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      1 #!/usr/local/bin/perl
      2 # bn_prime.pl
      3 
      4 $num=2048;
      5 $num=$ARGV[0] if ($#ARGV >= 0);
      6 
      7 push(@primes,2);
      8 $p=1;
      9 loop: while ($#primes < $num-1)
     10 	{
     11 	$p+=2;
     12 	$s=int(sqrt($p));
     13 
     14 	for ($i=0; defined($primes[$i]) && $primes[$i]<=$s; $i++)
     15 		{
     16 		next loop if (($p%$primes[$i]) == 0);
     17 		}
     18 	push(@primes,$p);
     19 	}
     20 
     21 # print <<"EOF";
     22 # /* Auto generated by bn_prime.pl */
     23 # /* Copyright (C) 1995-1997 Eric Young (eay\@mincom.oz.au).
     24 #  * All rights reserved.
     25 #  * Copyright remains Eric Young's, and as such any Copyright notices in
     26 #  * the code are not to be removed.
     27 #  * See the COPYRIGHT file in the SSLeay distribution for more details.
     28 #  */
     29 # 
     30 # EOF
     31 
     32 print <<\EOF;
     33 /* Auto generated by bn_prime.pl */
     34 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
     35  * All rights reserved.
     36  *
     37  * This package is an SSL implementation written
     38  * by Eric Young (eay@cryptsoft.com).
     39  * The implementation was written so as to conform with Netscapes SSL.
     40  * 
     41  * This library is free for commercial and non-commercial use as long as
     42  * the following conditions are aheared to.  The following conditions
     43  * apply to all code found in this distribution, be it the RC4, RSA,
     44  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
     45  * included with this distribution is covered by the same copyright terms
     46  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
     47  * 
     48  * Copyright remains Eric Young's, and as such any Copyright notices in
     49  * the code are not to be removed.
     50  * If this package is used in a product, Eric Young should be given attribution
     51  * as the author of the parts of the library used.
     52  * This can be in the form of a textual message at program startup or
     53  * in documentation (online or textual) provided with the package.
     54  * 
     55  * Redistribution and use in source and binary forms, with or without
     56  * modification, are permitted provided that the following conditions
     57  * are met:
     58  * 1. Redistributions of source code must retain the copyright
     59  *    notice, this list of conditions and the following disclaimer.
     60  * 2. Redistributions in binary form must reproduce the above copyright
     61  *    notice, this list of conditions and the following disclaimer in the
     62  *    documentation and/or other materials provided with the distribution.
     63  * 3. All advertising materials mentioning features or use of this software
     64  *    must display the following acknowledgement:
     65  *    "This product includes cryptographic software written by
     66  *     Eric Young (eay (at] cryptsoft.com)"
     67  *    The word 'cryptographic' can be left out if the rouines from the library
     68  *    being used are not cryptographic related :-).
     69  * 4. If you include any Windows specific code (or a derivative thereof) from 
     70  *    the apps directory (application code) you must include an acknowledgement:
     71  *    "This product includes software written by Tim Hudson (tjh (at] cryptsoft.com)"
     72  * 
     73  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
     74  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     75  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     76  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     77  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     78  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     79  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     80  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     81  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     82  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     83  * SUCH DAMAGE.
     84  * 
     85  * The licence and distribution terms for any publically available version or
     86  * derivative of this code cannot be changed.  i.e. this code cannot simply be
     87  * copied and put under another distribution licence
     88  * [including the GNU Public Licence.]
     89  */
     90 
     91 EOF
     92 
     93 for ($i=0; $i <= $#primes; $i++)
     94 	{
     95 	if ($primes[$i] > 256)
     96 		{
     97 		$eight=$i;
     98 		last;
     99 		}
    100 	}
    101 
    102 printf "#ifndef EIGHT_BIT\n";
    103 printf "#define NUMPRIMES %d\n",$num;
    104 printf "typedef unsigned short prime_t;\n";
    105 printf "#else\n";
    106 printf "#define NUMPRIMES %d\n",$eight;
    107 printf "typedef unsigned char prime_t;\n";
    108 printf "#endif\n";
    109 print "static const prime_t primes[NUMPRIMES]=\n\t{\n\t";
    110 $init=0;
    111 for ($i=0; $i <= $#primes; $i++)
    112 	{
    113 	printf "\n#ifndef EIGHT_BIT\n\t" if ($primes[$i] > 256) && !($init++);
    114 	printf("\n\t") if (($i%8) == 0) && ($i != 0);
    115 	printf("%4d,",$primes[$i]);
    116 	}
    117 print "\n#endif\n\t};\n";
    118 
    119 
    120