Private/ConvertFrom-BCKey.ps1
|
function ConvertFrom-BCKey { [CmdletBinding()] [OutputType('System.Security.Cryptography.AsymmetricAlgorithm')] param( [Parameter(Mandatory,Position=0,ValueFromPipeline)] [Org.BouncyCastle.Crypto.AsymmetricCipherKeyPair]$BCKeyPair ) if ($BCKeyPair.Private -is [Org.BouncyCastle.Crypto.Parameters.ECPrivateKeyParameters]) { # TODO: Implement this throw "Unsupported key type." } elseif ($BCKeyPair.Private -is [Org.BouncyCastle.Crypto.Parameters.RsaPrivateCrtKeyParameters]) { $pKey = $BCKeyPair.Private $keyParams = New-Object Security.Cryptography.RSAParameters $keyParams.Exponent = $pKey.PublicExponent.ToByteArrayUnsigned() $keyParams.Modulus = $pKey.Modulus.ToByteArrayUnsigned() $keyParams.D = $pKey.Exponent.ToByteArrayUnsigned() $keyParams.P = $pKey.P.ToByteArrayUnsigned() $keyParams.Q = $pKey.Q.ToByteArrayUnsigned() $keyParams.DP = $pKey.DP.ToByteArrayUnsigned() $keyParams.DQ = $pKey.DQ.ToByteArrayUnsigned() $keyParams.InverseQ = $pKey.QInv.ToByteArrayUnsigned() # create the key $key = New-Object Security.Cryptography.RSACryptoServiceProvider $key.ImportParameters($keyParams) return $key } else { # not EC or RSA...don't know what to do with it throw "Unsupported key type." } } |