Integrating Information Security and Hardware Defense in Medical Printers: Addressing RowHammer Vulnerabilities

With the rapid development of modern medical equipment technology, more and more diagnosis and treatment processes rely on the support of printing devices. When the doctor transfers data to the printer, the printer first stores the data in RAM to ensure the smooth progress of the printing process. However, the data in RAM faces potential security threats, especially the design defects of dynamic random access memory (DRAM) are vulnerable to RowHammer attacks. RowHammer attacks use charge interference to affect the charge state of adjacent rows by quickly and repeatedly reading a row of memory data, thereby destroying data integrity and even obtaining access to key data in the system memory, causing the risk of data leakage and tampering. In response to this security risk, this paper proposes to use RockHammer to enhance the security performance of printers. RockHammer strengthens the protection mechanism of embedded system memory, can effectively resist the interference operation of attackers, and ensure the integrity and confidentiality of data. The application of this technology can not only ensure the security of medical printing equipment data, but also provide important technical contributions to the fields of medical data security and embedded system security.