Bidirectional Hash table or Two way dictionary in Python

We know about Python dictionaries in a data structure in Python which holds data in the form of key: value pairs. In this article, we will discuss the Bidirectional Hash table or Two-way dictionary in Python. We can say a two-way dictionary can be represented as key ⇐⇒ value. One example of two-way dictionaries is: Example: A bidirectional dictionary can be represented as key ⇐⇒ value. I.e. it can return value based on the key and also the corresponding key on the basis of the value. In the above example, a regular dictionary can be loo ...

c++ - Two-way "Hashing" of string

I want to generate int from a string and be able to generate it back. Something like hash function but two-way function. I want to use ints as ID in my application, but want to be able to convert i...

hash - Is there a two-way hashing algorithm in PHP?

Disclaimer: I understand that a hash is not supposed to be reversible. I've seen many people ask if there is a way to "unhash" text that is already hashed. However, I am not seeing a straight an...

One-Way Hash Function: Dynamic Algorithms | Okta

A one-way hash function uses an input to generate an output key with no way to decipher what the original input was. Discover one-way encryption with Okta.

Two way hashing (JS) · GitHub

Two way hashing (JS). GitHub Gist: instantly share code, notes, and snippets.

cryptography - Why is XOR the default way to combine hashes?

Say you have two hashes H(A) and H(B) and you want to combine them. I've read that a good way to combine two hashes is to XOR them, e.g. XOR( H(A), H(B) ). The best explanation I've found is touched

Hash function

A good hash function satisfies two basic properties: it should be very fast to compute, and it should minimize duplication of output values (collisions). Hash functions rely on generating...

How to compare hash values in python

I want to know how to compare two hash values not Hamming distance. Is there a way? The final goal is to determine key of python dictionary that similar images can have in common. for example. imp...

hash - Can you find out how big the changes are by comparing two hashes?

I realize that a hash function is a one way function, and that changes in the hash are suppose to tell us that the original data has changed (that the entire hash changes on even the slightest chan...

Universal one-way hash function

Find sources: "Universal one-way hash function" – news · newspapers · books · scholar... Let be an algorithm that operates in two phases: Initially, receives no input (or just a...