SHA256 Algorithm

Veröffentlicht am: 10 Mai 2021
auf dem Kanal: Study & Tutor

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#SHA256 Algorithm #Hash Algorithm #bitcoin
SHA-2 (Secure Hash Algorithm 2), of which SHA-256 is a part, is one of the most popular hashing algorithms out there. SHA-256 is not much more complex to code than SHA-1 and has not yet been compromised in any way. The 256-bit key makes it a good partner function for AES.

In addition, SHA-256 has quite good technical parameters:
block size indicator (byte): 64.
maximum allowed message length (bytes): 33.
characteristics of the message digest size (bytes): 32.
the standard word size (bytes): 4.
internal position length parameter (bytes): 32.
the number of iterations in one cycle: 64.
the speed achieved by the Protocol (MiB/s): approximately 140.

The Sha-256 algorithm is based on the Merkle-Damgard construction method, according to which the initial index is divided into blocks immediately after the change is made, and those, in turn, into 16 words.

SHA-256 is used in several different parts of the Bitcoin network:

Mining uses SHA-256 as the proof-of-work algorithm.
SHA-256 is used in the creation of bitcoin addresses to improve security and privacy.

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