Re: [TLS] Using RSA PSS in TLS
CodesInChaos <codesinchaos@gmail.com> Wed, 14 January 2015 14:32 UTC
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Date: Wed, 14 Jan 2015 15:32:42 +0100
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From: CodesInChaos <codesinchaos@gmail.com>
To: Florian Weimer <fweimer@redhat.com>
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Subject: Re: [TLS] Using RSA PSS in TLS
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On Wed, Jan 14, 2015 at 3:15 PM, Florian Weimer <fweimer@redhat.com> wrote: > What about changing PFS for the RSA ciphersuites so that they continue to > use RSA encryption, and not rely on an RSA signature for server > authentication? Switching from PKCS#1v1.5 encryption to OAEP is just as tricky as switching from PKCS#1v1.5 signing to PSS signatures. I consider the risk of PKCS#1v1.5 encryption far bigger than the risk of PKCS#1v1.5 signatures. I'm not aware of any attack against PKCS#1v1.5 signatures, they merely lack a security proof. PKCS#1v1.5 encryption is problematic since detectable decryption failures can act as an oracle. Implementations need to be really careful to avoid these.
- Re: [TLS] Using RSA PSS in TLS Johannes Merkle
- Re: [TLS] Using RSA PSS in TLS Peter Gutmann
- Re: [TLS] Using RSA PSS in TLS Santosh Chokhani
- [TLS] Using RSA PSS in TLS Johannes Merkle
- Re: [TLS] Using RSA PSS in TLS Hanno Böck
- Re: [TLS] Using RSA PSS in TLS Johannes Merkle
- Re: [TLS] Using RSA PSS in TLS Johannes Merkle
- Re: [TLS] Using RSA PSS in TLS Peter Gutmann
- Re: [TLS] Using RSA PSS in TLS Santosh Chokhani
- Re: [TLS] Using RSA PSS in TLS Santosh Chokhani
- Re: [TLS] Using RSA PSS in TLS Rob Stradling
- Re: [TLS] Using RSA PSS in TLS Martin Rex
- Re: [TLS] Using RSA PSS in TLS Johannes Merkle
- Re: [TLS] Using RSA PSS in TLS Johannes Merkle
- Re: [TLS] Using RSA PSS in TLS Johannes Merkle
- Re: [TLS] Using RSA PSS in TLS Johannes Merkle
- Re: [TLS] Using RSA PSS in TLS Florian Weimer
- Re: [TLS] Using RSA PSS in TLS CodesInChaos
- Re: [TLS] Using RSA PSS in TLS Fedor Brunner
- Re: [TLS] Using RSA PSS in TLS Hanno Böck
- Re: [TLS] Using RSA PSS in TLS Hanno Böck
- Re: [TLS] Using RSA PSS in TLS Martin Rex
- Re: [TLS] Using RSA PSS in TLS Geoffrey Keating
- Re: [TLS] Using RSA PSS in TLS Watson Ladd
- Re: [TLS] Using RSA PSS in TLS Johannes Merkle
- Re: [TLS] Using RSA PSS in TLS Manuel Pégourié-Gonnard
- Re: [TLS] Using RSA PSS in TLS Peter Gutmann
- Re: [TLS] Using RSA PSS in TLS Peter Gutmann
- Re: [TLS] Using RSA PSS in TLS Martin Rex
- Re: [TLS] Using RSA PSS in TLS Peter Gutmann