Windows validate checksum

Question

I am trying to validate the checksum for a Windows Citrix executable. The checksum that is provided is 64 char long. I have found instructions to validate a checksum by running this in PowerShell:

certutil.exe -hashfile CitrixWorkspaceApp.exe md5

This produces a hash that is shorter than what I need. I tried different algorithm names, but I still cannot match the posted checksum. Since this is the first time I try this, my assumption is that I am doing something wrong. Perhaps I should specify a different algorithm (not "md5" or "sha1") - but which checksum algorithm generates a 64-char value?

Answer 1

The checksum that is provided is 64 char long. I have found instructions to validate a checksum by running this in PowerShell:

certutil.exe -hashfile CitrixWorkspaceApp.exe md5

MD5 hashes are never 64 characters long. If the checksum is a 64 character string, then it was not calculated, using the MD5 hashing algorithm.

Since this is the first time I try this, my assumption is that I am doing something wrong. Perhaps I should specify a different algorithm (not "md5" or "sha1") - but which checksum algorithm generates a 64-char value?

SHA1 nor MD5 would be applicable in this case. SHA256 produces a 64-character string. What should work is the following command:

certutil -hashfile CitrixWorkspaceApp.exe SHA256