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author | David Sterba <dsterba@suse.com> | 2019-10-24 18:28:31 +0200 |
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committer | Herbert Xu <herbert@gondor.apana.org.au> | 2019-11-01 13:38:31 +0800 |
commit | 3c197bb20a977bce48dbec3d4a18f8bc702a7360 (patch) | |
tree | c48c8921203ae9c78e7cd799761a0fcb89b07080 /crypto/pcrypt.c | |
parent | 262777c0da63572461859a155024cf5c52023afb (diff) | |
download | linux-crypto-3c197bb20a977bce48dbec3d4a18f8bc702a7360.tar.gz linux-crypto-3c197bb20a977bce48dbec3d4a18f8bc702a7360.zip |
crypto: blake2b - add blake2b generic implementation
The patch brings support of several BLAKE2 variants (2b with various
digest lengths). The keyed digest is supported, using tfm->setkey call.
The in-tree user will be btrfs (for checksumming), we're going to use
the BLAKE2b-256 variant.
The code is reference implementation taken from the official sources and
modified in terms of kernel coding style (whitespace, comments, uintXX_t
-> uXX types, removed unused prototypes and #ifdefs, removed testing
code, changed secure_zero_memory -> memzero_explicit, used own helpers
for unaligned reads/writes and rotations).
Further changes removed sanity checks of key length or output size,
these values are verified in the crypto API callbacks or hardcoded in
shash_alg and not exposed to users.
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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