public static SERVER_CLIENT_RSA_KEYS SERVER_CLIENT_RSA_PAIR()
{
SERVER_CLIENT_RSA_KEYS obj = new SERVER_CLIENT_RSA_KEYS();
obj.CLIENT_PRIVATE_KEY = RSA_MODULE.client_side_private_key_generator();
obj.CLIENT_PUBLIC_KEY = RSA_MODULE.client_side_public_key_generator();
obj.SESSION_KEY = EDITIONAL_METHODS.unique_code_generator(16);
return(obj);
}
//Token generation Method
public static dynamic generate_token()
{
try
{
//Initializing Response Dictionary for returning token in json format with required parameters
Dictionary <string, string> Response_Dictionary = new Dictionary <string, string>();
//creating dynamic object
dynamic objdata = new ExpandoObject();
//adding issuing time
objdata.issued_time = DateTime.UtcNow;
//adding expiry time
objdata.expiry_time = TOKEN_MODULE.generate_expiry_time();
//adding unique number for distinct token generation
objdata.unique_number = EDITIONAL_METHODS.unique_code_generator(16);
//adding issuer who issuing this token
objdata.issuer = get_issuer();
//adding audience who can use this token
objdata.audience = get_audience();
//adding roles who can access using this token
List <string> value = get_user_roles();
objdata.roles = value;
//serializing dynamic object into json string
string token_data = JsonConvert.SerializeObject(objdata);
//encrypt token json string using AES encryption
string encrypted_value = AES_MODULE.AES_ENCRYPTION_DATA(token_data, CORE_MODULE.TOKEN_AES_KEY, CORE_MODULE.TOKEN_AES_IV);
//adding generated token as access_token key pair value
CORE_MODULE.Response_Dictionary.Add("access_token", encrypted_value);
foreach (KeyValuePair <string, string> key_pair in CORE_MODULE.Response_Dictionary)
{
Response_Dictionary.Add(key_pair.Key, key_pair.Value);
}
//clearing parameters
CORE_MODULE.Response_Dictionary.Clear();
CORE_MODULE.roles.Clear();
return(Response_Dictionary);
}
catch (Exception ex)
{
throw new HttpResponseException(HttpStatusCode.BadRequest);
}
}
//INITIALIZATION OF ALL METHODS
public static void Initialize(int KEY_LENGTH, string Audience = "", string Issuer = "")
{
//INITIALIZING KEY LENGTH
CORE_MODULE.KEY_LENGTH = KEY_LENGTH;
//GETTING PRIVATE KEY GENERATION FOR CLIENT SIDE PUBLIC KEY AND SERVER SIDE PRIVATE KEY
string RSA_SERVER_parameters = RSA_MODULE.server_side_random_private_key_generator();
//CREATION OF XML INSTANCE
XmlDocument server_xml_doc = new XmlDocument();
//LOADING STRING INTO XML
server_xml_doc.LoadXml(RSA_SERVER_parameters);
//SERILIZING XML DATA INTO JSON FORMAT
string server_jsosn_text = JsonConvert.SerializeXmlNode(server_xml_doc);
//deserialization of data using model
RSA_Conversion_Model server_obj = JsonConvert.DeserializeObject <RSA_Conversion_Model>(server_jsosn_text);
//setting parameters into server rsa parameter variables
SERVER_EXPONENT = server_obj.RSAParameters.Exponent;
SERVER_MODULES = server_obj.RSAParameters.Modulus;
SERVER_P = server_obj.RSAParameters.P;
SERVER_Q = server_obj.RSAParameters.Q;
SERVER_D = server_obj.RSAParameters.D;
SERVER_DP = server_obj.RSAParameters.DP;
SERVER_DQ = server_obj.RSAParameters.DQ;
SERVER_INVERSE_Q = server_obj.RSAParameters.InverseQ;
//GETTING PRIVATE KEY GENERATION FOR SERVER SIDE PUBLIC KEY AND CLIENT SIDE PRIVATE KEY
string RSA_CLIENT_parameters = RSA_MODULE.server_side_random_private_key_generator();
//CREATION OF XML INSTANCE
XmlDocument client_xml_doc = new XmlDocument();
//LOADING STRING INTO XML
client_xml_doc.LoadXml(RSA_CLIENT_parameters);
//SERILIZING XML DATA INTO JSON FORMAT
string client_jsosn_text = JsonConvert.SerializeXmlNode(client_xml_doc);
RSA_Conversion_Model client_obj = JsonConvert.DeserializeObject <RSA_Conversion_Model>(client_jsosn_text);
//setting parameters into client rsa parameter variables
CLIENT_EXPONENT = client_obj.RSAParameters.Exponent;
CLIENT_MODULES = client_obj.RSAParameters.Modulus;
CLIENT_P = client_obj.RSAParameters.P;
CLIENT_Q = client_obj.RSAParameters.Q;
CLIENT_D = client_obj.RSAParameters.D;
CLIENT_DP = client_obj.RSAParameters.DP;
CLIENT_DQ = client_obj.RSAParameters.DQ;
CLIENT_INVERSE_Q = client_obj.RSAParameters.InverseQ;
//Unique number assigning as a key for AES_KEY and IV values of both SERVER SIDE AES and TOKEN Generation
SERVER_SIDE_AES_KEY = EDITIONAL_METHODS.unique_code_generator(16);
SERVER_SIDE_AES_IV = EDITIONAL_METHODS.unique_code_generator(16);
TOKEN_AES_KEY = EDITIONAL_METHODS.unique_code_generator(16);
TOKEN_AES_IV = EDITIONAL_METHODS.unique_code_generator(16);
try
{
//Adding add responses to final response and assigning values
Response_Dictionary = new Dictionary <string, string>();
roles = new List <string>();
token_issuer = Issuer;
token_audience = Audience;
}
catch (Exception ex)
{
throw new HttpResponseException(HttpStatusCode.BadRequest);
}
}
