Wireshark mailing list archives

Re: SSL decode "can't decrypt pre master secret"


From: Clinton James <cjames () callone net>
Date: Wed, 18 Nov 2009 12:49:03 -0600

It is the same key I am using to establish the SSL connection to the
server.  By a google search, I saw someone else say that transposing the
IP in the SSL preference helped.  I have tried both and can't get it to
decode.

Sake Blok wrote:
On Tue, Nov 17, 2009 at 07:50:11AM -0600, Clinton James wrote:
I can't seem to decrypt an exchange.  Google doesn't seem to give me
much either.  I hoping someone can point me in the right direction.
My client app is contacting the server WWW.XXX.YYY.ZZZ via https.
[...]
ce 7a 51 81 ff b6 d7 79 eb 8c 2c d5 5e 38 63 f8
ssl_decrypt_pre_master_secret wrong pre_master_secret length (128,
expected 48)
dissect_ssl3_handshake can't decrypt pre master secret

Are you sure the private key is the right one for the certificate
offered by site WWW.XXX.YYY.ZZZ?

Cheers,


Sake

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