switch adminAPIErr {
		case ErrNone:
			return objectAPI, cred
		case ErrAccessDenied:
			// Try another
			continue
		default:
			writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(adminAPIErr), r.URL)
			return nil, cred
		}
	}
	writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAccessDenied), r.URL)
	return nil, auth.Credentials{}
}

// AdminError - is a generic error for all admin APIs.

	// SSE-C errors
	{err: crypto.ErrInvalidCustomerAlgorithm, errCode: ErrInvalidSSECustomerAlgorithm},
	{err: crypto.ErrMissingCustomerKey, errCode: ErrMissingSSECustomerKey},
	{err: crypto.ErrInvalidCustomerKey, errCode: ErrAccessDenied},
	{err: crypto.ErrMissingCustomerKeyMD5, errCode: ErrMissingSSECustomerKeyMD5},
	{err: crypto.ErrCustomerKeyMD5Mismatch, errCode: ErrSSECustomerKeyMD5Mismatch},
	{err: errObjectTampered, errCode: ErrObjectTampered},