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| author |   Eric Biggers <ebiggers@google.com> | 2020-05-02 11:24:25 -0700 |
|---|---|---|
| committer |   Herbert Xu <herbert@gondor.apana.org.au> | 2020-05-08 15:32:17 +1000 |
| commit | 6b0b0fa2bce61db790efc8070ae6e5696435b0a8 (patch) | |
| tree | e849f9c027696010b95ebec127d4b4b86196f8f8 /Documentation/security | |
| parent | crypto: s390/sha1 - prefix the "sha1_" functions (diff) | |
| download | wireguard-linux-6b0b0fa2bce61db790efc8070ae6e5696435b0a8.tar.xz wireguard-linux-6b0b0fa2bce61db790efc8070ae6e5696435b0a8.zip | |
crypto: lib/sha1 - rename "sha" to "sha1"
The library implementation of the SHA-1 compression function is
confusingly called just "sha_transform()". Alongside it are some "SHA_"
constants and "sha_init()". Presumably these are left over from a time
when SHA just meant SHA-1. But now there are also SHA-2 and SHA-3, and
moreover SHA-1 is now considered insecure and thus shouldn't be used.
Therefore, rename these functions and constants to make it very clear
that they are for SHA-1. Also add a comment to make it clear that these
shouldn't be used.
For the extra-misleadingly named "SHA_MESSAGE_BYTES", rename it to
SHA1_BLOCK_SIZE and define it to just '64' rather than '(512/8)' so that
it matches the same definition in <crypto/sha.h>. This prepares for
merging <linux/cryptohash.h> into <crypto/sha.h>.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'Documentation/security')
| -rw-r--r-- | Documentation/security/siphash.rst | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/security/siphash.rst b/Documentation/security/siphash.rst index 4eba68cdf0a1..bd9363025fcb 100644 --- a/Documentation/security/siphash.rst +++ b/Documentation/security/siphash.rst @@ -7,7 +7,7 @@ SipHash - a short input PRF SipHash is a cryptographically secure PRF -- a keyed hash function -- that performs very well for short inputs, hence the name. It was designed by cryptographers Daniel J. Bernstein and Jean-Philippe Aumasson. It is intended -as a replacement for some uses of: `jhash`, `md5_transform`, `sha_transform`, +as a replacement for some uses of: `jhash`, `md5_transform`, `sha1_transform`, and so forth. SipHash takes a secret key filled with randomly generated numbers and either |