Base-64 encoding is a way of taking binary data and turning it into text so that it's more easily transmitted in things like e-mail and HTML form data. I had few requirement to convert / encode text string to Base64 string and vice versa, From encoded Base64 string to convert/decode to normal string.
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In the first script to encode a text string I am using .net object [System.Text.Encoding] and [System.Convert].
#Convert To Base64 $readableText = 'This is Powershell!' $encodedBytes = [System.Text.Encoding]::UTF8.GetBytes($readableText) $encodedText = [System.Convert]::ToBase64String($encodedBytes) $encodedText
This is vice versa process to decode convert base 64 string to readable format. I am using same .net object [System.Text.Encoding] and [System.Convert].
#Convert from Base64 $encodedValue = 'VGhpcyBpcyBQb3dlcnNoZWxsIQ==' $decodedBytes = [System.Convert]::FromBase64String($encodedValue) $decodedText = [System.Text.Encoding]::Utf8.GetString($decodedBytes) $decodedText
Below are some other other format you can use to base convert (encode decode) text string to.
[System.Text.Encoding]::Unicode.GetString([System.Convert]::FromBase64String($encodedText)) [System.Text.Encoding]::ASCII.GetString([System.Convert]::FromBase64String($encodedText)) [System.Text.Encoding]::BigEndianUnicode.GetString([System.Convert]::FromBase64String($encodedText)) [System.Text.Encoding]::Default.GetString([System.Convert]::FromBase64String($encodedText))
Download script here or it is also available on github.com.
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