In 11.3 the test receipt has been introduced. This file contains a digital signature of the results reporting file of a QTI2 test. The feature can be enabled/disabled globally and on a course element level.
The goal of this issue is to add this test receipt to the existing test results download and the test results archive. In this export/archive we generate a human readable version of the results reporting file and include also the raw results reporting XML file. If available, the corresponding digitally signed receipt of this results reporting file should also be in the ZIP next to the results reporting file. Technically, the test receipt is the signature of the results reporting file using the XML Signature Syntax and Processing standard (https://www.w3.org/TR/xmldsig-core/)