Re: [Ace] Asymmetric signature performance

2017-02-10 Thread Mohit Sethi
Hi Derek A small comment on ECC performance inline. On 02/09/2017 05:10 PM, Derek Atkins wrote: Mike, Michael StJohns writes: On 2/8/2017 8:19 AM, Mohit Sethi wrote: Hi Mike At least with our measurements on an 8-bit microprocessor platform, 1024-bit RSA exponentiation was extremely slow

Re: [Ace] Fwd: New Version Notification for draft-ietf-ace-oauth-authz-05.txt

2017-02-10 Thread Renzo Navas
Hi Ludwig and ACE ML, Thank you very much Ludwig for your effort, I have not yet read the new version of the draft, but I already had some thoughts about the "Client Token" (CT) concept, so I give a partial response to your questions (also in the hope to trigger the discussion on the ML): a) I th

Re: [Ace] Asymmetric signature performance

2017-02-10 Thread Joona Kannisto
Moi Mohit, One note on the timing constraints, if you use, for example, the Schnorr signature system you can precompute the group operation and do only one hash and one field operation with the fresh data. Similar optimization could be done for DSA, but it is more commonly mentioned in the Schn

Re: [Ace] Asymmetric signature performance

2017-02-10 Thread Derek Atkins
Hi, Mohit Sethi writes: > Regarding the performance of 160-bit ECDSA on our 8-bit platform. We > experimented with a couple of different libraries and found that the > signature operation took anywhere between 800 ms - 2000 ms. The exact > numbers can be found in Tables 2,3,4,5 and 6 of the draf

Re: [Ace] draft-somaraju-ace-multicast

2017-02-10 Thread Jim Schaad
See inline From: Ace [mailto:ace-boun...@ietf.org] On Behalf Of Somaraju Abhinav Sent: Thursday, February 9, 2017 2:47 AM To: Jim Schaad ; draft-somaraju-ace-multic...@tools.ietf.org Cc: 'ace' Subject: Re: [Ace] draft-somaraju-ace-multicast Comment inline From: Somaraju Abhinav [mailto