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 ...

Hash functions are a one-way mathematical problem. If a person has the resulting hash, it is impossible to convert it back to the original data. In this episode of “Bitcoin, Explained,” hosts ...

A hash is a mathematical function that maps data of arbitrary size to a fixed-size value that is encrypted.

Cryptographic hash functions combine message-passing capabilities needed in database security and cryptocurrency transactions.

Hash functions are cryptography’s most widely used primitives, in that they are a fundamental building block used for a wide variety of constructions. The recent attacks of Joux, Wang, and ...

Hashing is a cryptographic process that makes it harder for attackers to decrypt stored passwords, if used correctly.

Having SHA-1 as F and MD5 (a different hash function) as G would not be too unreasonable of a choice. The key here is in the word independent, but first a sidestep into elliptic curves.

Among other desirable properties of hash functions, an interesting one is that it should be collision-resistant, that is it should be difficult to find two messages with the same hash value.