A New 64-Bit Cipher for Efficient Implementation Using Constrained FPGA Resources

This work focuses the problem of increasing the integral VLSI implementation efficacy of block ciphers, which are suitable to applications where constrained resources are available to embedded security mechanisms in both ad-hoc and sensor networks. In this paper a new 64-bit cipher Eagle64 is developed, based on the approach of Data Dependent (DD) Operations (DDOs). The proposed Eagle64 provides very fast encryption, while constrained FPGA resources are utilized. The implementation synthesis results are compared with other well known ciphers implementations. It is shown the proposed cipher hardware integration is more efficient than conventional 64- and 128-bit ciphers, using the ratio of both “Performance/Cost” and “Performance/(CostFrequency)”.