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SHA-2 (Secure Hash Algorithm 2) is a set of cryptographic hash functions designed by the United States National Security Agency (NSA) and first published in 2001. [3] [4] They are built using the Merkle–Damgård construction, from a one-way compression function itself built using the Davies–Meyer structure from a specialized block cipher.
Typically distributed alongside sha1sum are sha224sum, sha256sum, sha384sum and sha512sum, which use a specific SHA-2 hash function and b2sum, [1] which uses the BLAKE2 cryptographic hash function. The SHA-1 variants are proven vulnerable to collision attacks , and users should instead use, for example, a SHA-2 variant such as sha256sum or the ...
The Secure Hash Algorithms are a family of cryptographic hash functions published by the National Institute of Standards and Technology (NIST) as a U.S. Federal Information Processing Standard (FIPS), including:
On Unix-like systems, similar functionality can be often obtained by combining find with hashing utilities such as md5sum, sha256sum or tthsum. md5deep exists for Windows and most Unix-based systems, including OS X. It is present in OS X's Fink, Homebrew and MacPorts projects. Binary packages exist for most free Unix systems.
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Next, thrust in an inward and upward motion on the diaphragm. This will force air out of the lungs and remove the blockage. Repeat these abdominal thrusts up to five times, the doctor advised.
Intel SHA Extensions are a set of extensions to the x86 instruction set architecture which support hardware acceleration of Secure Hash Algorithm (SHA) family. It was specified in 2013. [1]
Here's what to know about "No Good Deed" including release date, cast and how to watch. We've got room on the couch! Sign up for USA TODAY's Watch Party newsletter for more recaps of your favorite ...