zuse: add blake3 #6802
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zuse: add blake3 #6802
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lukechampine
commented
Sep 22, 2023
lukechampine
commented
Sep 22, 2023
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You can achieve your desired cuteness. Write a barcen core with a +blake3 arm that returns a gate, then tisgal the blake3 arm. +blake3 then refers to a gate whose context is the barcen core contains the other arms, accessible as +compress:blake3.
```hoon
=< blake3
|%
++ blake3
|=(* !!)
++ compress
|=(* !!)
--
```
…On Thu, Sep 28 2023 at 11:05 AM, Luke Champine < ***@***.*** > wrote:
***@***.**** commented on this pull request.
In pkg/arvo/sys/zuse.hoon (
#6802 (comment) ) :
> + ++ parent-output
+ |= [l=output r=output]
+ ^-
output
+ %+ set-flag f-parent
+ [cv (rep 8 ~[(compress l)
(compress r)]) 0 64 flags]
+ ::
+ ++ chunk-output
+ |=
[counter=@ chunk=byts]
+ ^- output
+ %+ set-flag
f-chunkend
+ %+ roll (split-byts 9 chunk)
+ |= [[i=@
byts] prev=output]
+ ?: =(0 i) [cv dat counter wid (con flags
f-chunkstart)]
+ [(rep 8 ~[(compress prev)]) dat counter wid flags]
+ ::
+ ++ compress
cool. ^? breaks the door, so I had to change the keyed API, but it seems to
work now.
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Ah, email comments can't do markdown. Here's better formatting: |% :: zuse or lull
:: ...
++ blake3
=< run
|%
++ run
|=(* !!)
++ compress
|=(* !!)
--
:: ...
-- |
lukechampine
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lukechampine
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Oct 10, 2023
joemfb
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Nov 21, 2023
joemfb
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Dec 7, 2023
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Instead of directly targeting |
lukechampine
commented
Dec 11, 2023
joemfb
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Jan 25, 2024
See urbit/urbit#6802 and urbit/urcrypt#8 Depends on #524
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BLAKE3 is the faster, cleaner, more powerful successor to BLAKE2. In particular, it is a tree hash -- the digest is a Merkle root -- which means it can be used for verified streaming.