A parallelized way to provide data encryption and integrity checking on a processor-memory bus

Elbaz, Reouven; Torres, Lionel; Sassatelli, Gilles; Guillemin, Pierre; Bardouillet, Michel; Martinez, Albert

doi:10.1145/1146909.1147042

Cited by 33 publications

(28 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The external memory of an embedded system can face a variety of attacks (Elbaz, 2006), including the probing of the bus between the processor core and memory. Since the bus is exposed, an adversary can easily examine data and address values with little effort.…”

Section: Threat Modelmentioning

confidence: 99%

See 1 more Smart Citation

A security approach for off-chip memory in embedded microprocessor systems

Vaslin¹,

Gogniat²,

Diguet³

et al. 2009

Microprocessors and Microsystems

View full text Add to dashboard Cite

This paper describes a complete off-chip memory security solution for embedded systems. Our security core is based on a one-time pad (OTP) encryption circuit and a CRC-based integrity checking module. These modules safeguard external memory used by embedded processors against a series of well-known attacks, including replay attacks, spoofing attacks and relocation attacks. Our implementation limits onchip memory space overhead to less than 33% versus memory used by a standard microprocessor and reduces memory latency achieved by previous approaches by at least half. The performance loss for software execution with our solution is only 10% compared with a non-protected implementation. An FPGA prototype of our security core has been completed to validate our findings.

show abstract

Section: Threat Modelmentioning

confidence: 99%

“…PE-ICE (Elbaz, 2006) uses the spreading feature of block ciphering algorithms for AES to provide system confidentiality and integrity. Like XOM, a tag is added to a data value before ciphering.…”

Section: Pe-icementioning

confidence: 99%

A security approach for off-chip memory in embedded microprocessor systems

Vaslin¹,

Gogniat²,

Diguet³

et al. 2009

Microprocessors and Microsystems

View full text Add to dashboard Cite

show abstract

“…The external memory of an embedded system can face a variety of attacks [4] resulting from either the probing of the interface between a processor and the memory or physical attacks on the memory itself (fault injection). Bus probing results in the collection of address and data values which can be used to uncover processor behavior.…”

Section: Embedded System Memory Threatsmentioning

confidence: 99%

“…However, even encrypted data and their associated addresses leave memory values vulnerable to attack. Well-known attacks [4] include spoofing, relocation, and replay attacks. A spoofing attack occurs when an attacker places a random data value in memory, causing the system to malfunction.…”

Section: Embedded System Memory Threatsmentioning

confidence: 99%