tree e2e6178fac1d9b3ac2b557cac76977e15f7d5d2c
parent caee16883a235b1b042282276859e7d5901fad21
author Herbert Xu <herbert@gondor.apana.org.au> 1215433436 +0800
committer Herbert Xu <herbert@gondor.apana.org.au> 1215693317 +0800

crypto: hash - Fixed digest size check

The digest size check on hash algorithms is incorrect.  It's
perfectly valid for hash algorithms to have a digest length
longer than their block size.  For example crc32c has a block
size of 1 and a digest size of 4.  Rather than having it lie
about its block size, this patch fixes the checks to do what
they really should which is to bound the digest size so that
code placing the digest on the stack continue to work.

HMAC however still needs to check this as it's only defined
for such algorithms.

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