What is SHA 256?

SHA is a Cryptographic Language whose initials stand for “Secure Hash Algorithm”. It was originally designed by the United States National Security Agency. The initial SHA was known as SHA-1 and it produces a standard 160-bit or 20-byte hash value. This is referred to as the message digest.

SHA-256 is a later version of the Cryptographic Hash Algorithm. A message-digest or cryptographic hash can be assigned to text or data files. SHA-256 produces a 256-bit or 32-byte signature for a text.

A hashing algorithm is a mathematical function that turns information into a fixed size. Hashes help computers to identify or compare files or strings of data and it’s more convenient for a computer to compute a hash than it is the original file.

The SHA-256 file compression function works on a 512-bit message block and a 256-bit intermediate hash value. SHA-256 is a 256-bit block cipher algorithm. It uses encryption on the intermediate hash value.

It employs a message block as a Key. SHA-256 has two separate functions:

  • One- SHA-256 file compression functions.

  • Two- SHA-256 messaging schedule.

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Diamond

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  • Latest iPhone as a gift
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  • Personal manager
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  • +48h discounts extended
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