Can someone please write the note that Jim described on how to use CTR to build new modes, including ECB? Then I'm ok with closing. -- Mike ________________________________ From: Richard Barnes<mailto:rlb@ipv.sx> Sent: ý2/ý20/ý2014 12:26 PM To: Mark Watson<mailto:watsonm@netflix.com> Cc: Jim Schaad<mailto:ietf@augustcellars.com>; public-webcrypto@w3.org<mailto:public-webcrypto@w3.org> Subject: Re: Bug #23500 - Raw AES Access Fine with me. On Thu, Feb 20, 2014 at 3:19 PM, Mark Watson <watsonm@netflix.com<mailto:watsonm@netflix.com>> wrote: So, does anyone object to closing Bug 23500 as WONTFIX ? ...Mark On Wed, Feb 19, 2014 at 9:42 AM, Jim Schaad <ietf@augustcellars.com<mailto:ietf@augustcellars.com>> wrote: Take #2 on this issue. Looking at things last night, as long as we don’t have a streaming mode of operation, it does not appear that using a ECB mode is going to be any more efficient than using either CBC or CTR as the basis for building something like an SIV mode. Since one is going to need to create a new encrypt Promise for each block in order to chain things together. Since this means that currently the only way to be use ECB mode in an efficient manner is to use it as ECB, I would say that we should not include it. It might however be worth having a note about how to use CTR mode to build new modes in the future in script. This decision would then be re-visited when we have streaming as a primitive operation. Jim
Received on Thursday, 20 February 2014 20:30:11 UTC