![]() ![]() The only change compared to the first part of this tutorial, is that we use -InputStream instead of -Path And finally we hash the stream content with Get-FileHash.So, we start by creating a new stream ($stringAsStream).Get-FileHash -InputStream $stringAsStream -Algorithm MD5 Let’s start directly with the script code, and I’ll explain after that: $stringAsStream = ::new() However, it’s possible to use Get-FileHash with a stream parameter, so it’s a solution to compute the hash of a string. Unfortunately, there is no direct function to generate a hash from a string in PowerShell. If you are using PowerShell in a script, you can create a variable with the result ($hash for example) and get the hash value with $hash.Hash to make sure it’s the same value as the original file. The -Path is not mandatory, so we don’t use it, we just give the file path and add the algorithm parameter to use MD5 instead of SHA256. You’ll get something like this as a result: Get-FileHash C:\Windows\explorer.exe -Algorithm MD5 It’s not complicated, here is an example: Ok, we know the syntax, let’s see how to use it. I give you the syntax directly, and we’ll see later how to use this to hash a string in PowerShell. It can also be used with a stream instead of a file path. So, the file path is mandatory, and then we can specify the hashing algorithm and a few other options we don’t need in our case. By default, it uses the SHA256 algorithm, but we can add an extra parameter to use MD5. The Get-FileHash cmdlet display the hash value of a file. If it’s the same value, the file transfer is OK, if not the file is corrupted. I explain everything in this article, but in short the idea is to get the MD5 fingerprint of the file before and after the transfer. Password Strength Classifier | Machine Learning How to use Get-FileHash in PowerShell?Įven if MD5 is no longer safe to use for encryption, it’s still an excellent solution to quickly check if a file transfer has been successful or not.
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