07 Jun 2009 01:41:21 UTC
- Distribution: Crypt-RSA
- Module version: 1.99
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- License: perl_5
- Perl: v5.6.0
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- Latest versionVIPUL Vipul Ved Prakash
Crypt::RSA::Key - RSA Key Pair Generator.
my $keychain = new Crypt::RSA::Key; my ($public, $private) = $keychain->generate ( Identity => 'Lord Macbeth <firstname.lastname@example.org>', Size => 2048, Password => 'A day so foul & fair', Verbosity => 1, ) or die $keychain->errstr();
This module provides a method to generate an RSA key pair.
generate() generates an RSA key of specified bitsize. It returns a list of two elements, a Crypt::RSA::Key::Public object that holds the public part of the key pair and a Crypt::RSA::Key::Private object that holds that private part. On failure, it returns undef and sets $self->errstr to appropriate error string. generate() takes a hash argument with the following keys:
Bitsize of the key to be generated. This should be an even integer > 48. Bitsize is a mandatory argument.
String with which the private key will be encrypted. If Password is not provided the key will be stored unencrypted.
A string that identifies the owner of the key. This string usually takes the form of a name and an email address. The identity is not bound to the key with a signature. However, a future release or another module will provide this facility.
The block cipher which is used for encrypting the private key. Defaults to `Blowfish'. Cipher could be set to any value that works with Crypt::CBC(3) and Tie::EncryptedHash(3).
When set to 1, generate() will draw a progress display on STDOUT.
The generated key pair will be written to disk, in $Filename.public and $Filename.private files, if this argument is provided. Disk writes can be deferred by skipping this argument and achieved later with the write() method of Crypt::RSA::Key::Public(3) and Crypt::RSA::Key::Private(3).
A string that specifies the key format. As of this writing, two key formats, `Native' and `SSH', are supported. KF defaults to `Native'.
Secret (Private) Key Format. Instead of specifying KF, the user could choose to specify secret and public key formats separately. The value for SKF can be a string ("Native" or "SSH") or a hash reference that specifies a module name, its constructor and constructor arguments. The specified module is loaded with Class::Loader(3) and must be interface compatible with Crypt::RSA::Key::Private(3).
Public Key Format. This option is like SKF but for the public key.
See ERROR HANDLING in Crypt::RSA(3) manpage.
There's an inefficiency in the way generate() ensures the key pair is exactly Size bits long. This will be fixed in a future release.
Vipul Ved Prakash, <email@example.com>
Crypt::RSA(3), Crypt::RSA::Key::Public(3), Crypt::RSA::Key::Private(3), Crypt::Primes(3), Tie::EncryptedHash(3), Class::Loader(3)