[52392] in Cypherpunks
Re: IPG cracked with known plaintext
daemon@ATHENA.MIT.EDU (Ted Garrett)
Wed Mar 20 20:23:39 1996
Date: Wed, 20 Mar 1996 20:06:26 -0500
To: cypherpunks@toad.com
From: Ted Garrett <teddygee@visi.net>
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At 05:32 PM 3/19/96 GMT, you wrote:
>First let us describe the IPG system in more conventional C:
[snip]
>So this algorithm is easily broken with known plaintext.
I seem to remember some sales named daemon stating that if anyone could break their system, the prize would be the company. I imagine that the continuing rants from IPG are a means of devaluing the company beyond it's already measly worth, thus making the company unworth claiming. It's obvious that the system has been trivially broken after a day and a half of being semi-published.
Is there any other point to this?
I could as easily generate an OTP pulling pages at random from the New England Journal Of Medicine or the Microsoft Visual C++ Programmer's Guide and XORing the text with my plaintext...
But that still leaves me in the cipher.obscurity = cipher.security realm, doesn't it? Think we could sell it??? Of course, as long as it was someone else choosing the pages, I could trust it, right? (Damn, which smiley is it for sarcasm?)
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Ted Garrett <teddygee@visi.net> http://www.visi.net/~teddygee
"Those who desire to give up Freedom in order to gain
Security will not have, nor do they deserve, either one."
Thomas Jefferson
