Subject: CVS commit: pkgsrc/security/ent
From: Alistair G. Crooks
Date: 2013-04-25 18:24:55
Message id:

Log Message:
Import ent-19981020 into the Packages Collection.

Originally packaged for wip by evaldo - thanks!

	ent is a program which applies various tests to sequences of
	bytes stored in files and reports the results of those tests.
	The program is useful for those evaluating pseudorandom number
	generators for encryption and statistical sampling
	applications, compression algorithms, and other applications
	where the information density of a file is of interest.

(Modified by me only to hold the distfile in a DIST_SUBDIR, since
the filename has the possibility to clash with other things)

An example of its usage:

	% dd if=/dev/urandom bs=1k count=10 | ent
	10+0 records in
	10+0 records out
	10240 bytes transferred in 0.001 secs (10240000 bytes/sec)
	Entropy = 7.977398 bits per byte.

	Optimum compression would reduce the size
	of this 10240 byte file by 0 percent.

	Chi square distribution for 10240 samples is 321.50, and randomly
	would exceed this value 0.30 percent of the times.

	Arithmetic mean value of data bytes is 128.5722 (127.5 = random).
	Monte Carlo value for Pi is 3.195779601 (error 1.72 percent).
	Serial correlation coefficient is -0.003620 (totally uncorrelated = 0.0).