A file validation method and system is provided. The method includes retrieving from an authoritative source system, an artifact file. Identification information identifying a requesting user of the artifact file is recorded and associated metadata and a modified artifact file comprising the metadata combined with the artifact file are generated. An encryption key including a first portion and a second portion is generated and the first portion is stored within a central key store database. An encrypted package comprising the modified artifact file and the second portion of the key is generated.