preSignature
Generates a pre-signature for instant signing later with preSignatureFinal.
Pre-compute expensive MPC operations before knowing the message. Ideal for high-frequency trading where sub-100ms signing is critical.
Example: Instant Trading
// Generate pre-signature in advance
val preSig = session.preSignature(keyshare).getOrThrow()
// Later, when you have the trade details:
val tradeHash = hashTrade(symbol = "ETH/USD", amount = "1.5", price = "3500")
// Instant signature (<100ms)
val signature = session.preSignatureFinal(
preSignature = preSig,
message = tradeHash.toHexString(),
derivationPath = "m/44'/60'/0'/0/0"
).getOrThrow()
// Submit signed trade
exchange.submitOrder(trade.withSignature(signature))Content copied to clipboard
Important: Each pre-signature is single-use only. Generate new ones after use.
Return
Parameters
keyshare
The keyshare to use for pre-signature generation
See also
to finalize with message