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Tao Machine Key Cho Webconfig

The document provides a PowerShell function named Generate-MachineKey that generates a machine key for web applications. It allows users to specify decryption and validation algorithms, and outputs the machine key in a format suitable for inclusion in a Web.config file. The function includes internal methods for converting binary data to hexadecimal format and handles different cryptographic algorithms.

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4 views1 page

Tao Machine Key Cho Webconfig

The document provides a PowerShell function named Generate-MachineKey that generates a machine key for web applications. It allows users to specify decryption and validation algorithms, and outputs the machine key in a format suitable for inclusion in a Web.config file. The function includes internal methods for converting binary data to hexadecimal format and handles different cryptographic algorithms.

Uploaded by

binhccchinh
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as TXT, PDF, TXT or read online on Scribd
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# Powershell >> cmd bellow >> then type "Generate-MachineKey -validation sha1" and

paste result into Webconfig.


function Generate-MachineKey {
[CmdletBinding()]
param (
[ValidateSet("AES", "DES", "3DES")]
[string]$decryptionAlgorithm = 'AES',
[ValidateSet("MD5", "SHA1", "HMACSHA256", "HMACSHA384", "HMACSHA512")]
[string]$validationAlgorithm = 'HMACSHA256'
)
process {
function BinaryToHex {
[CmdLetBinding()]
param($bytes)
process {
$builder = new-object System.Text.StringBuilder
foreach ($b in $bytes) {
$builder =
$builder.AppendFormat([System.Globalization.CultureInfo]::InvariantCulture,
"{0:X2}", $b)
}
$builder
}
}
switch ($decryptionAlgorithm) {
"AES" { $decryptionObject = new-object
System.Security.Cryptography.AesCryptoServiceProvider }
"DES" { $decryptionObject = new-object
System.Security.Cryptography.DESCryptoServiceProvider }
"3DES" { $decryptionObject = new-object
System.Security.Cryptography.TripleDESCryptoServiceProvider }
}
$decryptionObject.GenerateKey()
$decryptionKey = BinaryToHex($decryptionObject.Key)
$decryptionObject.Dispose()
switch ($validationAlgorithm) {
"MD5" { $validationObject = new-object System.Security.Cryptography.HMACMD5 }
"SHA1" { $validationObject = new-object System.Security.Cryptography.HMACSHA1
}
"HMACSHA256" { $validationObject = new-object
System.Security.Cryptography.HMACSHA256 }
"HMACSHA385" { $validationObject = new-object
System.Security.Cryptography.HMACSHA384 }
"HMACSHA512" { $validationObject = new-object
System.Security.Cryptography.HMACSHA512 }
}
$validationKey = BinaryToHex($validationObject.Key)
$validationObject.Dispose()
[string]::Format([System.Globalization.CultureInfo]::InvariantCulture,
"<machineKey decryption=`"{0}`" decryptionKey=`"{1}`" validation=`"{2}`"
validationKey=`"{3}`" />",
$decryptionAlgorithm.ToUpperInvariant(), $decryptionKey,
$validationAlgorithm.ToUpperInvariant(), $validationKey)
}
}

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