Re: [COSE] [Rats] RAM requirements for COSE/CWT

2022-02-22 Thread Carsten Bormann
On 2022-02-22, at 20:45, Laurence Lundblade wrote: >> >>> The main example I can think of is EAT in pure HW (e.g., a TPM-like chip >>> that outputs EAT). Outputting fixed length integers will make that HW >>> simpler. >> >> Any CBOR decoder will be happy with decoding this. > > True, but

Re: [COSE] [Rats] RAM requirements for COSE/CWT

2022-02-22 Thread Laurence Lundblade
I’ve put the text that EAT has profiles CBOR encoding in below. > On Feb 22, 2022, at 11:09 AM, Carsten Bormann wrote: > > On 2022-02-22, at 18:08, Laurence Lundblade wrote: >> >> EAT allows for use of the different CBOR serializations just like COSE and >> CWT so particular deployments can

Re: [COSE] [Rats] RAM requirements for COSE/CWT

2022-02-22 Thread Carsten Bormann
On 2022-02-22, at 18:08, Laurence Lundblade wrote: > > EAT allows for use of the different CBOR serializations just like COSE and > CWT so particular deployments can choose what is best for them. It is > important to continue to allow all serializations in EAT for the reasons that > they

[COSE] Call for COSE Agenda Items for IETF 113 in Vienna

2022-02-22 Thread Mike Jones
Dear COSE working group members, Do you have proposed agenda items for our session at IETF 113 in Vienna? If so, please reply-all to this note. Include a title, the presenter(s), and proposed amount of time you'd like. We have a slot for 13:00-14:00 on Monday Afternoon. I'm looking

Re: [COSE] [Rats] RAM requirements for COSE/CWT

2022-02-22 Thread Laurence Lundblade
EAT allows for use of the different CBOR serializations just like COSE and CWT so particular deployments can choose what is best for them. It is important to continue to allow all serializations in EAT for the reasons that they exist in the first place. The main example I can think of is EAT

Re: [COSE] [Rats] RAM requirements for COSE/CWT

2022-02-22 Thread Carsten Bormann
Hi Anders, > The WebAuthn/FIDO specification details CBOR serialization requirements (As does COSE *for its internally constructed signing inputs*, not for what goes over the wire.) > while the EAT draft specifies multiple alternatives. Maybe we need to fix that then. > There must be a

Re: [COSE] [Rats] RAM requirements for COSE/CWT

2022-02-22 Thread Anders Rundgren
On 2022-02-22 10:08, Carsten Bormann wrote: >> On 2022-02-22, at 06:59, Anders Rundgren wrote: However, due to the myriad of CBOR serialization options,... Not true. All widely used serialization formats grant the encoder some freedoms in encoding information, CBOR is not different. There

Re: [COSE] [Rats] RAM requirements for COSE/CWT

2022-02-22 Thread Carsten Bormann
Hi Anders, > On 2022-02-22, at 06:59, Anders Rundgren > wrote: > > On 2022-02-21 17:31, Carsten Bormann wrote: >> On 2022-02-21, at 17:15, Anders Rundgren >> wrote: >>> >>> I couldn't find any valid reason for using JSON >> We seem to have found an area where we agree :-) > > In this