53 lines
1.4 KiB
Perl
53 lines
1.4 KiB
Perl
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#! /usr/bin/env perl
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# Copyright 1998-2021 The OpenSSL Project Authors. All Rights Reserved.
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#
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# Licensed under the Apache License 2.0 (the "License"). You may not use
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# this file except in compliance with the License. You can obtain a copy
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# in the file LICENSE in the source distribution or at
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# https://www.openssl.org/source/license.html
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use FindBin;
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use lib "$FindBin::Bin/../../util/perl";
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use OpenSSL::copyright;
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# The year the output file is generated.
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my $YEAR = OpenSSL::copyright::year_of($0);
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print <<"EOF";
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/*
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* WARNING: do not edit!
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* Generated by crypto/bn/bn_prime.pl
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*
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* Copyright 1998-$YEAR The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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EOF
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my $num = shift || 2048;
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my @primes = ( 2 );
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my $p = 1;
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loop: while ($#primes < $num-1) {
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$p += 2;
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my $s = int(sqrt($p));
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for (my $i = 0; defined($primes[$i]) && $primes[$i] <= $s; $i++) {
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next loop if ($p % $primes[$i]) == 0;
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}
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push(@primes, $p);
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}
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print "typedef unsigned short prime_t;\n";
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printf "# define NUMPRIMES %d\n\n", $num;
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printf "static const prime_t primes[%d] = {", $num;
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for (my $i = 0; $i <= $#primes; $i++) {
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printf "\n " if ($i % 8) == 0;
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printf " %5d,", $primes[$i];
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}
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print "\n};\n";
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