public void TestAesDefaultKey()
{
// arrange
using (var csp = new AESCryptoProvider())
{
var random = new Random(42);
var data = new byte[(int)(csp.KeySize * 1.5)];
random.NextBytes(data);
var msSrc = new MemoryStream();
var mswSrc = msSrc.AsUnclosable();
var msDst = new MemoryStream();
var mswDst = msDst.AsUnclosable();
mswSrc.Write(data, 0, data.Length);
mswSrc.Position = 0;
// act
csp.Encrypt(mswDst, mswSrc, (int)mswSrc.Length);
mswSrc.Position = 0;
mswDst.Position = 0;
csp.Decrypt(mswSrc, mswDst, (int)mswDst.Length);
var decryptedData = msSrc.GetBuffer();
// assert
for (int i = 0; i < msSrc.Length; i++)
{
Assert.AreEqual(data[i], decryptedData[i]);
}
}
}
public void TestAes()
{
// arrange
using (var csp = new AESCryptoProvider())
{
var random = new Random(42);
var keySizes = csp.ValidKeySizes;
foreach (var sz in keySizes)
{
csp.KeySize = sz;
var key = new byte[sz / 8];
GenerateKey(key);
var data = new byte[(int)(sz / 8 * 1.5)];
random.NextBytes(data);
var msSrc = new MemoryStream();
var mswSrc = msSrc.AsUnclosable();
var msDst = new MemoryStream();
var mswDst = msDst.AsUnclosable();
mswSrc.Write(data, 0, data.Length);
mswSrc.Position = 0;
// act
csp.Key = key;
csp.Encrypt(mswDst, mswSrc, (int)mswSrc.Length);
mswSrc.Position = 0;
mswDst.Position = 0;
csp.Decrypt(mswSrc, mswDst, (int)mswDst.Length);
var decryptedData = msSrc.GetBuffer();
// assert
for (int i = 0; i < msSrc.Length; i++)
{
Assert.AreEqual(data[i], decryptedData[i]);
}
}
}
}
public void Execute()
{
var aes = new AESCryptoProvider
{
DefaultEncryptionEncodeMode = EncodeMode.Base64,
DefaultEncoding = Encoding.UTF8,
Key = "12345678"
};
aes.BeforeSetSymmetricAlgorithm += (sender, args) =>
{
var algorithm = args.Data;
// toDo something...
algorithm.KeySize = 128;
};
aes.AfterSetSymmetricAlgorithm += (sender, args) =>
{
var algorithm = args.Data;
// toDo something...
Console.WriteLine($"KeySize: {algorithm.KeySize}, BlockSize: {algorithm.BlockSize}");
};
var data = "测试test123...";
Console.WriteLine($"原始数据：{data}");
var encrypt = aes.Encrypt(data);
Console.WriteLine($"加密后：{encrypt}");
var decrypt = aes.Decrypt(encrypt);
Console.WriteLine($"解密后：{decrypt}");
}
public void CanEncrypt()
{
//These two values should not be hard coded in your code.
byte[] key = { 251, 9, 67, 117, 237, 158, 138, 150, 255, 97, 103, 128, 183, 65, 76, 161, 7, 79, 244, 225, 146, 180, 51, 123, 118, 167, 45, 10, 184, 181, 202, 190 };
byte[] vector = { 214, 11, 221, 108, 210, 71, 14, 15, 151, 57, 241, 174, 177, 142, 115, 137 };
using (var rijndaelHelper = new AESCryptoProvider(key, vector))
{
var encrypt = rijndaelHelper.Encrypt(RawValue);
Assert.AreNotEqual("StringToEncrypt", encrypt);
}
}
public object ShowEncryptedOrders(string RSAPublicKey)
{
//for encription data using client public key
var rsaProvider = new RSACryptoServiceProvider(1024);
rsaProvider.FromXmlString(RSAPublicKey); //set public rsa key of client to server rsaProvider
var rsaSignatureProvider = new RSACryptoServiceProvider();
var rsaSignatureProviderPublicKey = rsaSignatureProvider.ToXmlString(false); //public key of rsa signature provider
//create new instance of pbkdf with random iv
var pbKdf = new Rfc2898DeriveBytes("8080808080808080", 16);
byte[] aesKey = pbKdf.GetBytes(16); //System.Text.Encoding.UTF8.GetBytes("808080808080808e");
byte[] aesIv = pbKdf.GetBytes(16); //System.Text.Encoding.UTF8.GetBytes("8080808080808080");
using (var db = new ApplicationDbContext())
{
var userId = User.Identity.GetUserId();
var orders = db.UserOrders
.Where(o => o.UserId == userId)
.Select(o => new
{
OrderId = o.Id,
CinemaName = o.FilmSession.Cinema.Name,
FilmName = o.FilmSession.Film.Name,
HallName = o.FilmSession.HallName,
FilmDetailsLink = "/Home/FilmDetails/" + o.FilmSession.FilmId.ToString(),
Price = o.FilmSession.Price,
DateTime = o.FilmSession.DateTime
}).ToList();
var encryptedAesKey = rsaProvider.Encrypt(aesKey, true);
var encryptedAesIv = rsaProvider.Encrypt(aesIv, true);
var signedAesKey = rsaSignatureProvider.SignData(encryptedAesKey, new SHA1CryptoServiceProvider());
var responseData = new
{
encryptedAesKey = System.Convert.ToBase64String(encryptedAesKey),
encryptedAesIv = System.Convert.ToBase64String(encryptedAesIv),
orders = AESCryptoProvider.Encrypt(JsonConvert.SerializeObject(orders), aesKey, aesIv),
signedData = System.Convert.ToBase64String(signedAesKey),
signaturePublicKey = rsaSignatureProviderPublicKey
};
return(JsonConvert.SerializeObject(responseData));
}
}
