Fault diagnosis architecture for SKINNY family of block ciphers

Abstract

Cryptographic hardware and software applications are prone to various attacks either from the environments or from the attacker to gain the secret key. Resource-constrained devices use lightweight cryptographic algorithms to achieve a high level of security. It's always a trade-off between efficient resource utilization and level of security. Out of different attacks, in recent years, fault injection attacks is well matured. It becomes imperative to choose the best and efficient fault diagnosis schemes for lightweight cryptography. In this paper, we propose novel Concurrent error detection (CED), i.e., recomputing with inverted operands (REIO) method for SKINNY Family of Block Ciphers to increase the reliability. The proposed fault detection technique for SKINNY round-based pipelined architecture is adapted. The result shows that the throughput overhead of the SKINNY remains within 2.5% variance for the proposed novel fault detection with a pipelined technique, a maximum of 10% area overhead. We have implemented the proposed fault detection scheme using Xilinx FPGA. Best to our knowledge, there is no CED based fault detection technique proposed in the literature for the SKINNY family of block ciphers. The implementation results show that the proposed scheme is more effective and well suited for resource-constrained environments.