Optimized Password Recovery for SHA-512 on GPUs

One-way hash algorithms, including MD4, MD5 and SHA family, have been widely used in password protection. Focusing on brute force password recovery for one-way hash algorithm, the amount of computation depends on the complexity of the algorithm. This paper introduces an optimized brute force password recovery implementation for SHA-512 on GPU. By using several optimization methods, the performance reaches 1055M hash/second on double AMD R9 290 GPUs. Compared with Hashcat, our implementation is about 11% faster.