for both Powershell and Bash.

Powershell:

Get-FileHash -Algorithm SHA256 <FILE_PATH>

Bash:

shasum -a256 <FILE_PATH>

Package.json:

"scripts": {
    "create": "node create.js",
    "sign": "node sign.js",
    "verify": "node verify.js",
    "build-create": "nexe create.js -o _create.exe --build --target windows-x64-16.17.1",
    "build-sign": "nexe sign.js -o _sign.exe --build --target windows-x64-16.17.1",
    "build-verify": "nexe verify.js -o _verify.exe --build --target windows-x64-16.17.1",
    "hash-shell-create": "powershell -Command \"get-FileHash _create.exe\"",
    "hash-shell-sign": "powershell -Command \"get-FileHash _sign.exe\"",
    "hash-shell-verify": "powershell -Command \"get-FileHash _verify.exe\"",
    "hash-bash-create": "bash -c \"shasum -a 256 _create.exe\"",
    "hash-bash-sign": "bash -c \"shasum -a 256 _sign.exe\"",
    "hash-bash-verify": "bash -c \"shasum -a 256 _verify.exe\""
  }

SHA256 Hashes

Create.exe

4512a3362ad6f1ecfa9d9b45c47f228af40b7913b20cd69951bc4d01bad8beee

Sign.exe

a1c9a30819671974b03300cf9479a04499664661f857a2977fe9804451a88e6c

Verify.exe

f9de2672e75ed022516556efeccef46675d601491718308ae9886884c366f421

Rebuild

The steps I took to build the executables are listed below.

Install nexe globally (I used version 4.0.0-rc.6):

npm i -g nexe

Create.js:

nexe create.js -o _create.exe --build --target windows-x64-16.17.1

Sign.js:

nexe sign.js -o _sign.exe --build --target windows-x64-16.17.1

Verify.js:

nexe verify.js -o _verify.exe --build --target windows-x64-16.17.1

Output

Images of what will be displayed in the terminal after running the scripts/executables.

Create

Sign

Verify