Data Freshness for Non-Trusted Environments Using Disposable Certificates
Kevin Koerner, Thomas Walter, Michael Menth · 2015
Data stored in a non-trusted environment can be easily modified by attackers. In the context of a cloud, the attacker may be the cloud provider. Therefore, data should be protected against undetected modification. Conventional methods for protection of data integrity do not help if the data in the cloud is exchanged with a previous version of the data. That data is correct but not the latest version, it is not fresh.