[CFRG] Re: BLAKE3 I-D

[Christopher Patton <[e-mail]>]

Hi JP,  it may be reasonable to have an update to the existing BLAKE2 RFC.
How does BLAKE3 compare to TurboSHAKE/KangarooTwelve? Its RFC is nearly
finished (https://datatracker.ietf.org/doc/draft-irtf-cfrg-kangarootwelve/)
and we already have applications for it. Are there use cases for which you
think BLAKE3 is better suited?

Chris P.

On Fri, Jul 26, 2024 at 6:46 AM Jean-Philippe Aumasson <
[e-mail]> wrote:

> Dear CFRG members,
>
> We created an I-D for BLAKE3, a popular hash function that can be also
> used as PRF, MAC, KDF, XOF::
>
> https://datatracker.ietf.org/doc/draft-aumasson-blake3/
>
> We would like to eventually turn it into an RFC, to formally standardize
> BLAKE3 and make it eligible for integration in systems and organizations
> that require this (like OpenSSL).
>
> See also https://github.com/BLAKE3-team/BLAKE3/blob/master/README.md.
>
> BLAKE3 is often used via the b3sum utility, for example from
> https://crates.io/crates/b3sum
> https://formulae.brew.sh/formula/b3sum
>
> In the I-D we tried to describe BLAKE3's tree mode in the simplest way
> possible, yet in a way sufficient to implement. The I-D does not include
> source code, however, but instead refers to our C or Rust reference code at
> https://github.com/BLAKE3-team/BLAKE3.
>
> We would appreciate any informal feedback at this stage, and then we would
> like to proceed with the formal review process as soon as possible. We will
> follow the recommendations and instructions of the CFRG chairs, as we are
> not familiar with the process.
>
> Thank you for your attention to this new I-D submission.
>
> JP, on behalf of the BLAKE3 team (Jack, Samuel, Zooko)
>
>
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