Merge branch 'fix-gsa-challenge' into 'master'

GCP release/0.5 - fix GSA Challenge (GONRG-1796)

See merge request !67

provider/register-gcp/README.md

@@ -188,9 +188,9 @@ Create king ring and key in the ***master project***
     		--purpose encryption
 ```
 
-Add **Cloud KMS CryptoKey Encrypter/Decrypter** role to the **App Engine default service account** of the master project through IAM - Role tab
+Add **Cloud KMS CryptoKey Encrypter/Decrypter** role to the **App Engine default service account** of the ***master project*** through IAM - Role tab
 
-Add "Cloud KMS Encrypt/Decrypt" role to the "App Engine default service account" of ***master project***
+Add **Cloud KMS Encrypt/Decrypt** role to the **App Engine default service account** of ***master project***
 
 ## Licence
 Copyright © Google LLC

register-core/src/main/java/org/opengroup/osdu/register/api/test/GsaSubscriberListenerApi.java

@@ -44,7 +44,7 @@ public class GsaSubscriberListenerApi {
       throw new ValidationException("Authorization signature validation Failed");
     }
     logger.info("Token verified and sending response");
-    return new ChallengeResponse(HashingUtil.hashString(crc, this.serviceConfig.getSubscriberSecret()));
+    return new ChallengeResponse(HashingUtil.hashString(crc, this.serviceConfig.getSubscriberPrivateKeyId()));
   }
 
   @PostMapping("/gsa-challenge/{count}")