[CODE] Signing Web Pages

Thu Feb 8 02:55:32 PST 1996

Oops - minor correction.  Note that the document to be signed must be 
specified relative to your HTTPD public directory - or change ADDLINE 
appropriately.  Caveat emptor or whatever...

#! /bin/sh
#
# signit - use PGP to sign a web page
#
# usage: signit document
#
# Note that to generate correct links for the PGP signature page, it is
# necessary to specify the document relative to your HTTP public directory
# (/etc/httpd/public_html or whatever), or change ADDLINE appropriately...
#
# Written 02/08/96 by Ed Carp (ecarp at netcom.com)
#
# This could conceptually be used to sign (and optionally verify)
# shell scripts, etc.  The possibilities are endless...
#

#
# Set up some variables...
#

# Change this if you're so inclined...
PGPHELP="http:\/\/www.yahoo.com\/Computers\/Security_and_Encryption"

# Look for this text in the document
LOOKFOR="This web page has been signed with"
ADDLINE="$LOOKFOR <A HREF=$PGPHELP>PGP<\/A>.  To see the digital signature, click <A HREF=$1.asc.html>here<\/A>."

#
# First, we need to make sure that the page hasn't already been signed...
#

F=`grep "^$LOOKFOR" $1|wc -l`
F="`echo $F`"
# If it hasn't already been signed, add signature line
if [ "$F" = "0" ]; then
	echo Adding PGP signature HTML to document
	echo "s/<\/BODY>/$ADDLINE<\/BODY>/g" > $1.temp.$$
	echo "s/<\/body>/$ADDLINE<\/body>/g" >> $1.temp.$$
	sed -f $1.temp.$$ < $1 > $1.$$
	rm -f $1.temp.$$
	mv $1.$$ $1
fi
pgp -asb $1
# Add rudimentary HTML
echo "<HTML><HEAD><TITLE>PGP Digital Signature of $1</TITLE></HEAD>" > $1.$$
echo "<BODY><I>PGP Digital Signature generated `date`</I><HR><PRE>" >> $1.$$
cat $1.asc >> $1.$$
echo "</PRE></BODY></HTML>" >> $1.$$
mv $1.$$ $1.asc.html
rm $1.asc
echo Done.
--
Ed Carp, N7EKG    			Ed.Carp at linux.org, ecarp at netcom.com
					214/993-3935 voicemail/digital pager
					800/558-3408 SkyPager
Finger ecarp at netcom.com for PGP 2.5 public key		an88744 at anon.penet.fi

"Past the wounds of childhood, past the fallen dreams and the broken families,
through the hurt and the loss and the agony only the night ever hears, is a
waiting soul.  Patient, permanent, abundant, it opens its infinite heart and
asks only one thing of you ... 'Remember who it is you really are.'"

                    -- "Losing Your Mind", Karen Alexander and Rick Boyes

The mark of a good conspiracy theory is its untestability.
		    -- Andrew Spring
----------------------------------------------------------------------
According to the Communications Decency Act, these are the words you may
no longer use in your Internet correspondence:  Shit, piss, fuck, cunt,
cock-sucker, mother-fucker and tits. The use of shit, piss, fuck, cunt,
cock-sucker, mother-fucker and tits, may now earn you a substantial fine
as well as possible jail time, should President Clinton sign this Bill
into law.  Please refrain from using shit, piss, fuck, cunt, cock-sucker,
mother-fucker and tits, to protect your children as well as others, from
their evil influence, thus keeping America "ideologically pure".