/// Computes the [DidDocumentProof] based on the given [controller], [verificationMethod] and [proofSignatureContent]
static DidDocumentProof _computeProof(
String controller,
String verificationMethod,
DidDocumentProofSignatureContent proofSignatureContent,
Wallet wallet,
String proofPurpose = "authentication")
{
return(new DidDocumentProof(
type: "EcdsaSecp256k1VerificationKey2019",
timestamp: GenericUtils.getTimeStamp(),
proofPurpose: proofPurpose,
controller: controller,
verificationMethod: verificationMethod,
signatureValue: Convert.ToBase64String(SignHelper.signSorted(proofSignatureContent.toJson(), wallet))
));
}
/// Creates a Did Document from the given [wallet], [pubKeys] and optional [service].
public static DidDocument fromWallet(Wallet wallet, List <PublicKey> pubKeys, List <DidDocumentService> service = null)
{
if (pubKeys.Count < 2)
{
System.ArgumentException argEx = new System.ArgumentException("Argument Exception: DidDocument fromWallet - At least two keys are required ");
throw argEx;
}
//String authKeyId = $"{wallet.bech32Address}#keys-1"; // *** CHeck this !!!
//DidDocumentPublicKey authKey = new DidDocumentPublicKey(
// id: authKeyId,
// type: DidDocumentPubKeyType.SECP256K1,
// controller: wallet.bech32Address,
// publicKeyHex: HexEncDec.ByteArrayToString(wallet.publicKey)
//);
//final otherKeys = mapIndexed(
// pubKeys, (index, item) => _convertKey(item, index + 2, wallet))
// .toList();
// No need to have an util here, I think Linq will do
List <DidDocumentPublicKey> otherKeys = pubKeys.Select(item => _convertKey(item, pubKeys.IndexOf(item) + 1, wallet)).ToList();
DidDocumentProofSignatureContent proofContent = new DidDocumentProofSignatureContent(
context: "https://www.w3.org/ns/did/v1",
id: wallet.bech32Address,
publicKeys: otherKeys
);
String verificationMethod = wallet.bech32PublicKey;
DidDocumentProof proof = _computeProof(proofContent.id, verificationMethod, proofContent, wallet);
return(new DidDocument(
context: proofContent.context,
id: proofContent.id,
publicKeys: proofContent.publicKeys,
proof: proof,
service: service
));
}