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| author | Salman Qazi <sqazi@google.com> | 2012-10-05 14:24:14 -0700 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2012-10-15 22:33:20 +0800 |
| commit | ba1ee070909fae01248b8117da1706f3cf2bfd1b (patch) | |
| tree | 98d982702fdc17a9699387c59583e9a5ecf0b984 /include/crypto | |
| parent | 7291a932c6e27d9768e374e9d648086636daf61c (diff) | |
| download | lwn-ba1ee070909fae01248b8117da1706f3cf2bfd1b.tar.gz lwn-ba1ee070909fae01248b8117da1706f3cf2bfd1b.zip | |
crypto: vmac - Make VMAC work when blocks aren't aligned
VMAC implementation, as it is, does not work with blocks that
are not multiples of 128-bytes. Furthermore, this is a problem
when using the implementation on scatterlists, even
when the complete plain text is 128-byte multiple, as the pieces
that get passed to vmac_update can be pretty much any size.
I also added test cases for unaligned blocks.
Signed-off-by: Salman Qazi <sqazi@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'include/crypto')
| -rw-r--r-- | include/crypto/vmac.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/crypto/vmac.h b/include/crypto/vmac.h index c4467c55df1e..6b700c7b2fe1 100644 --- a/include/crypto/vmac.h +++ b/include/crypto/vmac.h @@ -56,6 +56,8 @@ typedef u64 vmac_t; struct vmac_ctx_t { struct crypto_cipher *child; struct vmac_ctx __vmac_ctx; + u8 partial[VMAC_NHBYTES]; /* partial block */ + int partial_size; /* size of the partial block */ }; #endif /* __CRYPTO_VMAC_H */ |