Flexible and Portable Management of Secure Scan Implementations Exploiting P1687.1 Extensions

Michele Portolan (1) , Emanuele Valea (2, 3) , Paolo Maistri (1) , Giorgio Di Natale (1)

1 TIMA-AMfoRS - Architectures and Methods for Resilient Systems
2 LFIM - Laboratoire Fonctions Innovantes pour circuits Mixtes
3 LIRMM | TEST - Test and dEpendability of microelectronic integrated SysTems

Current Design-for-Test solutions for scan-based testing such as IEEE 1687 offer rich and powerful access to embedded resources. While this is extremely helpful for testing purposes, it also raises serious security concerns as malicious users could exploit it to gain control of the chip or leak sensitive information. Current solutions, such as Scan Encryption, are all hardware based and incompatible with the Automated Test Flow, seriously limiting their applicability, portability and reuse. In this paper, we show how the features of the upcoming IEEE P1687.1 can be leveraged and extended to not only include Scan Encryption as a native feature but also as a portable Embedded IP block. The experimental results show that thanks to the new Standard, a fully Secure Automated Test Flow can be integrated inside existing tools without custom software modifications.

Mots clés: Encryption; Ciphers; IEEE Standard P.1687.1; Hardware; Computer security; Encoding

Domaines: Micro et nanotechnologies/Microélectronique

Michele Portolan, Emanuele Valea, Paolo Maistri, Giorgio Di Natale. Flexible and Portable Management of Secure Scan Implementations Exploiting P1687.1 Extensions. IEEE Design & Test, 2022, IEEE Design & Test, 39 (3), pp.117-124. ⟨10.1109/MDAT.2021.3117875⟩. ⟨hal-03370952⟩