Files
harbour-core/include/hbarc4.h
Aleksander Czajczynski 6e3fe511f0 2017-12-14 14:20 UTC+0100 Aleksander Czajczynski (hb fki.pl)
* contrib/hbamf/amfenc.c
    * update amf3_Encode() serialize function with great idea of Przemek
      implemented recenly in hb_Serialize(). Checking garbage collector
      reference count can save time here too, unique arrays and hashes won't
      be indexed as references.

  * contrib/hbexpat/3rd/expat/*
    ! updated to 2.2.5 (from 2.2.1) using 3rdpatch.hb, expat.diff from
      Viktor's 3.4 fork was used - but (again) adapted for DOS 8.3 naming
      scheme. Also i've kept local patches for WinCE, OpenWatcom DOS/OS2,
      please test. Compilation in CPP mode is explicitly disabled for libexpat
      now, as upstream decided to ignore such use cases completly.

   * contrib/hbexpat/*
     * synced with Viktor's 3.4 fork

   + include/hbarc4.h
   * src/harbour.def
     + export ARC4 core routines like in 3.4 fork, updated expat lib reuses it.

   * contrib/hbtip/hbtip.hbp
     ! adapt *.hbx file specifier to hbmk2 3.2 syntax
2017-12-14 14:21:03 +01:00

66 lines
2.3 KiB
C

/*
* Portable ARC4 PRNG, based on arc4random.c from Libevent.
* Harbour adaptation Copyright 2011 Tamas TEVESZ <ice@extreme.hu>
*/
/*
* Portable arc4random.c based on arc4random.c from OpenBSD.
* Portable version by Chris Davis, adapted for Libevent by Nick Mathewson
* Copyright (c) 2010 Chris Davis, Niels Provos, and Nick Mathewson
*/
/*
* Copyright (c) 1996, David Mazieres <dm@uun.org>
* Copyright (c) 2008, Damien Miller <djm@openbsd.org>
*
* 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.
*
* 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.
*/
/*
* Arc4 random number generator for OpenBSD.
*
* 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 cannot be used
* for encryption, but will generate good random numbers.
*
* RC4 is a registered trademark of RSA Laboratories.
*/
/*
* Bit of a guesswork; possibly needs to be extended to other platforms,
* but on Unix-ish systems, seeding will fall back to using the
* /dev/random-variants.
*/
#ifndef ARC4_H
#define ARC4_H
#include "hbdefs.h"
HB_EXTERN_BEGIN
extern HB_EXPORT HB_U32 hb_arc4random( void );
extern HB_EXPORT void hb_arc4random_buf( void * _buf, HB_SIZE n );
extern HB_EXPORT HB_U32 hb_arc4random_uniform( HB_U32 upper_bound );
HB_EXTERN_END
#endif /* ARC4_H */