Align identity statement DID with preliminary implementation in concordium-base

Author: soerenbf

docs/pages/verifiable-presentations.md

@@ -243,7 +243,7 @@ const contextValues: GivenContext[] = [{label: 'ResourceID', context: ...}];
 // The application holding the credentials selects the credentials to use and creates a DIDString from them.
 // This will be a combination of the below, i.e. probably not all at once
 const selectedCredentialIds: DIDString[] = [
-    createIdentityDID(...),
+    createIdentityStatementDID(...),
     createAccountDID(...),
     createWeb3IdDID(...),
 ];

examples/nodejs/proofs/verifiable-presentation-id.ts

@@ -8,7 +8,7 @@ import {
     VerifiablePresentationV1,
     VerificationAuditRecordV1,
     createIdentityCommitmentInputWithHdWallet,
-    createIdentityDID,
+    createIdentityStatementDID,
     sha256,
     streamToList,
 } from '@concordium/web-sdk';
@@ -174,7 +174,7 @@ const requestParsed = VerifiablePresentationRequestV1.fromJSON(JSONBig.parse(req
 const credentialInput = createIdentityCommitmentInputWithHdWallet(idObject, idp, identityIndex, wallet);
 
 // we select the identity to prove the statement for
-const selectedIdentity = createIdentityDID(network, identityProviderIndex, identityIndex); // we unwrap here, as we know the statement exists (we created it just above)
+const selectedIdentity = createIdentityStatementDID(network); // we unwrap here, as we know the statement exists (we created it just above)
 const idStatement = requestParsed.credentialStatements.find(
     (s) => s.type === 'identity'
 )! as VerifiablePresentationRequestV1.IdentityStatement; // we unwrap here, as we know the statement exists (we created it just above)

packages/sdk/CHANGELOG.md

@@ -9,7 +9,7 @@
 - types `IdentityCredentialQualifier`, `IdentityCommitmentInput`, and `CredentialsInputsIdentity` which have been added
   to the respective union types that reflect the possible variants.
 - helper functions `createIdentityCommitmentInput` and `createIdentityCommitmentInputWithHdWallet`
-- helper function `createIdentityDID`
+- helper function `createIdentityStatementDID`
 
 - types `VerifiablePresentationV1` and `VerifiablePresentationRequestV1` to be used with the new zero-knowledge proof
   protocol

packages/sdk/src/web3-id/proofs.ts

@@ -564,17 +564,15 @@ export function createAccountDID(network: Network, credId: string): DIDString {
 }
 
 /**
- * Creates a DID string for an identity credential.
+ * Creates a DID string for an identity credential statement.
  * Used to build a request for a verifiable credential based on an identity object.
  *
  * @param network - The Concordium network
- * @param identityProviderIndex - The index of the identity provider that issued the identity
- * @param identityIndex - The index of the identity
- * @returns DID string in format: did:ccd:{network}:id:{identityProviderIndex}:{identityIndex}
+ * @returns DID string in format: did:ccd:{network}
  */
 // TODO: figure out if this matches the identifier.
-export function createIdentityDID(network: Network, identityProviderIndex: number, identityIndex: number): DIDString {
-    return 'did:ccd:' + network.toLowerCase() + ':id:' + identityProviderIndex + ':' + identityIndex;
+export function createIdentityStatementDID(network: Network): DIDString {
+    return 'did:ccd:' + network.toLowerCase();
 }
 
 /**