In this episode of “Bitcoin, Explained,” hosts Aaron van Wirdum and Sjors Provoost go back to Bitcoin basics. They explain one of the most fundamental building blocks in all of Bitcoin: hash functions ...

Anyone with an interest in bitcoin will have heard the phrase 'cryptographic hash function' at some time or other. But what exactly does it mean, and how is it connected to cryptocurrency? Hash ...

Europol says crypto will not collapse under quantum computing, but wallets whose public keys are already on-chain must move ...

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 ...

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 ...

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What is a kernel developer to do when they need a simple hashing function to use in a new hash table, and they find that the obvious choice provided by the kernel works poorly? The "right" option is ...

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 ...