diff options
| author | David Sterba | 2019-10-24 18:28:31 +0200 |
|---|---|---|
| committer | Herbert Xu | 2019-11-01 13:38:31 +0800 |
| commit | 91d689337fe8b7703608a2ec39aae700b99f3933 (patch) | |
| tree | b52ea258572bf402041187bd487855e2e81da12f /crypto/Kconfig | |
| parent | 17513547a87a82b4086e802ac93b5c4e5f644ff1 (diff) | |
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>
Diffstat (limited to 'crypto/Kconfig')
| -rw-r--r-- | crypto/Kconfig | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/crypto/Kconfig b/crypto/Kconfig index 320548b4dfa9..083e9ffc17b0 100644 --- a/crypto/Kconfig +++ b/crypto/Kconfig @@ -639,6 +639,23 @@ config CRYPTO_XXHASH xxHash non-cryptographic hash algorithm. Extremely fast, working at speeds close to RAM limits. +config CRYPTO_BLAKE2B + tristate "BLAKE2b digest algorithm" + select CRYPTO_HASH + help + Implementation of cryptographic hash function BLAKE2b (or just BLAKE2), + optimized for 64bit platforms and can produce digests of any size + between 1 to 64. The keyed hash is also implemented. + + This module provides the following algorithms: + + - blake2b-160 + - blake2b-256 + - blake2b-384 + - blake2b-512 + + See https://blake2.net for further information. + config CRYPTO_CRCT10DIF tristate "CRCT10DIF algorithm" select CRYPTO_HASH |