16. Encryption: Hashing

Hashing is a method used within encryption that uses mathematical functions to convert data, regardless of its length, into a fixed-length string. This fixed-length output string is known as a hash or hash value, hence the term hashing. Hashing is also commonly referred to as “one-way encryption”, as it is impossible to convert a cryptographic hash back into the data it originally represented. Although hashes are used in a number of different ways, two common use-cases include password verification and information storage. The length of hash is determined by the hashing algorithm used e.g. SHA256, the hashing algorithm used in Bitcoin mining, always produces a hash of 64 characters. Common Hashing Algorithms And although there are hundreds of hashing algorithms some of the most common include: 1) SHA1, which produces a hash length of 40 characters 2) SHA-256, which produces a hash length of 64 characters 3) MD5, which produces a hash length of 32 characters 4) Keccak-512, which produces a hash length of 128 characters 5) And, Keccak-256, which produces a hash length of 64 characters Subscribe the channel for more and better videos