1993-12-14 - Re: Sun secure RPC

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From: smb@research.att.com
To: Peter shipley <shipley@merde.dis.org>
Message Hash: fb14db1bd52ed606671ca255b0a1714a6537b6a9c62411eb0019382299fb9534
Message ID: <9312141153.AA22625@toad.com>
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UTC Datetime: 1993-12-14 11:53:52 UTC
Raw Date: Tue, 14 Dec 93 03:53:52 PST

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From: smb@research.att.com
Date: Tue, 14 Dec 93 03:53:52 PST
To: Peter shipley <shipley@merde.dis.org>
Subject: Re: Sun secure RPC
Message-ID: <9312141153.AA22625@toad.com>
MIME-Version: 1.0
Content-Type: text/plain


	 I remember a referance to Sun's secure RPC where the puplic key
	 was "insecure" because the it did not use a large "key" (to few bits?)
	.

	 does anyone one have info on this?

	 		-Pete

Yup.  The modulus is too small, and the key exchange was cryptanalyze
by LaMacchia and Odlyzko.  See

@article{nfscrack,
   author = {Brian A. LaMacchia and Andrew M. Odlyzko},
   journal = {Designs, Codes, and Cryptography},
   pages = {46--62},
   title = {Computation of Discrete Logarithms in Prime Fields},
   volume = {1},
   year = {1991},
}





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