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Re: Any SSL3 DH Key Exchange servers out there?

From: Christopher Allen <ChristopherA@consensus.com>
Date: Tue, 28 Jan 1997 08:14:36 -0800
Message-Id: <v03007802af13d5d73e56@dynamic-addr-192.consensus.com>
To: dpkemp@missi.ncsc.mil (David P. Kemp)
Cc: ssl-talk@netscape.com, ietf-tls@www10.w3.org
At 5:43 AM -0800 1/28/97, David P. Kemp wrote:
>It's true that "mix and match" CipherSuites are cause for concern and
>need to be carefully analyzed.  And, as Wagner&Schneier points out,
>SSLRef 3.0b1 (a beta version) failed to include a check for the change
>cipher suite message, which could cause a problem with
>authentication-only CipherSuites but not with encrypted CipherSuites.
>This was an implementation error, not a protocol specification error,
>but I agree with W&S that the protocol specification should be changed
>to be more resistant to implementation errors.

BTW, that particular bug was fixed in SSLRef 3.0 final, and of course in
SSL Plus. I suspect that there are a number of proprietary implementations
that have similar bugs.

Also, my belief is that the above "implementation" error will be covered
when we release the new TLS draft.

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..Christopher Allen                  Consensus Development Corporation..
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Received on Tuesday, 28 January 1997 11:24:42 EST

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