SHA512 hashes are commonly used to verify data integrity, whether it's for confirming a downloaded file matches the original on a server, validating command output, ensuring a file transfer was successful, or detecting any tampering.

Verifying a SHA512 hash on a Mac is quite straightforward thanks to built-in command line tools that come preinstalled on most modern versions of macOS. We'll walk through two methods to check and verify a SHA512 hash on your Mac using both the shasum command and the openssl command.

How to Check & Verify SHA512 checksum with shasum

The shasum command is included in macOS, making the process of checking SHA512 checksums very simple.

1. Launch the Terminal application found in /Applications/Utilities/

2. Enter the following command, substituting /path/to/file with the actual path of the file you wish to verify: shasum -a 512 /path/to/file

3. Press return, and the terminal will display the SHA512 hash

For instance, if you're verifying the SHA512 hash of a file named “DownloadedFile.zip” located in ~/Downloads, the command and result might appear as follows:

shasum -a 512 ~/Downloads/DownloadedFile.zip

221c66052f4c55ddbedfe75969d2f7513bb2f92d982ca1522264d398d3a23269ed54fc6fcc61e21af09b2692808373a99f93f306dc9af5f77e8c62336b005ad0 DownloadedFile.zip

The lengthy alphanumeric string represents the SHA512 hash.

How to Check SHA512 Hash with openssl

Alternatively, you can use the openssl command to validate and verify a SHA512 hash checksum, which can also be executed via the Terminal on a Mac by running the following command:

openssl sha512 filename

Using the same example file as before, the command and its output would look like this:

~ openssl sha512 ~/Downloads/DownloadedFile.zip

SHA512(DownloadedFile.zip)= 221c66052f4c55ddbedfe75969d2f7513bb2f92d982ca1522264d398d3a23269ed54fc6fcc61e21af09b2692808373a99f93f306dc9af5f77e8c62336b005ad0

The long sequence of letters and numbers displayed here is the SHA512 hash.

That’s all there is to it—you now know two distinct methods for checking and verifying SHA512 hashes. While SHA256 is more widely utilized today, SHA512 is becoming increasingly popular. Even older, less secure options like SHA1 and MD5 still see usage for verifying data or file integrity for comparison purposes.

We've focused on the Mac environment here, but these commands are applicable across any Unix or Linux-based system or subsystem, including Linux itself or Windows with WSL (Linux Bash shell). Enjoy your hashing endeavors.

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