crypto: shash - require neither or both ->export() and ->import()

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Prevent registering shash algorithms that implement ->export() but not
->import(), or ->import() but not ->export().  Such cases don't make
sense and could confuse the check that shash_prepare_alg() does for just
->export().

I don't believe this affects any existing algorithms; this is just
preventing future mistakes.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

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Eric Biggers 2019-01-06 19:07:20 -08:00 • committed by Herbert Xu

parent 6ebc97006b

commit 41a2e94f81

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crypto/shash.c

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