Article View: sci.crypt
Article #2958secure codes
From: Yinco Schmeer
Date: Tue, 05 Jan 1993 23:56
Date: Tue, 05 Jan 1993 23:56
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1135 bytes
Don Alvarez posts:
>>It's a chicken-and-egg problem: You can't distribute a key in a secure
manner without a prior means of secure communications, but if that
means of secure communications is cryptographic, then it requires the
prior distribution of a key.<<
Yes, but there are other possibilities. First, the two people may be able
to FIND a secure channel, but it is inefficient, expensive, or there is
some other reason that it can't be used often. This method can be used to
transfer keys and then RSA used over unsecure channels from then on.
Second, both parties can have secure channels with a third party. This
was discussed in the documentation for PGP, where he discusses this idea
in full.
-Hagopes
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Path: arc1-ca.pugleaf.net!sparky!uunet!spool.mu.edu!uwm.edu!ogicse!das-news.harvard.edu!spdcc!merk!works!hagopes From: hagopes@works.uucp (Yinco Schmeer) Newsgroups: sci.crypt Subject: secure codes Message-ID: <i2PXwB1w165w@works.uucp> Date: 5 Jan 93 23:56:53 GMT Article-I.D.: works.i2PXwB1w165w Organization: The Works BBS - Informational Archives - Est. 1985 Lines: 14