feat(openid4vc-client): pre-authorized (openwallet-foundation#1243)

This PR adds support for the `pre-authorized` OpenID for Verifiable Credentials issuance flow to the new `openid4vc-client` module.

Here are some highlights of the work:
- Allows the user to execute the entire `pre-authorized` flow by calling a single method.
- Adds a happy-flow test
    - HTTP(S) requests and responses are mocked using a network mocking library called [nock](https://github.com/nock/nock)
    - Because the JSON-LD credential that is received is expanded by the `W3cCredentialService`, I've added a few new contexts to our test document loader.
    - Not-so-happy-flow tests will be added later on. If you have any suggestions for edge cases that deserve testing, feel free to drop a comment.
- Modifies the `JwsService`
    - The `JwsService` was geared towards a very specific use case. I've generalized its API so it's usable for a wider range of applications.
    - All pre-existing tests and calls to the `JwsService` have been updated.

It's worth noting that I have had to add some `@ts-ignore` statements here and there to get around some incomplete types in the `OpenID4VCI-Client` library we're using. Once these issues have been resolved in the client library, they will be removed.

**Work funded by the government of Ontario**

---------

Signed-off-by: Karim Stekelenburg <[email protected]>
Co-authored-by: Timo Glastra <[email protected]>

packages/core/src/crypto/__tests__/JwsService.test.ts

@@ -1,5 +1,5 @@
 import type { AgentContext } from '../../agent'
-import type { Wallet } from '@aries-framework/core'
+import type { Key, Wallet } from '@aries-framework/core'
 
 import { getAgentConfig, getAgentContext } from '../../../tests/helpers'
 import { DidKey } from '../../modules/dids'
@@ -16,7 +16,8 @@ describe('JwsService', () => {
   let wallet: Wallet
   let agentContext: AgentContext
   let jwsService: JwsService
-
+  let didJwsz6MkfKey: Key
+  let didJwsz6MkvKey: Key
   beforeAll(async () => {
     const config = getAgentConfig('JwsService')
     wallet = new IndyWallet(config.agentDependencies, config.logger, new SigningProviderRegistry([]))
@@ -27,6 +28,8 @@ describe('JwsService', () => {
     await wallet.createAndOpen(config.walletConfig!)
 
     jwsService = new JwsService()
+    didJwsz6MkfKey = await wallet.createKey({ seed: didJwsz6Mkf.SEED, keyType: KeyType.Ed25519 })
+    didJwsz6MkvKey = await wallet.createKey({ seed: didJwsz6Mkv.SEED, keyType: KeyType.Ed25519 })
   })
 
   afterAll(async () => {
@@ -35,18 +38,16 @@ describe('JwsService', () => {
 
   describe('createJws', () => {
     it('creates a jws for the payload with the key associated with the verkey', async () => {
-      const key = await wallet.createKey({ seed: didJwsz6Mkf.SEED, keyType: KeyType.Ed25519 })
-
       const payload = JsonEncoder.toBuffer(didJwsz6Mkf.DATA_JSON)
-      const kid = new DidKey(key).did
+      const kid = new DidKey(didJwsz6MkfKey).did
 
       const jws = await jwsService.createJws(agentContext, {
         payload,
-        key,
+        key: didJwsz6MkfKey,
         header: { kid },
         protectedHeaderOptions: {
           alg: 'EdDSA',
-          jwk: key.toJwk(),
+          jwk: didJwsz6MkfKey.toJwk(),
         },
       })
 
@@ -58,13 +59,14 @@ describe('JwsService', () => {
     it('returns true if the jws signature matches the payload', async () => {
       const payload = JsonEncoder.toBuffer(didJwsz6Mkf.DATA_JSON)
 
+      const { isValid, signerKeys } = await jwsService.verifyJws(agentContext, {
       const { isValid, signerKeys } = await jwsService.verifyJws(agentContext, {
         payload,
         jws: didJwsz6Mkf.JWS_JSON,
       })
 
       expect(isValid).toBe(true)
-      expect(signerKeys).toEqual([didJwsz6Mkf.VERKEY])
+      expect(signerKeys).toEqual([didJwsz6MkfKey])
     })
 
     it('returns all verkeys that signed the jws', async () => {
@@ -76,7 +78,7 @@ describe('JwsService', () => {
       })
 
       expect(isValid).toBe(true)
-      expect(signerKeys).toEqual([didJwsz6Mkf.VERKEY, didJwsz6Mkv.VERKEY])
+      expect(signerKeys).toEqual([didJwsz6MkfKey, didJwsz6MkvKey])
     })
 
     it('returns false if the jws signature does not match the payload', async () => {

packages/openid4vc-client/package.json

@@ -6,7 +6,6 @@
   "files": [
     "build"
   ],
-  "private": true,
   "license": "Apache-2.0",
   "publishConfig": {
     "access": "public"