[FEATURE REQ, RFC], improving ergonomic HMI fingerprint cross verification

[Tim Mooney]

In regard to: Re: [FEATURE REQ, RFC], improving ergonomic HMI fingerprint...:

> Thus better learn the Alpha..Zulu alphabet and just use it when
> reading fingerprints to someone.

I was never in the military so I have a hard time remembering the
"international" call signs.  Hence the perl script I use (I call it
`callsign'):


#!/local/bin/perl -w

#
# Author: Tim Mooney <enchanter at users.sourceforge.net>
# Copyright: GPL
#
# TVM: convert a letter to its call-sign equivalent
#

%signs = (
 	'a'	=>	'alpha',
 	'A'	=>	'Alpha',
 	'b'	=>	'bravo',
 	'B'	=>	'Bravo',
 	'c'	=>	'charlie',
 	'C'	=>	'Charlie',
 	'd'	=>	'delta',
 	'D'	=>	'Delta',
 	'e'	=>	'echo',
 	'E'	=>	'Echo',
 	'f'	=>	'foxtrot',
 	'F'	=>	'Foxtrot',
 	'g'	=>	'golf',
 	'G'	=>	'Golf',
 	'h'	=>	'hotel',
 	'H'	=>	'Hotel',
 	'i'	=>	'india',
 	'I'	=>	'India',
 	'j'	=>	'juliet',
 	'J'	=>	'Juliet',
 	'k'	=>	'kilo',
 	'K'	=>	'Kilo',
 	'l'	=>	'lima',
 	'L'	=>	'Lima',
 	'm'	=>	'mike',
 	'M'	=>	'Mike',
 	'n'	=>	'november',
 	'N'	=>	'November',
 	'o'	=>	'oscar',
 	'O'	=>	'Oscar',
 	'p'	=>	'papa',
 	'P'	=>	'Papa',
 	'q'	=>	'quebec',
 	'Q'	=>	'Quebec',
 	'r'	=>	'romeo',
 	'R'	=>	'Romeo',
 	's'	=>	'sierra',
 	'S'	=>	'Sierra',
 	't'	=>	'tango',
 	'T'	=>	'Tango',
 	'u'	=>	'uniform',
 	'U'	=>	'Uniform',
 	'v'	=>	'victor',
 	'V'	=>	'Victor',
 	'w'	=>	'whiskey',
 	'W'	=>	'Whiskey',
 	'x'	=>	'xray',
 	'X'	=>	'Xray',
 	'y'	=>	'yankee',
 	'Y'	=>	'Yankee',
 	'z'	=>	'zulu',
 	'Z'	=>	'Zulu',
 	'9'	=>	'9er',
);



while (<>) {
 	chomp($line=$_);

 	for ($i=0; $i< length($line); $i++) {

 		$l=substr($line,$i,1);

 		if (exists($signs{$l})) {
 			print " ", $signs{$l}, " ";
 		} else {
 			print "$l";
 		}
 	}
 	print "\n";
}

exit(0);




As an example of use, I would do something like:

 	gpg --fingerprint mooney

and then cut and paste (or sed out) the fingerprint and echo it into
the program, like

 	echo "4A21 BFC1 E902 4518 968A  55A9 015F 6BA4 4757 6386" | callsign

which results in

4 Alpha 21  Bravo  Foxtrot  Charlie 1  Echo  9er 02 4518  9er 68 Alpha 55 Alpha  9er  015 Foxtrot  6 Bravo  Alpha 4 4757 6386


It would be simple to extend so that it always (or optionally) "spelled out"
the numbers (one, two, etc.) and other characters (dash, space, etc.).

Tim
-- 
Tim Mooney                              mooney at dogbert.cc.ndsu.NoDak.edu
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