Do you think more bits for the hash value makes the algorithm better?

Do you think more bits for the hash value makes the algorithm better?

A larger bit hash can provide more security because there are more possible combinations. Remember that one of the important functions of a cryptographic hashing algorithm is that is produces unique hashes. Again, if two different values or files can produce the same hash, you create what we call a collision.

What is salting a hash?

Auth0 Docs Salting hashes sounds like one of the steps of a hash browns recipe, but in cryptography, the expression refers to adding random data to the input of a hash function to guarantee a unique output, the hash, even when the inputs are the same.

What is secure hash algorithm used for?

Secure Hash Algorithms, also known as SHA, are a family of cryptographic functions designed to keep data secured. It works by transforming the data using a hash function: an algorithm that consists of bitwise operations, modular additions, and compression functions.

Which hashing algorithm is safe?

The most secure hashing algorithm is one of the newer revisions to SHA(secure hasing algorithm.) SHA-1 is no longer considered secure by NIST and the NSA. The new standard is SHA-2, which is made up of: SHA 224.

Are there any hashes that are more secure?

You’ve got no idea if these hashes are more secure. Leave it to the experts who know what they’re doing. These add no extra security. Granted they don’t improve the function as a hash (i.e. make it harder to reverse or find collisions etc.), but surely surely they don’t make it worse as a hash?

How is the hash code used in rehashing?

The hash code is used to find an index (hashCode % arrSize) and the entire linked list at that index (Separate chaining) is first searched for the presence of the K already. If found, it’s value is updated and if not, the K-V pair is stored as a new node in the list. For the first step, time taken depends on the K and the hash function.

What should the load factor be for rehash?

For each addition of a new entry to the map, check the load factor. If it’s greater than its pre-defined value (or default value of 0.75 if not given), then Rehash. For Rehash, make a new array of double the previous size and make it the new bucketarray.

Are there any advantages to using a wacky hash?

Here are two possible (and worthwhile, as far as I can see) advantages to using a “wacky” hash over a normal hash: