SipHash extension for PHP.
SipHash is a family of pseudorandom functions optimized for short inputs. Target applications include network traffic authentication and hash-table lookups protected against hash-flooding denial-of-service attacks. SipHash has well-defined security goals and competitive performance.
Usage:
sip_hash(key, message)
outputs siphash-2-4(key, message) as a 8-byte string.
sip_hash32(key, message)
truncates the value and outputs a 32-bit integer.
The key should be a 16 bytes string.
$ phpize
$ ./configure --enable-siphash
$ make install
And add extension=siphash.so to your php.ini configuration file.
This PHP extension uses FloodyBerry's basic implementation