Crypt::RSA Crypt::RSA is a RSA public-key cryptosystem.
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Perl module RSA RSA public-key public-key cryptosystem public-key cryptosystem

Crypt::RSA Description

Crypt::RSA is a RSA public-key cryptosystem. Crypt::RSA is a RSA public-key cryptosystem.SYNOPSIS my $rsa = new Crypt::RSA; my ($public, $private) = $rsa->keygen ( Identity => 'Lord Macbeth ', Size => 1024, Password => 'A day so foul & fair', Verbosity => 1, ) or die $rsa->errstr(); my $cyphertext = $rsa->encrypt ( Message => $message, Key => $public, Armour => 1, ) || die $rsa->errstr(); my $plaintext = $rsa->decrypt ( Cyphertext => $cyphertext, Key => $private, Armour => 1, ) || die $rsa->errstr(); my $signature = $rsa->sign ( Message => $message, Key => $private ) || die $rsa->errstr(); my $verify = $rsa->verify ( Message => $message, Signature => $signature, Key => $public ) || die $rsa->errstr();NOTEThis manual assumes familiarity with public-key cryptography and the RSA algorithm. If you don't know what these are or how they work, please refer to the sci.crypt FAQ. A formal treatment of RSA can be found in .Crypt::RSA is a pure-perl, cleanroom implementation of the RSA public-key cryptosystem. It uses Math::Pari(3), a perl interface to the blazingly fast PARI library, for big integer arithmetic and number theoretic computations.Crypt::RSA provides arbitrary size key-pair generation, plaintext-aware encryption (OAEP) and digital signatures with appendix (PSS). For compatibility with SSLv3, RSAREF2, PGP and other applications that follow the PKCS #1 v1.5 standard, it also provides PKCS #1 v1.5 encryption and signatures.Crypt::RSA is structured as bundle of modules that encapsulate different parts of the RSA cryptosystem. The RSA algorithm is implemented in Crypt::RSA::Primitives(3). Encryption schemes, located under Crypt::RSA::ES, and signature schemes, located under Crypt::RSA::SS, use the RSA algorithm to build encryption/signature schemes that employ secure padding. (See the note on Security of Padding Schemes.)The key generation engine and other functions that work on both components of the key-pair are encapsulated in Crypt::RSA::Key(3). Crypt::RSA::Key::Public(3) & Crypt::RSA::Key::Private(3) provide mechanisms for storage & retrival of keys from disk, decoding & encoding of keys in certain formats, and secure representation of keys in memory. Finally, the Crypt::RSA module provides a convenient, DWIM wrapper around the rest of the modules in the bundle. Requirements: · Perl

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