.\" $OpenBSD: ent.1,v 1.2 2013/11/27 22:51:55 jca Exp $
.TH ENT 1

.SH NAME
ent - pseudo random number sequence test

.SH SYNOPSIS
ent [ -b -c -f -t -u ] [ infile ]

.SH DESCRIPTION

Preforms Entropy, Chi-square, Arithmetic Mean, Monte-Carlo-Pi and Serial Correlation tests. 

.SH OPTIONS

.B -b
	The input is treated as a stream of bits rather than bytes.

.B -c
	Print a table of the number of occurrences of each possible byte (or bit, if the -b option is also specified) value, and the fraction of the overall file made up by that value. Printable characters in the ISO 8859-1 Latin-1 character set are shown along with their decimal byte values.

.B -f
	Fold upper case letters to lower case before conducting tests. Folding is done based on the ISO 8859-1 Latin-1 character set.

.B -t
	Terse mode output is written in Comma Separated Value (CSV) format.

.B -u
	Print basic usage information.

.SH FILES

If no infile is specified, ent reads from stdin. Output is always written to stdout. ent processes one infile at a time.

.SS TERSE MODE OUTPUT FORMAT

In Terse mode, row 0 is a header row which identifies the content of row 1. If the -c option is specified, rows 2 and 3, which contain character count information, are appended. If the -b option is specified, only two type 3 rows are shown for bits 0 and 1. Otherwise, 256 type 3 rows are shown, one for each possible byte.