High speed implementation of symmetric block cipher on GPU

Recently, GPU is widely accepted in research community as an effective accelerator to many existing algorithms. In this paper, we contribute to the cryptography research community by presenting high speed implementation of symmetric block ciphers in GPU platform. We implemented Camellia, CAST5 and SEED in NVIDIA GTX680 and present the details of implementation techniques together with benchmarking results against existing solutions. According to the evaluation result, we are able to achieve throughput of 61.1 Gbps, 45.5 Gbps and 47.4 Gbps for Camellia, CAST5 and SEED accordingly, without considering the data transfer between CPU and GPU. By considering the data transfer, the throughput for Camellia, CAST5 and SEED dropped to 44.9 Gbps, 40.5 Gbps and 38.6 Gbps accordingly.