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Nov 13, 2017 at 15:34 vote accept user120513
Nov 7, 2017 at 23:29 comment added user120513 @dave_thompson_085: Thank you very much. That clears things altogether: "The names DH_DSS, DH_RSA, ECDH_ECDSA, and ECDH_RSA are historical" (RFC5246, 7.4.2). So, actually, DSS and RSA doesn't have a meaning in the (EC)DH-cipher suites.
Nov 7, 2017 at 23:13 answer added user120513 timeline score: 1
Nov 7, 2017 at 23:05 history edited user120513 CC BY-SA 3.0
added 193 characters in body; edited title
Nov 7, 2017 at 22:49 comment added dave_thompson_085 TLSv1.2 changes this; see the text on page 49 just after the itemized list in section 7.4.2 of rfc5246. Also it's spelled 'ephemeral'. And by convention in DH x is the private key for either party and y = g^x mod p is the corresponding publickey for that party.
Nov 7, 2017 at 22:46 comment added user120513 @StackzOfZtuff: Thanks for the link. (1) The don't think it's a duplicate of the linked question because the context of the other question is in essence forward security while my question is more about the notation of the DH-cipher suites. (2) But the accepted answer in the linked question also answers my question: It links RFC2246 where it is specified that, e.g., DH_RSA means a DH certificate that is signed by RSA.
Nov 7, 2017 at 22:08 review Close votes
Nov 8, 2017 at 21:39
Nov 7, 2017 at 21:52 comment added StackzOfZtuff Possible duplicate of How does non-ephemeral Diffie-Hellman key exchange become compromised in SSL when the RSA private key is leaked?
Nov 7, 2017 at 21:42 comment added StackzOfZtuff Related: security.stackexchange.com/questions/37797/…
Nov 7, 2017 at 19:30 comment added user120513 Just to add: I know that in practice on uses ephermal Diffie-Hellmann because of PFS. However, I want to understand if cipher suites like TLS_DH_RSA_WITH_* makes sense or should be rather TLS_DH_WITH_* (i.e. RSA, DSS omitted).
Nov 7, 2017 at 19:14 history asked user120513 CC BY-SA 3.0