Zack Puhl bae0f0f579 Implement ChaCha20 Crypto in stdlib (#2643) ...

* ChaCha20 implementation, first pass

* fix bug with clone_slice when length is 0

* final ChaCha20 crypto tidying

* final adjustments; add benchmark

* add guards everywhere else or w/e

* stdlib 'i++' conformity

* release notes & security warning updates

* update tests; cleanup; default counter should be 0 not 1

* remove prints in test file

* add extra unit tests for unaligned buffers

Co-authored-by: Manu Linares <mbarriolinares@gmail.com>

* one final alignment test

* nice contraction of tests w/ some paranoia sprinkled in

* nearly double the efficiency of chacha20's transform

Co-authored-by: Manu Linares <mbarriolinares@gmail.com>

* fix memory leak in test case

* improve one of the unit tests to cover more cases

* greatly simplify chacha20 'transform'

Co-authored-by: Manu Linares <mbarriolinares@gmail.com>

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Co-authored-by: Manu Linares <mbarriolinares@gmail.com>

2025-12-17 15:10:45 +01:00

..

stdlib

Implement ChaCha20 Crypto in stdlib (#2643)

2025-12-17 15:10:45 +01:00