hash Archives - Page 3 of 4

Is “double hashing” a password less secure than just hashing it once?

Is hashing a password twice before storage any more or less secure than just hashing it once? What I’m talking about is doing ...

May 15, 2022
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Best implementation for hashCode method for a collection

How do we decide on the best implementation of hashCode() method for a collection (assuming that equals method has been overridden correctly) ? ...

May 15, 2022
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How to sum all the values in a dictionary?

Let’s say I have a dictionary in which the keys map to integers like: d = {'key1': 1,'key2': 14,'key3': 47} Is there a ...

May 15, 2022
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What column type/length should I use for storing a Bcrypt hashed password in a Database?

I want to store a hashed password (using BCrypt) in a database. What would be a good type for this, and which would ...

May 11, 2022
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C++ unordered_map using a custom class type as the key

I am trying to use a custom class as key for an unordered_map, like the following: #include <iostream> #include <algorithm> #include <unordered_map> using ...

May 11, 2022
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Calculate MD5 checksum for a file

I’m using iTextSharp to read the text from a PDF file. However, there are times I cannot extract text, because the PDF file ...

May 9, 2022
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Why should hash functions use a prime number modulus?

A long time ago, I bought a data structures book off the bargain table for $1.25. In it, the explanation for a hashing ...

May 9, 2022
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node.js hash string?

I have a string that I want to hash. What’s the easiest way to generate the hash in node.js? The hash is for ...

May 6, 2022
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How does a hash table work?

I’m looking for an explanation of how a hash table works – in plain English for a simpleton like me! For example, I ...

May 2, 2022
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