crypto: x86/chacha20 - Support partial lengths in 4-block SSSE3 variant

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Add a length argument to the quad block function for SSSE3, so the
block function may XOR only a partial length of four blocks.

As we already have the stack set up, the partial XORing does not need
to. This gives a slightly different function trailer, so we keep that
separate from the 1-block function.

Signed-off-by: Martin Willi <martin@strongswan.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

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Martin Willi 2018-11-11 10:36:26 +01:00 • committed by Herbert Xu

parent e4e72063d3

commit db8e15a249

2 changed files with 128 additions and 40 deletions

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169

arch/x86/crypto/chacha20-ssse3-x86_64.S

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5

arch/x86/crypto/chacha20_glue.c

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