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crypto: x86/chacha20 - add XChaCha20 support
authorEric Biggers <ebiggers@google.com>
Wed, 5 Dec 2018 06:20:02 +0000 (22:20 -0800)
committerHerbert Xu <herbert@gondor.apana.org.au>
Thu, 13 Dec 2018 10:24:57 +0000 (18:24 +0800)
commit4af78261870a7d36dd222af8dad9688b705e365e
tree6013fcbd4c774b15033d09b67dfa7320ec22bc3atree | snapshot
parent0f961f9f670e7c07690bfde2f533b93c653569cccommit | diff
crypto: x86/chacha20 - add XChaCha20 support

Add an XChaCha20 implementation that is hooked up to the x86_64 SIMD
implementations of ChaCha20.  This can be used by Adiantum.

An SSSE3 implementation of single-block HChaCha20 is also added so that
XChaCha20 can use it rather than the generic implementation.  This
required refactoring the ChaCha permutation into its own function.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
arch/x86/crypto/chacha20-ssse3-x86_64.S diff | blob | history
arch/x86/crypto/chacha20_glue.c diff | blob | history
crypto/Kconfig diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git