stellar-sdk/com.soneso.stellar.sdk.smartaccount.core/SmartAccountBuilders/createWebAuthnSigner

createWebAuthnSigner

fun createWebAuthnSigner(webauthnVerifierAddress: String, publicKey: ByteArray, credentialId: ByteArray): ExternalSigner

Creates a WebAuthn passkey signer.

Convenience wrapper around createExternalSigner that handles the key_data format for WebAuthn (pubkey + credentialId).

Return

An ExternalSigner configured for WebAuthn verification

Parameters

webauthnVerifierAddress

WebAuthn verifier contract address (C-address)

publicKey

65-byte secp256r1 uncompressed public key (0x04 prefix + X + Y)

credentialId

WebAuthn credential identifier bytes

Throws

ValidationException.InvalidAddress

if the verifier address format is invalid

ValidationException.InvalidInput

if the public key size or format is invalid, or if the credential ID is empty

Example:

val signer = SmartAccountBuilders.createWebAuthnSigner(
    webauthnVerifierAddress = "CBCD1234...",
    publicKey = secp256r1PublicKey,
    credentialId = credentialIdBytes
)