Manual Reference Pages - CRYPT::DSA::KEYCHAIN (3)
Crypt::DSA::KeyChain - DSA key generation system
my $keychain = Crypt::DSA::KeyChain->new;
my $key = $keychain->generate_params(
Size => 512,
Seed => $seed,
Verbosity => 1,
Crypt::DSA::KeyChain is a lower-level interface to key
generation than the interface in Crypt::DSA (the keygen
method). It allows you to separately generate the p, q,
and g key parameters, given an optional starting seed, and
a mandatory bit size for p (q and g are 160 bits each).
You can then call generate_keys to generate the public and
private portions of the key.
CW$keychain = Crypt::DSA::KeyChain->new
Constructs a new Crypt::DSA::KeyChain object. At the moment
this isnt particularly useful in itself, other than being the
object you need in order to call the other methods.
Returns the new object.
CW$key = CW$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
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 arent particularly useful in normal
circumstances, but they could be useful.
%arg can contain:
The size in bits of the p value to generate. The q and
g values are always 160 bits each.
This argument is mandatory.
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
This is entirely optional, and if not provided a random seed will
be generated automatically.
Should be either 0 or 1. A value of 1 will give you a progress
meter during p and q generationthis can be useful, since
the process can be relatively long.
The default is 0.
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 v5.20.3 ||CRYPT::DSA::KEYCHAIN (3) ||2011-06-17 |
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