fix: CType does not check credential ctype in presentation (#867)

* fix: bug where ctype provided does not match credential ctype id

* feat: using the helper function for ctype hash to id

* fix: updating to check if ctype id is correct

packages/legacy-credentials/src/Credential.ts

@@ -298,8 +298,11 @@ export function verifyWellFormed(
 ): void {
   verifyDataStructure(credential)
   verifyDataIntegrity(credential)
-
   if (ctype) {
+    const credentialCTypeId = CType.hashToId(credential.claim.cTypeHash)
+    if (credentialCTypeId !== ctype.$id) {
+      throw new SDKErrors.CTypeIdMismatchError(ctype.$id, credentialCTypeId)
+    }
     CType.verifyClaimAgainstSchema(credential.claim.contents, ctype)
   }
 }