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Openssl sha256 ~/Documents/"Data Integrity Matters.pdf" You can also check and verify sha256 hash by using the openssl command.įrom Terminal.app, use the following command:įor example, to verify the sha256 hash of a file named “Data Integrity Matters.pdf” located in the user Documents folder: Launch Terminal and then use the following command, replacing /path/to/file with the file path as appropriate:įor example, to check the sha256 hash of a file called “TopSecret.tgz” in the user Downloads folder, you could use the following:Ģ3bd4728d59aa19260aaeec757b4f76eca4baebaf33a94f120086c06e7bc80ef ~/Downloads/TopSecret.tgz

The shasum command is available on all modern Macs and can be used to check sha256 hash. There are a variety of types of hashes and checksums, but what we’ll cover here is sha256. For example, if the file checksum matches on your end with the checksum posted by where you received the file, you can be sure the file is identical. We’ll cover two different command line tools to verify a sha256 checksum on the Mac, and both come preinstalled with all modern versions of MacOS.įor those who are not familiar, a checksum is basically a string of letters and numbers that can be used to determine file integrity, like whether an error occurred during transmission, or whether a file was tampered with.