public async Task SaveAccessTokens(string clientId, string secretKey)
{
var file = await ApplicationData.Current.LocalFolder.CreateFileAsync(TokenFilename, CreationCollisionOption.ReplaceExisting);
var passphrase = (SystemInfo.HardwareIdentifier + clientId + secretKey).ToSecureString();
using (var keyMaterial = KeyMaterial.CreateKeyMaterial(passphrase, 10000))
{
var content = Aes.Encrypt(keyMaterial, Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(this.tokenInfos)));
await file.WriteBytesAsync(content);
}
}
public void Create_Key_Material_And_Test_Key()
{
var salt = new byte[] { 14, 11, 202, 234, 78, 19, 148, 146, 17, 71, 187, 141, 123, 7, 124, 192 };
var key = new byte[] { 181, 48, 37, 36, 6, 21, 63, 251, 220, 225, 106, 33, 134, 235, 58, 217, 206, 17, 10, 63, 253, 59, 205, 162, 134, 47, 228, 218, 63, 70, 115, 0 };
var initializationVector = new byte[] { 181, 48, 37, 36, 6, 21, 63, 251, 220, 225, 106, 33, 134, 235, 58, 217 };
using (var keyMaterial = KeyMaterial.CreateKeyMaterial("password1".ToSecureString(), salt, 2000))
{
Assert.IsTrue(key.SequenceEqual(keyMaterial.Key));
Assert.IsTrue(initializationVector.SequenceEqual(keyMaterial.InitializationVector));
}
}