The implementation bundles the xxHash v0.8.0 release and includes all the variants
- xxh32, 32-bit wide
- xxh64, 64-bit wide
- xxh3, 64-bit wide
- xxh128, 128-bit wide
An initial hash state can be passed through the options arrray. An additional
functionality not targeted in this implementation is the secret support in xxh3
and xxh128. That can be added at a later point.
The serialization for xxh3 and xxh128 should not be implemented, as the
state would contain the secret. Despite the xxHash is a non crypto
algorithm, the secret would be serialized as plain text which would be
insecure.
Closes GH-6524
Signed-off-by: Anatol Belski <ab@php.net>
The implementation is based on the upstream PMurHash. The following
variants are implemented
- murmur3a, 32-bit hash
- murmur3c, 128-bit hash for x86
- murmur3f, 128-bit hash for x64
The custom seed support is not targeted by this implementation. It will
need a major change to the API, so then custom arguments can be passed
through `hash_init`. For now, the starting hash is always zero.
Fixes bug #68109, closes#6059
Signed-off-by: Anatol Belski <ab@php.net>
Co-Developed-by: Michael Wallner <mike@php.net>
Signed-off-by: Michael Wallner <mike@php.net>
The $Id$ keywords were used in Subversion where they can be substituted
with filename, last revision number change, last changed date, and last
user who changed it.
In Git this functionality is different and can be done with Git attribute
ident. These need to be defined manually for each file in the
.gitattributes file and are afterwards replaced with 40-character
hexadecimal blob object name which is based only on the particular file
contents.
This patch simplifies handling of $Id$ keywords by removing them since
they are not used anymore.
Fix hash_copy() tests by using correct size for sha3 context
sync config.w32 with with new sha3 files
Move dependency on KeccakHash.h to hash_sha3.c so we do not rely on it to install php_hash_sha3.h
Allocate memory for KeccacInstance in hash_sha3.c so header files do not need to know about implementation details while keeping API backward compatible to original sha3 implementation
Fix memory leak because hash_copy is called after init which already allocates the hashinstance
