crypto: arm64/aes-blk - honour iv_out requirement in CBC and CTR modes

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commit 11e3b725cf upstream.

Update the ARMv8 Crypto Extensions and the plain NEON AES implementations
in CBC and CTR modes to return the next IV back to the skcipher API client.
This is necessary for chaining to work correctly.

Note that for CTR, this is only done if the request is a round multiple of
the block size, since otherwise, chaining is impossible anyway.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

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Ard Biesheuvel 2017-01-17 13:46:29 +00:00 • committed by Ben Hutchings

parent 3ae51b03e5

commit a2fcebf03d

1 changed files with 42 additions and 46 deletions

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arch/arm64/crypto/aes-modes.S

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