public void ConfigurationProtectorTestEncryptedButNoProvider()
{
RijndaelManaged myRijndael = new RijndaelManaged();
myRijndael.GenerateKey();
KeyAlgorithmPair pair = new KeyAlgorithmPair(myRijndael.Key, myRijndael.GetType().AssemblyQualifiedName);
SaveKeyPair(pair, xmlStringWithDpapi);
using (ConfigurationContext context = CreateContext(xmlStringNoStorageProvider))
{
using (ConfigurationProtector protector = new ConfigurationProtector())
{
protector.Load(context, sectionName);
}
}
}
public void ConfigurationProtectorTestWithDpapi()
{
string mySecret = "mary had a little lamb";
RijndaelManaged myRijndael = new RijndaelManaged();
myRijndael.GenerateKey();
KeyAlgorithmPair pair = new KeyAlgorithmPair(myRijndael.Key, myRijndael.GetType().AssemblyQualifiedName);
SaveKeyPair(pair, xmlStringWithDpapi);
ConfigurationContext context = CreateContext(xmlStringWithDpapi);
using (ConfigurationProtector protector = new ConfigurationProtector())
{
protector.Load(context, sectionName);
byte[] inBytes = UnicodeEncoding.Unicode.GetBytes(mySecret);
byte[] encryptedBytes = protector.Encrypt(inBytes);
byte[] decryptedBytes = protector.Decrypt(encryptedBytes);
Assert.AreEqual(mySecret, UnicodeEncoding.Unicode.GetString(decryptedBytes));
}
}
/// <summary>
/// Initializes a new instance of the <see cref="RijndaelEncryptor"/> class using the user supplied key and initial vector arrays.
/// NOTE: these arrays will be validated for use with the <see cref="RijndaelManaged"/> cypher.
/// </summary>
/// <param name="encryptedKey"></param>
/// <param name="encryptedIV"></param>
public RijndaelEncryptor(byte[] encryptedKey, byte[] encryptedIV)
{
if (encryptedKey == null)
{
throw new ArgumentNullException("encryptedKey");
}
if (encryptedIV == null)
{
throw new ArgumentNullException("encryptedIV");
}
//Verify encrypted key length is valid for this cryptor algo.
int keylen = encryptedKey.Length << 3;
if (!_crypt.ValidKeySize(keylen))
{
string errmsg = "Encryption key length(" + keylen.ToString() + ") is not for this algorithm:" + _crypt.GetType().Name;
throw new ApplicationException(errmsg);
}
//Verify encrypted iv length is valid for this cryptor algo.
int len = encryptedIV.Length << 3;
if (len != _crypt.BlockSize)
{
string errmsg = "Encryption key length(" + len.ToString() + ") is not for this algorithm:" + _crypt.GetType().Name;
throw new ApplicationException(errmsg);
}
EncryptKey = encryptedKey;
EncryptIV = encryptedIV;
}