Hårdvarustämpning

Hårdvarustämpning, or hardware stamping, refers to the process of embedding information directly into the physical hardware components of a system. This information can include manufacturing details, serial numbers, security keys, or unique identifiers. The purpose of hardware stamping is to provide a permanent and tamper-evident record that is difficult to alter or remove without damaging the hardware itself.

This technique is often employed in contexts where authenticity and traceability are critical. For example, in the semiconductor industry, individual chips may be stamped with information that allows them to be tracked throughout their lifecycle, from manufacturing to deployment. This helps in managing inventory, preventing counterfeiting, and facilitating warranty claims.

In the realm of cybersecurity, hardware stamping can be used to secure devices. Cryptographic keys or unique device identities can be etched into hardware during manufacturing. This makes it significantly harder for malicious actors to extract sensitive information or impersonate a legitimate device, as the keys are not stored in software which is generally more vulnerable to attacks.

The stamping process itself can vary depending on the hardware and the type of information being embedded. It may involve laser etching, chemical etching, or other physical modification techniques applied during the fabrication or assembly stages. The durability of the stamped information is a key consideration, ensuring it can withstand environmental factors and potential attempts at manipulation. While offering robust security and traceability, hardware stamping also adds complexity and cost to the manufacturing process.