Abstract:
Many cryptographic protocols require
random or pseudorandom inputs at various
points (e.g., for generating digital signatures, or
in some authentication protocols).
Pseudorandom numbers are critical part of
modern computing and they are produced from
PRNGs (pseudorandom number generators). The
strength of many cryptosystems relies on the
quality of pseudorandom number generated by
PRNG. As pseudorandom number plays an
important role in cryptography, many statistical
tests for analyzing the quality of pseudorandom
sequence generated by PRNGs have been
developed. To analysis the quality of PRNGs’
output key-stream, three graphical tests: (i)
Groups Comparison Test (ii) Longest Runs of All
Test and (iii) Forward Appearance Test are
proposed in this paper. And then this paper
intended for studying important characteristics
of PRNGs) as well as randomness testing of
random numbers.
