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Date: 1999-02-11

Nagelprobe: PGP 6.02 Source Code wird evaluiert


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Zum Programm ist seit gestern auch der Source Code für
PGP 6.02 öffentlich verfügbar. Die Gemeinde der
Zyffer/zampanos hat damit wieder was zu lesen: 10.00
Seiten Code, ob der nicht doch irgendwo 1 Hintertürchen,
das allen Beteuerungen des Oberbosses Bill Larson zum
Trotze für die Interessen gewisser Dienste eingebaut sein
könnte, enthält.

Wie der nicht unmühsame Weg, trotz US-Exportverbot freies
PGP in die Welt zu bringen, funktioniert, hat einer der
Proofreader, Teun Nijssen [NL], anhand der 5.xer Versionen
in einer Mail an Oberdistributor Stale Schumacher [NO] &
andere formuliert.

Code
http://keyserver.ad.or.at/pgp/

relayed by
Michael "Security" Sicher sicher@sicher.at

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-----BEGIN PGP SIGNED MESSAGE-----

Hello Ingmar,

there are no secrets in this reply; you may do with it
whatever you like.

/I was somewhat surprised how suddenly and fast PGP5.5(i)
was scanned *and* /proofread.

Thank you.

/Having participated in the proofreading of the 5.0i version and
with the /amount of time spent by the "correctors" all over the
world in mind, I had /the impression that 5.5 was there and
proofread like "a bolt out of the /blue"!

It took roughly 100 hours of stamina, between Christmas and
5 January to scan the complete 5.5 books and to correct the
5000 pages of the PGPsdk and Win version.

Scanning was no longer an issue, as we had now an
Automatic Document Feeder for the HP Scanjet 4C at our
disposal. This ADF has been the hero of the two weeks:
actually it did not scan 7500 pages ("tools" book + 5.5) but
about 10.000 pages, since an initial set of about 3000 pages
was discarded when the OCR quality proved not optimal yet.
This wonderful ADF misfed exactly zero pages on all this
effort. It can contain 50 pages input, so 10.000 pages require
200 manual interventions 30 minutes separated from each
other (the HP Scanjet 4C combined with Omnipage Pro
takes a little bit less than 30 seconds per page). One
Pentium did nothing but scanning, several days starting at
9:00 and finishing around 23:00.

The reason that correction went so much better than on
either of the two editions of PGP 5.0 was in the new format of
the books. The fonts are now excellent, including visible 'tab'
characters (kind of triangles), visible spaces (if more than one
space is used somewhere, the second one is printed as a
tiny black triangle) and a special 'underscore' with little curls.
This new book format is supported by a truely marvelous new
'repair' utility, that obviously was optimized to correct the
results that come from using an Omnipage version HP
Scanjet 4c: the intro of the book "Tools for Publishing Source
Code via OCR" describe setting-up the OCR on a
Mac/Omnipage/HP 4c.

Anyway, repairing 100 pages now takes 4 hours worst case
(if very many visible spaces are used: Omnipage often mis-
counts multiple visible spaces). And best case: 100 pages
can be repaired in half an hour. That is twice the speed of
scanning.

The true horror of PGP 5.0 was the BINARIES.ZIP file. It was
done within 8 hours for 5.5 Windows. The trick was simply to
manually delete any page that contained any error. Then run
the 'sortpage' utility to report what was missing and *re-scan*
those pages. In this way it went from 217 pages to 30 and
then to only 6 pages that needed real correction, because at
the margin of these pages some lines had not got enough
black ink from the book print process.

/Did you get any special ...emmmm...support?

very definitely not! Neither would we have accepted it should
it have been available. It was not available. We think this
game should be played "by the book" (sic).

The books were simply an order of magnitude better. I think
that someone at PGP Inc really tested scanning this time,
before printing. Now if they print a next bookset, let's hope
they pretty-print everything, discarding trailing visible
whitespace and replacing initial spaces by tabs on all lines...

/Or did I just miss a "call for volunteers" etc. like the one that
/preceeded the release of PGP5.0i?

Nope, there was no call this time, because Stale and me
could do it alone.

/I am very interested in a satisfying answer to this question,
for it is /closely related to the credibility of the international
PGP website and /the new software version.

I agree with that objective. That is the reason that I wrote this
answer as extensively as I did and why I permit you to
publish it as widely as you like.

cheers,

teun

Senior Project Manager Computer Centre Tilburg University

-----BEGIN PGP SIGNATURE----- Version: PGP for Personal
Privacy 5.0i Charset: noconv

iQCVAwUBNMhynGyh0IcGee2RAQGtSAP+NFPCT/x+fbFEK
8kwS6S69/DEXe1qqta9
25XyEkU+kwO71J+zUSCHyUtjUIqXgvIbi0+7fVVuiaDvL9bS+2
SmAzejnhbYj/iL
hZ91H5QHPz+qr4Xhw2BZg64M69WUtwnEemZWQvRvxD8sU
S4ICJ0Gqoob+nS4SFJT ezm8w6QPooo= =tXC9 -----END
PGP SIGNATURE-----

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edited by Harkank
published on: 1999-02-11
comments to office@quintessenz.at
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