GitHub - DisplaceTech/tss-ceremony: Interactive TUI animating a DKLS23 2-of-2 threshold ECDSA signature ceremony

Interactive terminal animation of a DKLS23 2-of-2 threshold ECDSA signature ceremony over secp256k1.

Watch real cryptographic values compute in real time — key generation, nonce commitment, oblivious transfer, multiplicative-to-additive conversion, partial signatures, and final ECDSA signature assembly — then verify the result yourself with OpenSSL.

Install

go install github.com/DisplaceTech/tss-ceremony@latest

Or build from source:

git clone https://github.com/DisplaceTech/tss-ceremony.git
cd tss-ceremony
go build -o tss-ceremony .

Usage

# Run the ceremony
tss-ceremony

# Deterministic mode (fixed keys, random nonces)
tss-ceremony --fixed

# Animation speed: slow, normal, fast
tss-ceremony --speed fast

# Disable color
tss-ceremony --no-color

# Custom message to sign
tss-ceremony --message "your message here"

# Auto-quit after animation (useful for recordings)
tss-ceremony --auto-quit

Controls

Key	Action
`space`	Pause / resume
`enter`	Skip to next step
`q` / `esc`	Quit

Verify a signature

The ceremony produces a standard ECDSA signature. Verify it with the built-in command:

tss-ceremony --verify \
  --pubkey <hex> --sig-r <hex> --sig-s <hex> --message "..."

Or use the OpenSSL one-liner shown at the end of the animation.

Architecture

protocol/ — Pure crypto logic. No TUI dependencies. Fully testable.
tui/ — Single-file Bubbletea animation with progressive hex reveal.
main.go — CLI parsing, ceremony init, TUI wiring.

Testing

License

MIT License — see LICENSE for details.