SHA-2 Hash

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SHA-2 Hash:

From Wikipedia:

SHA-2 is a set of cryptographic hash functions designed by the NSA (U.S. National Security Agency).[3]

The SHA-2 family of algorithms are patented in US 6829355. The United States has released the patent under a royalty-free license.[5]

In 2005, security flaws were identified in SHA-1, namely that a mathematical weakness might exist, indicating that a stronger hash function would be desirable.[6] Although SHA-2 bears some similarity to the SHA-1 algorithm, these attacks have not been successfully extended to SHA-2.