The non-cryptographic hash functions (NCHFs[1]) are hash functions intended for applications that do not need the rigorous security requirements of the cryptographic hash functions (e.g., preimage resistance) and therefore can be faster and less resource-intensive.[2] Typical examples of CPU-optimized non-cryptographic hashes include FNV-1a and Murmur3.[3] Some non-cryptographic hash functions are used in cryptographic applications (usually in combination with other cryptographic primitives); in this case they are described as universal hash functions.[4]