Right now there are thousands of computers connected to the Internet, dutifully calculating SHA-256 hashes and sending their results to other peers on the Bitcoin network. There’s a tremendous amount ...

The latest version of Linus Torvalds' Git version-control system brings experimental support for the SHA-256 cryptographic hash, moving it away from its reliance on the less safe SHA-1. Google and ...

Understanding Bitcoin is a one-way hash function should make sense because a hash function cannot be reversed. Once you understand that, it is hard to go back to thinking otherwise. The secure hash ...

Ever wonder how long it would take to mine a block into the Bitcoin blockchain by hand? Well, wonder no longer because blogger Ken Shirriff has done the work for you with a pencil and paper. In an ...

Imagine taking a block of data and turning it into a unique string of characters. Like giving it a digital nickname that never changes (unless the data does!). That’s a hash. Whether the original data ...

Things are about to get a lot safer on the internet with SHA-2, but there is plenty of work still to be done when it comes to SHA-1 deprecation. For the past couple of years, browser makers have raced ...

The PKI industry recommends that every SHA-1 enabled PKI move to the vastly more secure SHA-2. Here's why and how. For the past two years, I’ve been busy helping Public Key Infrastructure (PKI) ...