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| author | allanjude <allanjude@FreeBSD.org> | 2016-05-28 16:06:07 +0000 |
|---|---|---|
| committer | allanjude <allanjude@FreeBSD.org> | 2016-05-28 16:06:07 +0000 |
| commit | 4581e38971cdd62b178bbed2066ac8c3b0ec5499 (patch) | |
| tree | fb7b8495c2429cb7c5e5287882efd1fd12bb6120 /lib/libcrypt | |
| parent | 15f895037c82da771c558cbbda75c3ae7f309e15 (diff) | |
| download | FreeBSD-src-4581e38971cdd62b178bbed2066ac8c3b0ec5499.zip FreeBSD-src-4581e38971cdd62b178bbed2066ac8c3b0ec5499.tar.gz | |
Implement SHA-512 truncated (224 and 256 bits)
This implements SHA-512/256, which generates a 256 bit hash by
calculating the SHA-512 then truncating the result. A different initial
value is used, making the result different from the first 256 bits of
the SHA-512 of the same input. SHA-512 is ~50% faster than SHA-256 on
64bit platforms, so the result is a faster 256 bit hash.
The main goal of this implementation is to enable support for this
faster hashing algorithm in ZFS. The feature was introduced into ZFS
in r289422, but is disconnected because SHA-512/256 support was missing.
A further commit will enable it in ZFS.
This is the follow on to r292782
Reviewed by: cem
Sponsored by: ScaleEngine Inc.
Differential Revision: https://reviews.freebsd.org/D6061
Diffstat (limited to 'lib/libcrypt')
| -rw-r--r-- | lib/libcrypt/Makefile | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/libcrypt/Makefile b/lib/libcrypt/Makefile index c1f8542..3b982a3 100644 --- a/lib/libcrypt/Makefile +++ b/lib/libcrypt/Makefile @@ -31,6 +31,8 @@ CFLAGS+= -I${.CURDIR} -DHAS_DES -DHAS_BLOWFISH .for sym in MD4Init MD4Final MD4Update MD4Pad \ MD5Init MD5Final MD5Update MD5Pad \ SHA256_Init SHA256_Final SHA256_Update \ + SHA512_224_Init SHA512_224_Final SHA512_224_Update \ + SHA512_256_Init SHA512_256_Final SHA512_256_Update \ SHA384_Init SHA384_Final SHA384_Update \ SHA512_Init SHA512_Final SHA512_Update CFLAGS+= -D${sym}=__${sym} |
