// signature
public static string CreateSignature(string email, string password, RSAParameters key)
{
RSACryptoServiceProvider rsa = new RSACryptoServiceProvider();
rsa.ImportParameters(key);
SHA1 sha1 = SHA1.Create();
byte[] prefix = { 0x00 };
byte[] hash = sha1.ComputeHash(GoogleKeyUtils.KeyToStruct(key)).Take(4).ToArray();
byte[] encrypted = rsa.Encrypt(Encoding.UTF8.GetBytes(email + "\x00" + password), true);
return(DataTypeUtils.UrlSafeBase64(DataTypeUtils.CombineBytes(prefix, hash, encrypted)));
}
// perform_oauth
public async Task <Dictionary <string, string> > PerformOAuth(string email, string masterToken, string service, string app, string clientSig,
string deviceCountry = "us", string operatorCountry = "us", string lang = "en", int sdkVersion = 21)
{
var dict = new Dictionary <string, string> {
{ "accountType", "HOSTED_OR_GOOGLE" },
{ "Email", email },
{ "has_permission", 1.ToString() },
{ "EncryptedPasswd", masterToken },
{ "service", service },
{ "source", "android" },
{ "app", app },
{ "client_sig", clientSig },
{ "device_country", deviceCountry },
{ "operatorCountry", operatorCountry },
{ "lang", lang },
{ "sdk_version", sdkVersion.ToString() }
};
string result = await PerformAuthRequest(dict);
return(GoogleKeyUtils.ParseAuthResponse(result));
}
// perform_master_login
public async Task <Dictionary <string, string> > PerformMasterLogin(string email, string password, string service = "ac2dm",
string deviceCountry = "us", string operatorCountry = "us", string lang = "en", int sdkVersion = 21)
{
string signature = GoogleKeyUtils.CreateSignature(email, password, androidKey);
var dict = new Dictionary <string, string> {
{ "accountType", "HOSTED_OR_GOOGLE" },
{ "Email", email },
{ "has_permission", 1.ToString() },
{ "add_account", 1.ToString() },
{ "EncryptedPasswd", signature },
{ "service", service },
{ "source", "android" },
{ "device_country", deviceCountry },
{ "operatorCountry", operatorCountry },
{ "lang", lang },
{ "sdk_version", sdkVersion.ToString() }
};
string result = await PerformAuthRequest(dict);
return(GoogleKeyUtils.ParseAuthResponse(result));
}