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- Path: informatik.tu-muenchen.de!ganterth
- From: ganterth@mathematik.tu-muenchen.de (Thomas Ganter)
- Newsgroups: comp.sys.amiga.programmer
- Subject: Re: Key File Programming
- Date: 16 Feb 1996 11:03:08 GMT
- Organization: Math. Institut der TU Muenchen
- Distribution: world
- Message-ID: <1996Feb16.120308@mathematik.tu-muenchen.de>
- References: <4f9kvp$m70@rock101.genie.net> <588.6611T1313T530@datashopper.dk> <4fbg4q$ndr@ra.nrl.navy.mil> <1161.6618T1423T2585@wvlink.mpl.com>
- NNTP-Posting-Host: sunbulirsch5.mathematik.tu-muenchen.de
- X-newsreader: xrn 7.00
-
- In article <1161.6618T1423T2585@wvlink.mpl.com>, gene_heskett@wvlink.mpl.com (Gene Heskett) writes:
- |>
- |> DD> mba@datashopper.dk (Michael B Andersen) writes:
- |>
- |> >>I don't think this is accurate. The IDEA algorithem witch is freely
- |> >>available, can't be cracked, atleast until now, there has'nt been
- |> >>shown anyway into IDEA, and brute force would take 1000(maby 10 if
- |> >>You have a Cray, this is a guess) of Years.
- |>
- |> I think a small correction is in order here. Does the PGP code not use the
- |> idea encryption?
-
- If I recall right, it uses IDEA just for the decryption table, something different
- for the actuall encryption. But I might be wrong.
-
- |> That was busted, prolly a year back, but if everyone who
- |> worked on the crack got a share of that prize money, each might have been
- |> able to add a cup of coffee to their order of scones! It took that many
- |> hackers, and a 2 year effort if you believe the story that ran when it was
- |> first cracked. That was I think, with the small key, 384 bits, even less
- |> than the current min of 512 bits. A 2k key is still untouchable IMO.
-
- IMHO, this should be corrected. Not PGP was busted, but only _one_ key
- has been cracked. This does not mean that IDEA is unsafe. In my understanding,
- "to break a code" means do develop a method to decrypt any message encrypted
- with a special code (IDEA). This has not been achieved. What had happened was
- "breaking a key", meaning (IMU), that only one key for only one specific encryption
- key has been forged.
-
- If you are afraid of all the hackers of the world unifying agains you, change
- your encryption key every two years or so and deliver new keyfiles to your clients :)
-
-
-
- - Thomas
-
- ------------------------------------------------------------------------------
- Thomas Ganter Student der Mathematik
- Postweg 3 email: ganterth@mathematik.tu-muenchen.de
- 83209 Prien am Chiemsee FAX : (0) 8051 - 63179
- Bavaria, Germany Phone: (0) 8051 - 61895 & 62054
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- Mathematicians are like Frenchmen: whenever you say something to them,
- they translate it into their own language, and at once it is something
- entirely different. J. W. v. Goethe
-
-