cryptographic ergodic sequence generators?

[Adam Back]

You might also look at RC5-16.  RC5 is defined on 64, 32, 16 and 8 bit
words with respectively 128, 64, 32 and 16 bit block sizes.

Using counter-mode as suggested by someone earlier in the thread would
be the obvious way to get a sequence with a period of 2^n.

The Yarrow RNG uses counter-mode as a PRNG.  However in the paper they
describe some effects you may want to avoid by re-keying depending on
your application as the stream becomes distinguishable from random
output.

Adam

On Sat, Sep 06, 2003 at 07:08:46PM -0400, Perry E. Metzger wrote:
> Greg Rose <ggr at qualcomm.com> writes:
> I was unaware there *were* any good 32 bit block ciphers out there,
> thus the question. Certainly that would do better than most
> possibilities for this, yes.

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