static void Demo3()
{
// SUMMARY: encrypt and decrypt object using a memory stream
// create and populate a serializable demo object
DemoObject DemoObject = new DemoObject()
{
SomeName = "Test Name",
SomeInteger = 99999
};
DemoObject.SomeDictionary.Add("Test1", 1);
DemoObject.SomeDictionary.Add("Test2", 2);
DemoObject.SomeDictionary.Add("Test3", 3);
// empty salt will be generated by encryption
string SaltText;
// need to assign a static password provider implemntation
Aes256EncryptionProvider.PasswordProvider = new AppSettingPasswordProvider();
// create a stream to hold the cipher generated by encryption
MemoryStream TargetCipherStream = new MemoryStream();
// encrypt the demo object into the stream. return the generated salt.
Aes256EncryptionProvider.EncryptObject(TargetCipherStream, DemoObject, out SaltText);
// convert the cipher to a string (not really needed, but good for visuaization
string CipherText = Convert.ToBase64String(TargetCipherStream.ToArray());
// create a new stream and load the cipher
MemoryStream SourceCipherStream = new MemoryStream(Convert.FromBase64String(CipherText));
// decrypt the stream to an object and cast as a demo object
// we'll compare the serializations of original and decrypted demo objects, below
DemoObject DecryptedDemoObject = (DemoObject)Aes256EncryptionProvider.DecryptObject(SourceCipherStream, SaltText);
Console.WriteLine("DEMO #3");
Console.WriteLine("=======================");
Console.WriteLine("\nDemoObject: {0}", new JavaScriptSerializer().Serialize(DemoObject));
Console.WriteLine("\nSalt: {0}", SaltText);
Console.WriteLine("\nCipherText: {0}", CipherText);
Console.WriteLine("\nDemoObject2: {0}", new JavaScriptSerializer().Serialize(DecryptedDemoObject));
Console.WriteLine();
}
static void Demo4()
{
// SUMMARY: encrypt and decrypt object to file
// create and populate a serializable demo object
DemoObject DemoObject = new DemoObject()
{
SomeName = "Test Name",
SomeInteger = 99999
};
DemoObject.SomeDictionary.Add("Test1", 1);
DemoObject.SomeDictionary.Add("Test2", 2);
DemoObject.SomeDictionary.Add("Test3", 3);
// set the file path where the encrypted binary data will be stored
string FilePath = @"C:\Temporary\cipher.bin";
// empty salt will be generated by encryption
string SaltText;
// need to assign a static password provider implemntation
Aes256EncryptionProvider.PasswordProvider = new AppSettingPasswordProvider();
// create the file stream
FileStream TargetCipherStream = new FileStream(FilePath, FileMode.Create);
// encrypt the demo object into the file stream. return the generated salt.
Aes256EncryptionProvider.EncryptObject(TargetCipherStream, DemoObject, out SaltText);
// create another file stream (same path) as the source of the cipher
FileStream SourceCipherStream = new FileStream(FilePath, FileMode.Open);
// decrypt the stream to an object and cast as a demo object
// we'll compare the serializations of the original and decrypted demo objects, below
DemoObject DecryptedDemoObject = (DemoObject)Aes256EncryptionProvider.DecryptObject(SourceCipherStream, SaltText);
Console.WriteLine("DEMO #4");
Console.WriteLine("=======================");
Console.WriteLine("\nDemoObject: {0}", new JavaScriptSerializer().Serialize(DemoObject));
Console.WriteLine("\nSalt: {0}", SaltText);
Console.WriteLine("\nCipherText: Look in the file \"{0}\"", FilePath);
Console.WriteLine("\nDemoObject2: {0}", new JavaScriptSerializer().Serialize(DecryptedDemoObject));
Console.WriteLine();
}
