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OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM

LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,

NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION

WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

Permission to use, copy, modify, and distribute this software for any purpose with or

without fee is hereby granted, provided that the above copyright notice and this

permission notice appear in all copies.

Modification and redistribution in source and binary forms is permitted provided that due

credit is given to the author and the OpenBSD project (for instance by leaving this

THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES

WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF

MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR

ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES

WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN

ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT

OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

This code is derived from section 17.1 of Applied Cryptography, second edition, which

describes a stream cipher allegedly compatible with RSA Labs "RC4" cipher (the actual

description of which is a trade secret). The same algorithm is used as a stream cipher

called "arcfour" in Tatu Ylonen's ssh package.

Here the stream cipher has been modified always to include the time when initializing

the state. That makes it impossible to regenerate the same random sequence twice, so

this can't be used for encryption, but will generate good random numbers.

RC4 is a registered trademark of RSA Laboratories.

Permission is hereby granted, free of charge, to any person obtaining a copy of this

software and associated documentation files (the "Software"), to deal in the Software

without restriction, including without limitation the rights to use, copy, modify, merge,

publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons

to whom the Software is furnished to do so, subject to the following conditions: