feat!: native DIDDocuments and proper DID resolution interface

packages/core/src/attestation/Attestation.ts

@@ -49,7 +49,7 @@ export function verifyDataStructure(input: IAttestation): void {
   if (!input.owner) {
     throw new SDKErrors.OwnerMissingError()
   }
-  Did.validateUri(input.owner, 'Did')
+  Did.validateIdentifier(input.owner, 'Uri')
 
   if (typeof input.revoked !== 'boolean') {
     throw new SDKErrors.RevokedTypeError()

packages/core/src/credentialsV1/KiltAttestationProofV1.ts

@@ -32,7 +32,7 @@ import type { IEventData, Signer } from '@polkadot/types/types'
 import {
   authorizeTx,
   getFullDidUri,
-  validateUri,
+  validateIdentifier,
   fromChain as didFromChain,
 } from '@kiltprotocol/did'
 import { JsonSchema, SDKErrors, Caip19 } from '@kiltprotocol/utils'
@@ -347,7 +347,7 @@ export async function verify(
   validateCredentialStructure(credential)
   const { nonTransferable, credentialStatus, credentialSubject, issuer } =
     credential
-  validateUri(issuer, 'Did')
+  validateIdentifier(issuer, 'Uri')
   await validateSubject(credential, opts)
   // 4. check nonTransferable
   if (nonTransferable !== true)

packages/core/src/credentialsV1/types.ts

@@ -8,7 +8,7 @@
 /* eslint-disable no-use-before-define */
 
 import type {
-  ConformingDidKey,
+  VerificationMethod,
   DidUri,
   Caip2ChainId,
   IClaimContents,
@@ -33,7 +33,7 @@ import type {
   KILT_ATTESTER_LEGITIMATION_V1_TYPE,
 } from './common.js'
 
-export type IPublicKeyRecord = ConformingDidKey
+export type IPublicKeyRecord = VerificationMethod
 
 export interface Proof {
   type: string

packages/core/src/delegation/DelegationNode.ts

@@ -9,12 +9,12 @@ import type {
   CTypeHash,
   DidDocument,
   DidUri,
-  DidVerificationKey,
   IAttestation,
   IDelegationHierarchyDetails,
   IDelegationNode,
   SignCallback,
   SubmittableExtrinsic,
+  DidUrl,
 } from '@kiltprotocol/types'
 import { Crypto, SDKErrors, UUID } from '@kiltprotocol/utils'
 import { ConfigService } from '@kiltprotocol/config'
@@ -268,23 +268,27 @@ export class DelegationNode implements IDelegationNode {
   ): Promise<Did.EncodedSignature> {
     const delegateSignature = await sign({
       data: this.generateHash(),
-      did: delegateDid.uri,
-      keyRelationship: 'authentication',
+      did: delegateDid.id,
+      verificationRelationship: 'authentication',
     })
-    const { fragment } = Did.parse(delegateSignature.keyUri)
+    const signerUrl =
+      `${delegateDid.id}${delegateSignature.verificationMethod.id}` as DidUrl
+    const { fragment } = Did.parse(signerUrl)
     if (!fragment) {
       throw new SDKErrors.DidError(
-        `DID key uri "${delegateSignature.keyUri}" couldn't be parsed`
+        `DID verification method URL "${signerUrl}" couldn't be parsed`
       )
     }
-    const key = Did.getKey(delegateDid, fragment)
-    if (!key) {
+    const verificationMethod = delegateDid.verificationMethod?.find(
+      ({ id }) => id === fragment
+    )
+    if (!verificationMethod) {
       throw new SDKErrors.DidError(
-        `Key with fragment "${fragment}" was not found on DID: "${delegateDid.uri}"`
+        `Verification method "${signerUrl}" was not found on DID: "${delegateDid.id}"`
       )
     }
     return Did.didSignatureToChain(
-      key as DidVerificationKey,
+      verificationMethod,
       delegateSignature.signature
     )
   }

packages/did/package.json

@@ -44,6 +44,7 @@
     "@polkadot/types": "^10.4.0",
     "@polkadot/types-codec": "^10.4.0",
     "@polkadot/util": "^12.0.0",
-    "@polkadot/util-crypto": "^12.0.0"
+    "@polkadot/util-crypto": "^12.0.0",
+    "multibase": "^4.0.6"
   }
 }