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 <[EMAIL PROTECTED]> 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. --------------------------------------------------------------------- The Cryptography Mailing List Unsubscribe by sending "unsubscribe cryptography" to [EMAIL PROTECTED]