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hw_wallet_calldata_formatter

v1.0.1

Published

Format calldata into a format that reflects what users see on their hw wallet screen.

Vulnerabilities

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Links

Maintainers

mike_connormike_connor

Keywords

Readme

hw_wallet_calldata_formatter

Format a hex string for visual inspection on Ledger or Trezor hardware wallets.

Feel free to open PRs with other formats :)

Disclaimer

This is experimental software. It has not been audited. It doesn't even contain tests. This software might contain critical bugs. You could lose all your funds if you use this software. Do not rely on this software.

🛠 Installation

npm install -g hw_wallet_calldata_formatter
which hw_wallet_calldata_formatter

Contributing

Clonse the repo:

git clone https://github.com/iAmMichaelConnor/hw_wallet_calldata_formatter.git
cd hw_wallet_calldata_formatter

Install dependencies

npm i

Then add it to your bin, so that you can use it as a command line tool:

npm i -g

To verify installation:

which hw_wallet_calldata_formatter

🚀 Usage

hw_wallet_calldata_formatter <calldata hex string> [options]

Options

  • -l, --ledger Format output for Ledger Flex
  • -t, --trezor Format output for Trezor Safe 5

You can use one or both flags.

Examples

hw_wallet_calldata_formatter 0x6a761202000000000000000000000000A0b86991c6218b36c1d19D4a2e9Eb0cE3606eB480000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000012000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001a00000000000000000000000000000000000000000000000000000000000000044a9059cbb0000000000000000000000003253ea053090adca994cbd4291e6834206ab40f90000000000000000000000000000000000000000000000000000000000002710000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 --ledger

Outputs:

Ledger Flex Format:

6a761202
00:A0b86991:c6218b36c1d19D4a:2e9Eb0cE3606eB48
00:00:00:00
00:00:00:120
00:00:00:00
00:00:00:00
00:00:00:00
00:00:00:00
00:00:00:00
00:00:00:00
00:00:00:1a0
00:00:00:44
a9059cbb00000000:00:3253ea053090adca:994cbd4291e68342
6ab40f900000000:00:00:00
271000000000:00:00:00
00:00:00:00
hw_wallet_calldata_formatter 0x6a761202000000000000000000000000A0b86991c6218b36c1d19D4a2e9Eb0cE3606eB480000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000012000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001a00000000000000000000000000000000000000000000000000000000000000044a9059cbb0000000000000000000000003253ea053090adca994cbd4291e6834206ab40f90000000000000000000000000000000000000000000000000000000000002710000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 --trezor
Trezor Format:

Size: 484 bytes

Page 1:

6a7612020000000000
00000000000000A0b8
6991c6218b36c1d19D
4a2e9Eb0cE3606eB48
000000000000000000
00000000000000

Page 2:

00000000000000
000000000000000000
000000000000000000
000000000000000000
000000000000000000
00000001200000

Page 3:

00000000000000
000000000000000000
000000000000000000
000000000000000000
000000000000000000
00000000000000

Page 4:

00000000000000
000000000000000000
000000000000000000
000000000000000000
000000000000000000
00000000000000

Page 5:

00000000000000
000000000000000000
000000000000000000
000000000000000000
000000000000000000
00000000000000

Page 6:

00000000000000
000000000000000000
000000000000000000
000000000000000000
000000000000000000
00000000000000

Page 7:

00000000000000
000000000000000000
0000000001a0000000
000000000000000000
000000000000000000
00000000000000

Page 8:

00000044a9059c
bb0000000000000000
000000003253ea0530
90adca994cbd4291e6
834206ab40f9000000
00000000000000

Page 9:

00000000000000
000000000000000000
000000002710000000
000000000000000000
000000000000000000
00000000000000

Page 10:

00000000000000
000000000000000000
000000000000000000
00000000000000

🧾 Notes

  • The hex string may start with or without 0x
  • Output is printed to stdout
  • Invalid or odd-length hex strings will throw an error