hashcode algorithms

 https://en.wikipedia.org/wiki/BLAKE_(hash_function)

 https://en.wikipedia.org/wiki/Secure_Hash_Algorithms

 https://en.wikipedia.org/wiki/SHA-1

https://en.wikipedia.org/wiki/SHA-3

https://en.wikipedia.org/wiki/MD4 

https://en.wikipedia.org/wiki/List_of_hash_functions

https://en.wikipedia.org/wiki/MurmurHash

https://en.wikipedia.org/wiki/Distributed_hash_table

hashcode algorithms hash table lookup

https://www.tutorialspoint.com/data_structures_algorithms/hash_data_structure.htm