keysmith

Keysmith

Hierarchical Deterministic Key Derivation for the Internet Computer

Disclaimer

YOU EXPRESSLY ACKNOWLEDGE AND AGREE THAT USE OF THIS SOFTWARE IS AT YOUR SOLE RISK. AUTHORS OF THIS SOFTWARE SHALL NOT BE LIABLE FOR DAMAGES OF ANY TYPE, WHETHER DIRECT OR INDIRECT.

Introduction

Keysmith lets you derive cryptographic keys and identifiers for the Internet Computer. Among these identifiers includes an account identifier, which indicates the source or destination of an ICP token transfer. Keysmith does not sign or send messages to the Internet Computer. Hence, Keysmith does not facilitate ICP token transfer, but rather only ICP token custody. For use cases other than custody, such as payments, consider using Keysmith in conjunction with other software, such as the DFINITY Canister SDK.

Download

Download the latest tarball here.

Verify

If you want to verify the authenticity of the tarball, then please also download the supplementary SHA256.SIG and SHA256.SUM files, as well as my public key, which you can find here.

Verify the SHA256 checksum of the tarball.

grep "$(openssl dgst -sha256 keysmith-*.tar.gz)" SHA256.SUM

Verify the signature on the tarball.

openssl dgst -sha256 -verify public.key -signature SHA256.SIG SHA256.SUM

The command above should display the following output.

Verified OK

Install

Extract the executable from the tarball.

tar -f keysmith-*.tar.gz -x 

Add the executable to your PATH.

sudo install -d /usr/local/bin
sudo install keysmith /usr/local/bin

Usage

Below is list of commands and their behavior.

• account prints your account identifier.
• generate generates your mnemonic seed and writes it to a file.
• legacy-address prints your legacy address.
• principal prints your principal identifier.
• private-key derives your private key and writes it to a file.
• public-key prints your public key.
• shortlist prints the available commands.
• version prints the version number.
• x-private-key derives your extended private key and writes it to a file.
• x-public-key prints your extended public key.

Integration with the DFINITY Canister SDK

The DFINITY Canister SDK can sign and send messages to the Internet Computer. Versions 0.7.0-beta.6 and greater provide a convenient ledger command that facilitates ICP token transfer. Consider the workflow below.

# Generate your mnemonic seed.
keysmith generate
# Derive your private key.
keysmith private-key
# Create an empty project.
echo {} > dfx.json
# Import your private key.
dfx identity import alternate identity.pem
# Use your private key to sign messages.
dfx identity use alternate
# Print your account identifier.
dfx ledger account-id
# Check your balance.
dfx ledger --network=https://ic0.app balance
# Send me some tokens.
dfx ledger --network=https://ic0.app transfer \
    --amount=1.23456789 \
    --memo=0 \
    --to=89e99f79ec4d81f77a6c8cb243e536e7b3244d7294fb803bcd77b3dd4e32ae36