Then, the novel Random Dynamic Frequency Scaling (RDFS) countermeasure is proposed to improve the resistance of such systems. First, this work aimed to confirm the vulnerability of cryptographic SoCs against several types of power analysis attacks. In these systems, cryptographic accelerators are integrated with processor cores to provide users with the software’s flexibility and hardware’s high performance.
#Quickboot no longer works software#
The Ed25519 performs 90% better compared to the software counterpart in execution times.Ĭryptographic System-on-Chips (SoCs) are becoming more and more popular. Comparing to the software approach, a 2.5-decade increment is observed in the throughput of the signature procedure using the SHA-3 acceleration for big chunks of data. For the TEE boot, the software procedures are switched with the accelerated counterpart. TileLink is used for the communications between the processor and the register of the accelerators. The hardware accelerators are the SHA-3 hash and the Ed25519 elliptic curve algorithms. In this paper, a RISC-V system compatible with TEEs featuring security algorithm accelerators is presented.
Although the TEE hardware has been defined for memory isolation, the security algorithms often are executed using software implementations. The procedure uses different algorithms such as hashes and signatures, to authenticate the application to secure. The TEE offers a memory isolation scheme and software authentication from a high privilege mode. The Trusted Execution Environment (TEE) offers a software platform for secure applications.
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