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We estimate that Spritz can produce output with about 24 cycles/byte of computation. Furthermore, our statistical tests suggest that about 281281 bytes of output are needed before one can reasonably d...
We provide an improved complexity analysis of backtracking-based state recovery attacks on RC4 and Spritz. Comparing new estimates with known results on Spritz, our analysis shows a significantly lowe...
Spritz is a stream cipher proposed by Rivest and Schuldt at
the rump session of CRYPTO 2014. It is intended to be a replacement of
the popular RC4 stream cipher. In this paper we propose distinguish...
Statistical weakness in Spritz against VMPC-R: in search for the RC4 replacement
PRNG CSPRNG Spritz
2016/1/5
We found a statistical weakness in the Spritz algorithm designed by Ronald L. Rivest
and Jacob C. N. Schuldt. For N = 8: P rob(output(x) = output(x + 2)) = 1/N + 0.000498. The
bias becomes statistic...
State-recovery analysis of Spritz
Spritz RC4 stream cipher
2015/12/23
RC4 suffered from a range of plaintext-recovery attacks using
statistical biases, which use substantial, albeit close-to-practical, amounts
of known keystream in applications such as TLS or WEP/WPA....