writeAsymkeyAuth(id, authType, controller, publicKey)

Feature	Generates an AsymKeyAuth instance a component of the did document.
Parameters	string authentication id, // did string + “#” + unique id "SECP256K1_2019" | "SECP256K1_IMFACT_2025" option, string controller, // did string string publicKey
Return Value	AsymKeyAuth instance

Key Type Mapping

Option	DID Verification Type
SECP256K1_2019	EcdsaSecp256k1VerificationKey2019 (includes publicKeyMultibase, auto-generated by SDK)
SECP256K1_IMFACT_2025	EcdsaSecp256k1VerificationKeyImFact2025 (ImFact-native format only)

const did = "did:mitum:0x4526f3D0EdC63D9EaeCD94D56551e0f061CFCa47fca";
const id = did + "#auth_key5";
const authType = "SECP256K1_2019";
const controller = did;
const publicKey = "0359335c48c7b06d05cfba06c4d37aa0369069d5d5c036a6c7a098199e0650d3c8fpu";
const authentication = mitum.authdid.writeAsymkeyAuth(id, authType, controller, publicKey);

console.log(authentication.toHintedObject());

// output
{
  _hint: 'mitum-did-verification-method-v0.0.1',
  id: 'did:mitum:0x4526f3D0EdC63D9EaeCD94D56551e0f061CFCa47fca#auth_key5',
  controller: 'did:mitum:0x4526f3D0EdC63D9EaeCD94D56551e0f061CFCa47fca',
  type: 'EcdsaSecp256k1VerificationKey2019',
  publicKeyMultibase: 'zQ3shkeJqSA83KtfcMeYRwBU4wZa7Pyn4xVQHfJcYVUryunR5',
  publicKeyImFact: '0359335c48c7b06d05cfba06c4d37aa0369069d5d5c036a6c7a098199e0650d3c8fpu'
}