| public Export ( ) : Windows.Storage.Streams.IBuffer | ||
| return | Windows.Storage.Streams.IBuffer | |
public static AsymmetricCipherKeyPair GetRsaKeyPair(CryptographicKey key)
{
var privateKeyBuffer = key.Export(CryptographicPrivateKeyBlobType.Pkcs1RsaPrivateKey);
byte[] privateKeyBytes;
CryptographicBuffer.CopyToByteArray(privateKeyBuffer, out privateKeyBytes);
var asn1 = (Asn1Sequence) Asn1Object.FromByteArray(privateKeyBytes);
var rsa = new RsaPrivateKeyStructure(asn1);
var pubKey = new RsaKeyParameters(false, rsa.Modulus, rsa.PublicExponent);
var privKey = new RsaPrivateCrtKeyParameters(
rsa.Modulus, rsa.PublicExponent, rsa.PrivateExponent,
rsa.Prime1, rsa.Prime2, rsa.Exponent1, rsa.Exponent2,
rsa.Coefficient);
return new AsymmetricCipherKeyPair(pubKey, privKey);
}
private void AsymmetricImportExport(CryptographicKey keyPair)
{
String algName = AlgorithmNames.SelectionBoxItem.ToString();
AsymmetricKeyAlgorithmProvider Algorithm = AsymmetricKeyAlgorithmProvider.OpenAlgorithm(algName);
// Export the public key.
IBuffer blobOfPublicKey = keyPair.ExportPublicKey();
IBuffer blobOfKeyPair = keyPair.Export();
SignVerifyText.Text += " Key pair was successfully exported.\n";
// Import the public key.
CryptographicKey keyPublic = Algorithm.ImportPublicKey(blobOfPublicKey);
// Check the key size.
if (keyPublic.KeySize != keyPair.KeySize)
{
SignVerifyText.Text += "ImportPublicKey failed! The imported key's size did not match the original's!";
return;
}
SignVerifyText.Text += " Public key was successfully imported.\n";
// Import the key pair.
keyPair = Algorithm.ImportKeyPair(blobOfKeyPair);
// Check the key size.
if (keyPublic.KeySize != keyPair.KeySize)
{
SignVerifyText.Text += "ImportKeyPair failed! The imported key's size did not match the original's!";
return;
}
SignVerifyText.Text += " Key pair was successfully imported.\n";
}