Stream: wasi-crypto

Topic: Working Group Meeting (Proposed)

Richard Zak (Aug 22 2022 at 21:43):

I propose we have a recurring bi-weekly meeting Tuesday at 16:00 UTC, 12:00 Eastern, 09:00 Pacific starting next Tuesday, 30 August. Does that work?
https://meet.google.com/moe-zwuu-hag

Nick Vidal (Aug 23 2022 at 14:32):

Hi @Richard Zak I would be interested in attending the meeting. Anyone else?

Richard Zak (Aug 23 2022 at 16:40):

Changing to start on 06 September to avoid conflict with Wasi Community meetings.
Google Calendar link: https://calendar.google.com/event?action=TEMPLATE&tmeid=MzdlaGNzdDczM2Y4NmtrOHVscHJrNXJpNWNfMjAyMjA5MDZUMTYwMDAwWiByaWNoYXJkLnpha0Bwcm9maWFuLmNvbQ&tmsrc=richard.zak%40profian.com&scp=ALL

bstrie (Aug 24 2022 at 14:11):

@Richard Zak the event link doesn't work for me, can you invite me?

Andrew Brown (Jan 12 2023 at 22:55):

@Frank Denis, @Richard Zak, @Nathaniel McCallum: I would like to invite a couple of fellow Intel team members to the wasi-crypto meeting on January 24th. Is that meeting still going to happen and can I have a few minutes on the agenda to introduce them?

Richard Zak (Jan 12 2023 at 23:57):

Sure, can you list or send me their emails? I'd like to start having emails so that I can cancel if needed (like for holidays) instead of people not showing up. richard@profian.com

Frank Denis (Jan 13 2023 at 17:31):

Hi Andrew! Of course, you're welcome to join! I'll be traveling on January 24th and won't be able to join, though. But maybe we can do it next week?

Richard Zak (Jan 24 2023 at 21:48):

Some points from today's call:

• Sight glass for Wasi benchmarking https://github.com/bytecodealliance/sightglass, has some crypto benchmarks, maybe add Wasi-Crypto?
• Rust Crypto: AEAD needs new state object if new nonce, can this be avoided? Adds overhead, needed?
• Intel wants to have support for accelerators (intrinsics, Intel libs) in wasi-crypto, wants to contribute code (mostly in C, Rust in the distant future)

Andrew Brown (Jan 25 2023 at 00:09):

@Frank Denis was asking if we could add those notes to the wasi-crypo repository's meeting minutes?

Frank Denis (Feb 21 2023 at 15:55):

Do we have a meeting today?

Frank Denis (Feb 21 2023 at 16:02):

Maybe people are trying to join, but I'm not the meeting organizer, I think Nathaniel was. But when he's not around, nobody can join.

Frank Denis (Feb 21 2023 at 16:03):

Regarding the last meeting.

Frank Denis (Feb 21 2023 at 16:04):

1) Sure, having benchmarks would be useful, especially to measure the overhead of wasm+wasi over native implementations, or compare wasmedge vs wasmtime and identify bottlenecks.

Frank Denis (Feb 21 2023 at 16:10):

2) AES-GCM would indeed benefit from this, so the key schedule doesn't have to be recomputed every time. But for all other AEADs, this is not the case; the key and the IV are mixed into the initial state at the same time. symmetric_state_options_set(state_handle, "nonce", new_nonce) could be used to reset the state with a new nonce. The downside is that for all ciphers, we'll have to keep a copy of the secret key until the state is destroyed, just in case, even with ciphers having the nice property of not allowing key recovery on state leakage.

Frank Denis (Feb 21 2023 at 16:12):

Or maybe introduce a symmetric_state_reset() call that takes the key handle in addition to the IV.

Frank Denis (Feb 21 2023 at 16:13):

That sounds like a better approach; the key can still be destroyed if the app doesn't intend to reuse it immediately.

Frank Denis (Feb 21 2023 at 16:14):

For AES-GCM, implementations would still need to keep a reference to the handle, in order to check that it's the same key as in symmetric_state_open().

Frank Denis (Feb 21 2023 at 16:15):

it adds some implementation complexity, but it should be fine.

Frank Denis (Feb 21 2023 at 16:16):

3) This is awesome. Maybe work with the wasmedge folks since their implementation is in C++?

Frank Denis (Mar 21 2023 at 16:04):

wasi-crypto meeting now, feel free to join if you're around!

Andrew Brown (Mar 23 2023 at 13:16):

@Frank Denis, I missed this but wanted to attend! My fault: when I saw https://github.com/WebAssembly/wasi-crypto/issues/73 I fumbled around with the links and couldn't figure out how to import it into my calendar but that should be fixed now. I see a meeting on April 4th that I will try to attend. There are a couple others from Intel that may be interested as well.

Frank Denis (Mar 23 2023 at 13:22):

No biggie. I'm gonna post the minutes for that meeting.

Last updated: Nov 22 2024 at 17:03 UTC