What Is SHA-256

Q

What is SHA-256 (Secure Hash Algorithm 2 - 256 bit)?

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A

SHA-256 (Secure Hash Algorithm 2 - 256 bits) is a hash function, developed by the US National Security Agency (NSA) and published by the National Institute of Standards and Technology (NIST).

SHA-256 is of the two SHA-2 (Secure Hash Algorithm 2) hash functions. It produces a 256-bit (32-byte) hash value. This hash value is known as a message digest. This message digest is usually then rendered as a hexadecimal number which is 63 digits long.

The other SHA-2 hash function is called SHA-512, which It produces a 512-bit (64-byte) hash value.

 

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