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authorEric Biggers2017-11-22 20:51:39 +0100
committerHerbert Xu2017-11-29 07:33:33 +0100
commit9f480faec58cd6197a007ea1dcac6b7c3daf1139 (patch)
treebd5107e627a9013bbbfc290ceccea218d9393f66 /crypto/sha256_generic.c
parentcrypto: x86/chacha20 - Remove cra_alignmask (diff)
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crypto: chacha20 - Fix keystream alignment for chacha20_block()
When chacha20_block() outputs the keystream block, it uses 'u32' stores directly. However, the callers (crypto/chacha20_generic.c and drivers/char/random.c) declare the keystream buffer as a 'u8' array, which is not guaranteed to have the needed alignment. Fix it by having both callers declare the keystream as a 'u32' array. For now this is preferable to switching over to the unaligned access macros because chacha20_block() is only being used in cases where we can easily control the alignment (stack buffers). Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/sha256_generic.c')
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