sha3: add cSHAKE support

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This patch implements 128- and 256-bit version of customizable variant
of SHAKE function (cSHAKE).

* Implementation based on NIST FIPS 202
* Test data file has been updated with cSHAKE KATs. I've copied
  examples from NIST document available here:
  https://csrc.nist.gov/csrc/media/projects/cryptographic-standards-and
  -guidelines/documents/examples/cshake_samples.pdf

Fixes #25395

Change-Id: Icbbc4232f3d9a28b3d6ead51937c2e60c00e5d8c
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/111281
Reviewed-by: Filippo Valsorda <filippo@golang.org>

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This commit is contained in:

Kris Kwiatkowski

2019-04-17 17:40:47 +00:00

committed by Filippo Valsorda

parent 92d88b081a

commit f416ebab96

3 changed files with 270 additions and 30 deletions

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sha3/testdata/keccakKats.json.deflate

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