Private/ConvertTo-GovUKNotifyBase64Url.ps1
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function ConvertTo-GovUKNotifyBase64Url { <# .SYNOPSIS Encodes a byte array as a base64url string (RFC 7515) with padding removed. .DESCRIPTION Internal helper used when building JSON Web Tokens. Converts standard base64 to the URL-safe alphabet ('+' -> '-', '/' -> '_') and strips '=' padding. .PARAMETER Bytes The bytes to encode. .OUTPUTS System.String #> [CmdletBinding()] [OutputType([string])] param( [Parameter(Mandatory = $true)] [byte[]]$Bytes ) return [Convert]::ToBase64String($Bytes).TrimEnd('=').Replace('+', '-').Replace('/', '_') } |