Skip to main content

Sign

This distributed signing process allows for secure transaction authorization while preserving the key's distributed nature, exemplifying the MPC wallet's enhanced security model.

Step 1 : Create Session​

Step 2 : Perform Sign​

  • Call trioSession.signature() which returns Result of Success with Signature ByteArray or Failure with exception.

Example​

Example.kt
val messageHash = "e2a159d17b7bb714aed7675d7c7d394dec8d2e4337842848104694bf89c71c03"

suspend fun performSignature(keyshare: ByteArray, trioSession: TrioSession): ByteArray {
    return withContext(Dispatchers.IO) {
        trioSession.signature(
            keyshare = keyshare,
            message = messageHash,
            derivationPath = "m" // This is the default, use your desired path here. For e.g 'm/1/2'
        ).getOrThrow()
    }
}
  • keyshare is the client's "share" of the MPC wallet.
  • messageHash is the hash of the message to be signed as ByteArray.
  • trioSession.signature() performs message exchange between mobile and server to generate a ECDSA/EdDSA signature.
  • Result of trioSession.signature() could be a Success with ByteArray (ECDSA/EdDSA signature) of messageHash, corresponding to the public key (or address) of the wallet or Failure with Exception.