SHA-2

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File Format
Name SHA-2
Ontology
Released 2002

Contents

Overview

SHA-2 is a family of cryptographic hash functions. As of 2012, it has six defined and approved members, which can be classified into two sub-families.

SHA-256 sub-family

  • SHA-224 (224-bit)
  • SHA-256 (256-bit)

SHA-512 sub-family

  • SHA-512/224 (224-bit)
  • SHA-512/256 (256-bit)
  • SHA-384 (384-bit)
  • SHA-512 (512-bit)

The specification also defines t-bit hashes named SHA-512/t, for a wide range of values of t, but it only approves SHA-512/224 and SHA-512/256 for use.

Specifications

Software

  • OpenSSL (openssl dgst [-sha224|-sha256|-sha384|-sha512])

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