Ika CLI

Command-line interface for the Ika decentralized MPC signing network on Sui.

References (detailed command reference and JSON schemas)

• references/commands.md - Full command reference with all flags, arguments, and examples
• references/json-output.md - JSON output schemas for --json flag on every command

Install

# Via Homebrew (macOS/Linux)
brew install ika-xyz/tap/ika

# Or download pre-built binary from GitHub Releases
# https://github.com/dwallet-labs/ika/releases
# Available for: linux-x64, linux-arm64, macos-x64, macos-arm64, windows-x64

# Or build from source
cargo build --release -p ika

Requires: Sui CLI (sui keytool for key management)

Global Flags

All commands support these flags:

Flag	Description
--json	Output results as JSON (machine-parseable). Errors also output as JSON.
--client.config <PATH>	Custom Sui client config path
--ika-config <PATH>	Custom Ika network config path (default for all dwallet subcommands)
--gas-budget <MIST>	Override default gas budget (default for all dwallet subcommands)
-y, --yes	Skip confirmation prompts
-q, --quiet	Suppress human-readable output (JSON still printed with --json -q)

Command Overview

ika
├── start                      # Start local Ika network
├── network                    # Network info and addresses
├── dwallet                    # dWallet operations
│   ├── create                 # Create dWallet via DKG
│   ├── sign                   # Request signature
│   ├── future-sign            # Conditional/future signing
│   │   ├── create             # Create partial user signature
│   │   └── fulfill            # Complete future sign
│   ├── presign                # Request presign (batch up to 20)
│   ├── global-presign         # Global presign with network key
│   ├── import                 # Import external key as dWallet
│   ├── register-encryption-key
│   ├── get-encryption-key
│   ├── verify-presign
│   ├── get                    # Query dWallet info
│   ├── list                   # List owned dWallet capabilities
│   ├── list-presigns          # List presign caps by status/curve
│   ├── public-key             # Extract signing public key
│   ├── decrypt                # Decrypt on-chain encrypted share
│   ├── epoch                  # Query current network epoch
│   ├── pricing                # Current pricing info
│   ├── generate-keypair       # Offline keypair generation
│   └── share                  # User share management
│       ├── make-public
│       ├── re-encrypt
│       └── accept
├── config                     # Configuration management
│   ├── init                   # Fetch addresses + create Sui envs
│   ├── add-env                # Add env from local ika_config.json
│   ├── sync                   # Re-fetch latest contract addresses
│   └── show                   # Show current config
├── validator                  # Validator operations (30+ subcommands)
├── protocol                   # Protocol governance (feature-gated)
└── completion                 # Shell completions (bash/zsh/fish)

Curves, Algorithms, and Hash Schemes

Commands accept named values (not numeric IDs):

Parameter	Accepted values
--curve	secp256k1, secp256r1, ed25519, ristretto
--signature-algorithm	ecdsa, taproot, eddsa, schnorrkel
--hash-scheme	keccak256, sha256, double-sha256, sha512, merlin

Quick Start

Create a dWallet

# Register encryption key first (derives from active Sui address by default)
ika dwallet register-encryption-key --curve secp256k1

# Create a secp256k1 dWallet (IKA/SUI coins auto-detected from wallet)
ika dwallet create \
  --curve secp256k1 \
  --output-secret ./my_dwallet_secret.bin
# Output: dWallet ID, Cap ID, Public Key

# Sign a message
ika dwallet sign \
  --dwallet-cap-id <CAP_ID> \
  --dwallet-id <DWALLET_ID> \
  --message <HEX_MESSAGE> \
  --signature-algorithm ecdsa \
  --hash-scheme keccak256 \
  --secret-share ./my_dwallet_secret.bin \
  --presign-cap-id <PRESIGN_CAP_ID> \
  --wait

Secret Share Handling

The secret share can be provided in three ways (in priority order):

1. --secret-share <file> — read from a local file
2. --secret-share-hex <hex> — pass directly as hex
3. Omit both — the CLI derives the decryption key from your Sui keystore (seed args), fetches the encrypted share from chain, and decrypts it. Requires --dwallet-id.

Batch Presigns

# Create 10 presigns in a single transaction (max 20)
ika dwallet presign \
  --dwallet-id <DWALLET_ID> \
  --signature-algorithm ecdsa \
  --count 10 \
  --wait

List and Inspect

# List all owned dWallet capabilities
ika dwallet list

# List presign caps grouped by status and curve
ika dwallet list-presigns

# Extract the signing public key from a dWallet
ika dwallet public-key --dwallet-id <DWALLET_ID>

# Query current network epoch
ika dwallet epoch

Future Signing (two-step)

# Step 1: Create partial user signature
ika dwallet future-sign create \
  --dwallet-id <DWALLET_ID> \
  --message <HEX_MESSAGE> \
  --hash-scheme sha256 \
  --presign-cap-id <PRESIGN_CAP_ID> \
  --signature-algorithm ecdsa \
  --secret-share ./my_secret.bin

# Step 2: Fulfill (complete the sign)
ika dwallet future-sign fulfill \
  --partial-cap-id <PARTIAL_CAP_ID> \
  --dwallet-cap-id <DWALLET_CAP_ID> \
  --dwallet-id <DWALLET_ID> \
  --message <HEX_MESSAGE> \
  --signature-algorithm ecdsa \
  --hash-scheme sha256 \
  --wait

Seed derivation: Encryption keys are derived stateless from the active Sui keystore address. Use --seed-file <PATH> for raw 32-byte seed, --address <ADDR> for a specific keystore address, or --encryption-key-index <N> for multiple keys per address. Pass --legacy-hash for keys registered before the V2 hash fix (only affects non-SECP256K1 curves).

Auto-detection: IKA/SUI coins are auto-detected from the active wallet. Curve, DKG output, and presign output are auto-fetched from chain when --dwallet-id and --presign-cap-id are provided.

Validator Operations

# Create validator info
ika validator make-validator-info <NAME> <DESC> <IMG_URL> <PROJECT_URL> <HOST> <GAS_PRICE> <ADDRESS>

# Become a validator candidate
ika validator become-candidate <VALIDATOR_INFO_PATH>

# Join the committee
ika validator join-committee --validator-cap-id <CAP_ID>

Key Management

Sui wallet keys are managed by sui keytool:

sui keytool generate ed25519          # Generate new keypair
sui keytool list                       # List known keys
sui keytool import <MNEMONIC>          # Import key from mnemonic

dWallet encryption keys are derived stateless from Sui keystore addresses (no local file storage). The CLI uses keccak256(keypair_bytes || index) to derive a 32-byte seed, then hashes with domain separators to produce class-groups and Ed25519 keys.

JSON Output

All commands support --json for structured output:

ika dwallet get --dwallet-id <ID> --json
ika dwallet list --json
ika dwallet list-presigns --json
ika validator get-validator-metadata --json