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Scrypt: C++ [10] PoW: One of the first cryptocurrencies to use scrypt as a hashing algorithm. 2011 Namecoin: NMC Vincent Durham [11] [12] SHA-256d: C++ [13] PoW: Also acts as an alternative, decentralized DNS. 2012 Peercoin: PPC Sunny King (pseudonym) [citation needed] SHA-256d [citation needed] C++ [14] PoW & PoS: The first cryptocurrency to ...
The scrypt function is designed to hinder such attempts by raising the resource demands of the algorithm. Specifically, the algorithm is designed to use a large amount of memory compared to other password-based KDFs, [ 6 ] making the size and the cost of a hardware implementation much more expensive, and therefore limiting the amount of ...
Litecoin was a source code fork of the Bitcoin Core client, originally differing by having a decreased block generation time (2.5 minutes), increased maximum number of coins, different hashing algorithm (scrypt, instead of SHA-256), faster difficulty retarget, and a slightly modified GUI. [citation needed]
The validity of each cryptocurrency's coins is provided by a blockchain. A blockchain is a continuously growing list of records, called blocks, which are linked and secured using cryptography. [59] [61] Each block typically contains a hash pointer as a link to a previous block, [61] a timestamp, and transaction data. [62]
Example of a Key Derivation Function chain as used in the Signal Protocol.The output of one KDF function is the input to the next KDF function in the chain. In cryptography, a key derivation function (KDF) is a cryptographic algorithm that derives one or more secret keys from a secret value such as a master key, a password, or a passphrase using a pseudorandom function (which typically uses a ...
The following tables compare general and technical information for a number of cryptographic hash functions. See the individual functions' articles for further information. This article is not all-inclusive or necessarily up-to-date. An overview of hash function security/cryptanalysis can be found at hash function security summary.
Scrypt; Secret sharing using the Chinese remainder theorem; SecureLog; Six-state protocol; Software taggant; Substitution–permutation network; Summation generator; Supersingular isogeny key exchange; Symmetric-key algorithm
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