What is “sha2” Package?

Implementation of SHA-256, SHA-384, and SHA-512 hash algorithms
For more details: http://aarongifford.com/computers/sha.html

Installation

• Open Terminal by pressing command+space then type terminal and hit Enter key.
• Install homebrew first.

  ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" < /dev/null 2> /dev/null

• Install sha2.

  brew install sha2

Now, use sha2!