56 lines
1.4 KiB
Perl
56 lines
1.4 KiB
Perl
package Alt::Crypt::RSA::BigInt;
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use strict;
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use warnings;
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BEGIN {
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$Alt::Crypt::RSA::BigInt::AUTHORITY = 'cpan:DANAJ';
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$Alt::Crypt::RSA::BigInt::VERSION = '0.06';
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}
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=pod
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=head1 NAME
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Alt::Crypt::RSA::BigInt - RSA public-key cryptosystem, using Math::BigInt
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=head1 DESCRIPTION
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This is a modification of the Crypt::RSA module to remove all use and
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dependencies on Pari and Math::Pari.
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This first version is intended to be a plug-in replacement for Crypt::RSA,
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with no user-visible changes. This means some issues will remain
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unresolved until future versions.
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Math::Pari is completely removed. This includes the two modules:
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- Crypt::Primes => Math::Prime::Util
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- Crypt::Random => Math::Prime::Util
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All operations are now performed using Math::BigInt, and prefer the
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GMP and Pari backends.
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=head1 PERFORMANCE
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Performance using GMP is 3-10 times faster than Crypt::RSA 1.99.
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Using Math::BigInt::Pari, it is about half the speed at signing, and
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on par when verifying.
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If neither GMP nor Pari are available, performance is very slow, from
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10x to 200x slower. However this is an environment where the original
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code could not run.
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=head1 AUTHORS
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Vipul Ved Prakash wrote the original Crypt::RSA.
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Dana Jacobsen did the changes to Math::BigInt.
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=head1 COPYRIGHT AND LICENSE
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Copyright (c) 2001 by Vipul Ved Prakash, 2012 by Dana Jacobsen.
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This program is free software; you can redistribute it and/or modify it
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under the same terms as Perl itself.
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