ChargeHash is the hyper-efficient Murmur3 that has endian-independent memory reading, excellent non-cryptographic output quality, excellent non-cryptographic security properties (light resistance against HashDoS and length-extension attacks), hyper-fast speed and low-footprint implementation.
ChargeHash was created by William Stafford Parsons as a product of Eightomic.
ChargeHash uses a proprietary license.
ChargeHash is implemented in C (requiring the stdint.h header to define an 8-bit, unsigned integral type for uint8_t and a 32-bit, unsigned integral type for uint32_t).
The chargehash1x32 function uses a uint32_t seed integer to hash a key array of key_length uint8_t integers and return a uint32_t digest.
Each of the following results log the fastest process execution speed (in cycles per operation) among several repetitions of the Init std::unordered_map speed benchmark from SMHasher3 Hashmap speed tests (using default cmake compiler settings from an AMD A4-9120C).
| Hash Function | Cycles | SMHasher3 --extra Failures |
|---|---|---|
chargehash1x32 |
957.242 | 0 |
murmur3a |
1010.093 | 82 |