public void Init(SerialNumbersSettings.ProtectedApp app)
{
string pubKey;
switch (app)
{
case SerialNumbersSettings.ProtectedApp.SecureMemo:
pubKey = SerialNumbersSettings.ProtectedApplications.PublicKeys.SecureMemo;
break;
case SerialNumbersSettings.ProtectedApp.SearchForDuplicates:
pubKey = SerialNumbersSettings.ProtectedApplications.PublicKeys.SearchForDuplicates;
break;
default:
throw new ArgumentOutOfRangeException("app");
}
RSA_AsymetricEncryption rsaAsymetricEncryption = new RSA_AsymetricEncryption();
RSAKeySetIdentity rsaPublicKeySetIdentity = new RSAKeySetIdentity("", pubKey);
RSAParameters rsaPublicKey = rsaAsymetricEncryption.ParseRSAPublicKeyOnlyInfo(rsaPublicKeySetIdentity);
_serialNumberManager = new SerialNumberManager(rsaPublicKey, app);
}
public async Task <SecureChatUser> RegisterNewUser(SecureChatCreateUserRequest userRequest, RSAKeySetIdentity keySetIdentity)
{
using (var client = new HttpClient())
{
client.BaseAddress = new Uri(HostNameURL);
client.DefaultRequestHeaders.Accept.Clear();
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
HttpResponseMessage response = await client.PostAsJsonAsync("api/securechat/users", userRequest);
if (response.IsSuccessStatusCode)
{
// Get the URI of the created resource.
string responceMessage = await response.Content.ReadAsStringAsync();
StringReader sr = new StringReader(responceMessage);
JsonReader jsonReader = new JsonTextReader(sr);
CreateNewUser createNewUserServerResponce = _jsonSerializer.Deserialize <CreateNewUser>(jsonReader);
RSA_AsymetricEncryption rsaAsymetricEncryption = new RSA_AsymetricEncryption();
RSAParameters rsaParameters = rsaAsymetricEncryption.ParseRSAPublicKeyOnlyInfo(keySetIdentity);
string aesKey = rsaAsymetricEncryption.DecryptObjectUsingRSA(createNewUserServerResponce.EncodedAESKey, rsaParameters);
// Todo decrypt incoming data using AES
SecureChatUser secureChatUser = new SecureChatUser();
//register public key
//PublicKeyData publicKeyData = new PublicKeyData();
//publicKeyData.GUID = userKeySet.RSA_GUID;
//publicKeyData.PublicKey = userKeySet.RSA_PublicKey;
//response = await client.PostAsJsonAsync("api/securechat/publickeys", publicKeyData);
if (response.IsSuccessStatusCode)
{
return(secureChatUser);
}
}
}
return(null);
}
public static SecureChatUser CreateChatUser(string nickname, string guid)
{
SecureChatUser user = new SecureChatUser {
GUID = guid, NickName = nickname, IsVisibleToSearch = false
};
user.UserInfo = new SecureChatUserInfo();
RSA_AsymetricEncryption rsaAsymetricEncryption = new RSA_AsymetricEncryption();
RSAKeySetIdentity rsaKeySet = rsaAsymetricEncryption.GenerateRSAKeyPair(RSA_AsymetricEncryption.RSAKeySize.b4096);
user.User_Certificate = rsaKeySet.RSA_PublicKey;
user.User_PrivateKey = rsaKeySet.RSA_PrivateKey;
user.Server_Certificate = ServerKeyManager.KeyManager.ServerPublicKey;
return(user);
}
private ServerKeyManager()
{
_rsaAsymetricEncryption = new RSA_AsymetricEncryption();
}
public FormCreateNewUser()
{
rsaAsymetricEncryption = new RSA_AsymetricEncryption();
InitializeComponent();
}
public frmMain()
{
InitializeComponent();
_rsaAsymetricEncryption = new RSA_AsymetricEncryption();
}
