Re: [TLS] MITM Attacks on Client Authentication after Resumption
mrex@sap.com (Martin Rex) Wed, 05 March 2014 13:41 UTC
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To: Karthik Bhargavan <karthik.bhargavan@gmail.com>
Date: Wed, 05 Mar 2014 14:40:53 +0100
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Subject: Re: [TLS] MITM Attacks on Client Authentication after Resumption
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Karthik Bhargavan wrote: > > The only "non-static" data covered by the Finished handshake messages of > > the abbbreviated TLS handshake (i.e. that goes into the renegotiation_info > > of the resumed TLS handshake are): > > > > ClientHello.random > > ServerHello.random > > ClientHello.session_id == ServerHello.session_id > > > > Renego Indication uses the client and server verify data: > > verify_data = PRF(master_secret, label, Hash(handshake_message) > > So, it is bound to the master_secret *Blush* You're correct. I'm sorry for the confusion. -Martin
- [TLS] MITM Attacks on Client Authentication after… Karthikeyan Bhargavan
- Re: [TLS] MITM Attacks on Client Authentication a… Paterson, Kenny
- Re: [TLS] MITM Attacks on Client Authentication a… Dr Stephen Henson
- Re: [TLS] MITM Attacks on Client Authentication a… Karthikeyan Bhargavan
- Re: [TLS] MITM Attacks on Client Authentication a… Martin Thomson
- Re: [TLS] MITM Attacks on Client Authentication a… Paterson, Kenny
- Re: [TLS] MITM Attacks on Client Authentication a… Adam Langley
- Re: [TLS] MITM Attacks on Client Authentication a… Martin Rex
- Re: [TLS] MITM Attacks on Client Authentication a… Andrei Popov
- Re: [TLS] MITM Attacks on Client Authentication a… Watson Ladd
- Re: [TLS] MITM Attacks on Client Authentication a… Adam Langley
- Re: [TLS] MITM Attacks on Client Authentication a… Martin Rex
- Re: [TLS] MITM Attacks on Client Authentication a… Salz, Rich
- Re: [TLS] MITM Attacks on Client Authentication a… Watson Ladd
- Re: [TLS] MITM Attacks on Client Authentication a… Nico Williams
- Re: [TLS] MITM Attacks on Client Authentication a… Dr Stephen Henson
- Re: [TLS] MITM Attacks on Client Authentication a… Martin Thomson
- Re: [TLS] MITM Attacks on Client Authentication a… Dr Stephen Henson
- Re: [TLS] MITM Attacks on Client Authentication a… Adam Langley
- Re: [TLS] MITM Attacks on Client Authentication a… Martin Rex
- Re: [TLS] MITM Attacks on Client Authentication a… Daniel Kahn Gillmor
- Re: [TLS] MITM Attacks on Client Authentication a… Nico Williams
- Re: [TLS] MITM Attacks on Client Authentication a… Bodo Moeller
- Re: [TLS] MITM Attacks on Client Authentication a… Xuelei Fan
- Re: [TLS] MITM Attacks on Client Authentication a… Martin Rex
- Re: [TLS] MITM Attacks on Client Authentication a… Adam Langley
- Re: [TLS] MITM Attacks on Client Authentication a… Karthik Bhargavan
- Re: [TLS] MITM Attacks on Client Authentication a… Karthik Bhargavan
- Re: [TLS] MITM Attacks on Client Authentication a… Martin Rex
- Re: [TLS] MITM Attacks on Client Authentication a… Xuelei Fan
- Re: [TLS] MITM Attacks on Client Authentication a… Karthik Bhargavan
- Re: [TLS] MITM Attacks on Client Authentication a… Xuelei Fan
- Re: [TLS] MITM Attacks on Client Authentication a… Liz meeks