Add p5-Data-Entropy 0.000, entropy (randomness) management.

PR:		ports/100547
Submitted by:	Gea-Suan Lin <gslin at gslin.org>

1 files changed, 20 insertions, 0 deletions

diff --git a/security/p5-Data-Entropy/pkg-descr b/security/p5-Data-Entropy/pkg-descr
new file mode 100644
index 000000000000..3825452302d4
--- /dev/null
+++ b/security/p5-Data-Entropy/pkg-descr
@@ -0,0 +1,20 @@
+This module maintains a concept of a current selection of entropy
+source. Algorithms that require entropy can use the source nominated
+by this module, avoiding the need for entropy source objects to be
+explicitly passed around. This is convenient because usually one
+entropy source will be used for an entire program run and so an
+explicit entropy source parameter would rarely vary. There is also a
+default entropy source, avoiding the need to explicitly configure a
+source at all.
+
+If nothing is done to set a source then it defaults to the use of
+Rijndael (AES) in counter mode (see
+Data::Entropy::RawSource::CryptCounter and Crypt::Rijndael), keyed
+using Perl's built-in rand function. This gives a data stream that
+looks like concentrated entropy, but really only has at most the
+entropy of the rand seed. Within a single run it is cryptographically
+difficult to detect the correlation between parts of the
+pseudo-entropy stream. If more true entropy is required then it is
+necessary to configure a different entropy source.
+
+WWW:	http://search.cpan.org/dist/Data-Entropy/