Re-keying parameters in Wpa2

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crypt::dsa::keychain

Crypt::DSA::KeyChain(3pm)				User Contributed Perl Documentation				 Crypt::DSA::KeyChain(3pm)

NAME

       Crypt::DSA::KeyChain - DSA key generation system

SYNOPSIS

	   use Crypt::DSA::KeyChain;
	   my $keychain = Crypt::DSA::KeyChain->new;

	   my $key = $keychain->generate_params(
			   Size      => 512,
			   Seed      => $seed,
			   Verbosity => 1,
		     );

	   $keychain->generate_keys($key);

DESCRIPTION

       Crypt::DSA::KeyChain is a lower-level interface to key generation than the interface in Crypt::DSA (the keygen method). It allows you to
       separately generate the p, q, and g key parameters, given an optional starting seed, and a mandatory bit size for p (q and g are 160 bits
       each).

       You can then call generate_keys to generate the public and private portions of the key.

USAGE

   $keychain = Crypt::DSA::KeyChain->new
       Constructs a new Crypt::DSA::KeyChain object. At the moment this isn't particularly useful in itself, other than being the object you need
       in order to call the other methods.

       Returns the new object.

   $key = $keychain->generate_params(%arg)
       Generates a set of DSA parameters: the p, q, and g values of the key. This involves finding primes, and as such it can be a relatively long
       process.

       When invoked in scalar context, returns a new Crypt::DSA::Key object.

       In list context, returns the new Crypt::DSA::Key object, along with: the value of the internal counter when a suitable prime p was found;
       the value of h when g was derived; and the value of the seed (a 20-byte string) when q was found. These values aren't particularly useful
       in normal circumstances, but they could be useful.

       %arg can contain:

       o   Size

	   The size in bits of the p value to generate. The q and g values are always 160 bits each.

	   This argument is mandatory.

       o   Seed

	   A seed with which q generation will begin. If this seed does not lead to a suitable prime, it will be discarded, and a new random seed
	   chosen in its place, until a suitable prime can be found.

	   This is entirely optional, and if not provided a random seed will be generated automatically.

       o   Verbosity

	   Should be either 0 or 1. A value of 1 will give you a progress meter during p and q generation--this can be useful, since the process
	   can be relatively long.

	   The default is 0.

   $keychain->generate_keys($key)
       Generates the public and private portions of the key $key, a Crypt::DSA::Key object.

AUTHOR &; COPYRIGHT
       Please see the Crypt::DSA manpage for author, copyright, and license information.

perl v5.12.4							    2011-10-05						 Crypt::DSA::KeyChain(3pm)

IP Networking