[Migrated question from stackoverflow here, because they said it was off-topic.]

I'm looking for a list/an overview of the command-line programs native to macOS that let you calculate checksums.

I know of the following:

CRC-32: /usr/bin/crc32

MD2: /usr/bin/openssl dgst -md2 [Note: produces an unknown option '-md2' error on my system]

MD4: /usr/bin/openssl dgst -md4

MD5: /sbin/md5 or /usr/bin/openssl dgst -md5

MDC-2: /usr/bin/openssl dgst -mdc2

RIPEMD-160: /usr/bin/openssl dgst -ripemd160

SHA: /usr/bin/openssl dgst -sha

SHA-1: /usr/bin/shasum -a 1 or /usr/bin/openssl dgst -sha1

SHA-224: /usr/bin/shasum -a 224 or /usr/bin/openssl dgst -sha224

SHA-256: /usr/bin/shasum -a 256 or /usr/bin/openssl dgst -sha256

SHA-384: /usr/bin/shasum -a 384 or /usr/bin/openssl dgst -sha384

SHA-512: /usr/bin/shasum -a 512 or /usr/bin/openssl dgst -sha512

Note: According to the openssl man page BLAKE2B and BLAKE2S can also be calculated, but I haven't managed to do it on macOS, neither with the default /usr/bin/openssl nor with the homebrewed version /usr/local/bin/openssl.

Those are the ones I know. Any other native ways to calculate additional checksums from the command line, e.g. Adler-32, CRC-64, GOST, Whirlpool etc.?

I know you can always install programs like rhash into /usr/local/bin, but I'm trying to look at the native methods first. This can also include scripting your own functions using native libraries, like zlib for Adler-32.

  • Probably not what you're looking for since you already list MD5 (so adding this as a comment rather than an answer): /sbin/md5
    – hertitu
    Aug 10 '16 at 13:36
  • You're right, thank you. Added. Also added openssl alternatives to shasum
    – JayB
    Aug 10 '16 at 14:08
  • 1
    A belated welcome to Super User. Sorry you're getting bounced around the Stack Exchange, but your question may be considered off-topic here, too. This site focuses on how to solve a specific problem. Asking how to calculate a checksum has been asked and answered many times. However, asking what program you can use to do something, or building a list of alternatives, is off-topic (product recommendation or too broad). It's a great question, and certainly useful, but I'm not sure there's an on-topic way to ask for what you're looking for.
    – fixer1234
    Sep 8 '16 at 17:58
  • OK, I might have a solution for you. Use a self-answered question, and make the answer community wiki. The question would be something like "How can I calculate checksums from the command line using a program native to MacOS?", and add that the purpose is to create a canonical reference. Make your list so far an answer, and make sure it includes a sample command for each, not just a list of programs. Add a sentence inviting others to contribute, and make it community wiki to encourage that.
    – fixer1234
    Sep 8 '16 at 18:11
  • Nah, you do it. I don't have the time.
    – JayB
    Sep 9 '16 at 1:09

Sha256 is the default algorithm of openssl. OpenSSL-1.1.0 has included blake2b and blake2s message digests algorithms. You can use this command to see the list of supported algorithms.

openssl list --digest-commands 

If you use latest openssl-1.1.0b ( 29th September,2016 ), you could get this:

blake2b512        blake2s256        gost              md4
md5               mdc2              rmd160            sha1
sha224            sha256            sha384            sha512

It means that, you can use blake2b or blake2s as usual.

openssl dgst -blake2b512 /path/to/file
openssl dgst -blake2s256 /path/to/file
  • 1
    Nitpick: SHA256 is default for openssl dgst as of 1.1.0; before that it's MD5. Sep 29 '16 at 16:49

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