Skip to main content
10 events
when toggle format what by license comment
Oct 7, 2021 at 6:58 history edited CommunityBot
replaced http://tools.ietf.org/html/rfc with https://www.rfc-editor.org/rfc/rfc
Apr 4, 2014 at 16:39 vote accept Eddie
Apr 4, 2014 at 7:37 answer added Henrick Hellström timeline score: 10
Apr 3, 2014 at 15:01 comment added Eddie Henrick, would you care to post an answer so I can mark yours as the right answer? I can't do that to a comment. (even if its just a copy and paste from your comment, so you can at least get the credit).
Mar 30, 2014 at 4:59 history tweeted twitter.com/#!/StackSecurity/status/450135246399619072
Mar 30, 2014 at 0:53 history migrated from crypto.stackexchange.com (revisions)
Mar 29, 2014 at 14:28 comment added Henrick Hellström AEAD datatracker.ietf.org/doc/rfc5246/?include_text=1 section 6.2.3.3. Your IV explanation seems adequate enough, but it depends on the context of course.
Mar 29, 2014 at 14:21 comment added Eddie Could you tell me where in the RFC the changes to line 4 if an AEAD cipher is negotiated exist? I'd like to do some further reading. As for the IV, since a CBC cipher repeatedly performs an encryption computation using data from the last computation to 'seed' the current one, the IV simply provides a 'starting point' for that first computation. Would that suffice as a layman's explanation of why the IV is needed?
Mar 29, 2014 at 8:41 comment added Henrick Hellström For TLS 1.0, this is correct. In TLS 1.1 (and later) you will also get an explicit IV between line 01 and 02 if a CBC mode cipher is negotiated. In TLS 1.2 an AEAD cipher might be negotiated, which means line 04 will depend on the cipher.
Mar 29, 2014 at 0:33 history asked Eddie CC BY-SA 3.0