A cryptographic hash function is one of the quiet workhorses of modern computing. It takes data of any size and turns it into a short, fixed-length fingerprint, and it does so in a way that is easy to ...

What are the differences between Message Authentication Codes (MAC) and Keyed-Hashing for Message Authentication (HMAC)? Could you provide an example of an instance where one is a better option than ...

Add Shattered once in the Google app and our stories show up in your news suggestions. SHA-256 stands for Secure Hash Algorithm 256-bit. It belongs to the SHA-2 family, a set of hash functions ...

Hashing is a one-way cryptographic function while encryption is designed to work both ways. Encryption algorithms take input and a secret key and generate a random looking output called a ciphertext.

When news of a data breach breaks, we increasingly see statements from companies claiming, 'Because passwords were saved in a ...

Dave McKay first used computers when punched paper tape was in vogue, and he has been programming ever since. After over 30 years in the IT industry, he became a full-time technology journalist. His ...

In blockchain, hashes are everywhere: transaction IDs are hashes, hashes link blocks together, and Bitcoin mining involves calculating hashes over and over. What exactly is a hash, and why is it so im ...

LAS VEGAS—Elie Bursztein, Google's lead anti-fraud researcher, began his talk here at Black Hat 2017 with an understatement: "It has been a long and interesting journey over the last few years." In ...