Public/New-HashString.ps1
|
function New-HashString { <# .SYNOPSIS Compute has from input value and return encoded Base64 string. .DESCRIPTION Compute has from input value and return encoded Base64 string. .PARAMETER Value Specify a Base64 encoded value for which a hash will be computed. .NOTES Author: Nickolaj Andersen Contact: @NickolajA Created: 2021-08-23 Updated: 2021-08-23 Version history: 1.0.0 - (2021-08-23) Function created #> param( [parameter(Mandatory = $true, HelpMessage = "Specify a Base64 encoded value for which a hash will be computed.")] [ValidateNotNullOrEmpty()] [string]$Value ) Process { # Convert from Base64 string to byte array $DecodedBytes = [System.Convert]::FromBase64String($Value) # Construct a new SHA256Managed object to be used when computing the hash $SHA256Managed = New-Object -TypeName "System.Security.Cryptography.SHA256Managed" # Compute the hash [byte[]]$ComputedHash = $SHA256Managed.ComputeHash($DecodedBytes) # Convert computed hash to Base64 string $ComputedHashString = [System.Convert]::ToBase64String($ComputedHash) # Handle return value return $ComputedHashString } } |