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proposal: x/crypto/blake2b: add BLAKE2X (BLAKE2Xs and BLAKE2Xb) #19513

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aead opened this issue Mar 11, 2017 · 2 comments
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proposal: x/crypto/blake2b: add BLAKE2X (BLAKE2Xs and BLAKE2Xb) #19513

aead opened this issue Mar 11, 2017 · 2 comments
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@aead
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aead commented Mar 11, 2017

BLAKE2X is a construction based on BLAKE2 to produce arbitrary hash values (up to 2^16 -1 bytes for BLAKE2s and 2^32 -1 bytes for BLAKE2b) similar to the ShakeHash interface of the SHA-3 package.
Such long hash values can be used within signature schemes - for example, Ed521 signatures need a 1056-bit hash.
For a detailed description of BLAKE2X see this paper.
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CL https://golang.org/cl/38055 mentions this issue.

@rsc rsc changed the title Proposal: Implement BLAKE2X (BLAKE2Xs and BLAKE2Xb) proposal: x/crypto/blake2b: add BLAKE2X (BLAKE2Xs and BLAKE2Xb) Mar 13, 2017
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rsc commented Mar 13, 2017

/cc @agl

@rsc rsc added this to the Proposal milestone Mar 13, 2017
@rsc rsc added the Proposal label Mar 13, 2017
@lukechampine lukechampine mentioned this issue Mar 23, 2017
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@aead aead mentioned this issue Mar 25, 2017
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@golang golang locked and limited conversation to collaborators Jul 9, 2018
c-expert-zigbee pushed a commit to c-expert-zigbee/crypto_go that referenced this issue Mar 28, 2022
@agl
blake2b: implement BLAKE2X
2e17062 
This CL implements the BLAKE2X, a extensible-output function (XOF), on
top of BLAKE2b. BLAKE2X is described in https://blake2.net/blake2x.pdf

Fixes golang/go#19513

Change-Id: Ibf33c764c9902e90fd9c8e375583ed153f4de1c7
Reviewed-on: https://go-review.googlesource.com/38055
Reviewed-by: Andreas Auernhammer <aead@mail.de>
Reviewed-by: Adam Langley <agl@golang.org>
c-expert-zigbee pushed a commit to c-expert-zigbee/crypto_go that referenced this issue Mar 29, 2022
@c-expert-zigbee
blake2b: implement BLAKE2X
c77dac5 
This CL implements the BLAKE2X, a extensible-output function (XOF), on
top of BLAKE2b. BLAKE2X is described in https://blake2.net/blake2x.pdf

Fixes golang/go#19513

Change-Id: Ibf33c764c9902e90fd9c8e375583ed153f4de1c7
Reviewed-on: https://go-review.googlesource.com/38055
Reviewed-by: Andreas Auernhammer <aead@mail.de>
Reviewed-by: Adam Langley <agl@golang.org>
LewiGoddard pushed a commit to LewiGoddard/crypto that referenced this issue Feb 16, 2023
@agl
blake2b: implement BLAKE2X
0f0c784 
This CL implements the BLAKE2X, a extensible-output function (XOF), on
top of BLAKE2b. BLAKE2X is described in https://blake2.net/blake2x.pdf

Fixes golang/go#19513

Change-Id: Ibf33c764c9902e90fd9c8e375583ed153f4de1c7
Reviewed-on: https://go-review.googlesource.com/38055
Reviewed-by: Andreas Auernhammer <aead@mail.de>
Reviewed-by: Adam Langley <agl@golang.org>
BiiChris pushed a commit to BiiChris/crypto that referenced this issue Sep 15, 2023
@agl
blake2b: implement BLAKE2X
1136f60 
This CL implements the BLAKE2X, a extensible-output function (XOF), on
top of BLAKE2b. BLAKE2X is described in https://blake2.net/blake2x.pdf

Fixes golang/go#19513

Change-Id: Ibf33c764c9902e90fd9c8e375583ed153f4de1c7
Reviewed-on: https://go-review.googlesource.com/38055
Reviewed-by: Andreas Auernhammer <aead@mail.de>
Reviewed-by: Adam Langley <agl@golang.org>
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