Re: [TLS] Using RSA PSS in TLS
Johannes Merkle <johannes.merkle@secunet.com> Mon, 28 October 2013 13:28 UTC
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Date: Mon, 28 Oct 2013 14:27:47 +0100
From: Johannes Merkle <johannes.merkle@secunet.com>
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To: Santosh Chokhani <SChokhani@cygnacom.com>, Rob Stradling <rob.stradling@comodo.com>, "<tls@ietf.org>" <tls@ietf.org>
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Subject: Re: [TLS] Using RSA PSS in TLS
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> IMO it is not necessary to define new cipher suites. The semantics of "RSA" in cipher suites (and KeyExchangeAlgorithm > indicated in the the server key exchange messages) could be widened to comply with both PKCS#1v1.5 and PSS, and the use > of PSS would be defined eligible only if it has been signaled in the "signature_algorithms" extension by the other peer. The signature algorithm that was actually used is specified (within a DigitallySigned struct) by an SignatureAndHashAlgorithm identifier of the same type as used in the "signature_algorithms" extension. Thus, the code points in this registry can be used for both signaling support of PSS and specifying the PSS as the signature algorithm that was actually selected. -- Johannes
- 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