Preliminary Statistical Analysis of SHA-256
Zheng Wei · Journal of Information Engineering University · 2011
This paper detects the 0-1 frequency,0-1 course and 0-1 following advantages based on SHA-256 system using statistic assertion and hypothesis testing.Meanwhile the second-order differential is applied to analyze the output of each turn.Security of SHA-256 is verified in the randomness aspect,thus finding some deficiency on randomness of cyclic output data,which is beneficial for further study on SHA-256 and lays the foundation for the loops of algorithm.