Imports System.Text
Imports System.Security.Cryptography
Public Class Utils
	Public Class ConfigFile
    Public Property Port As Integer
    Public Property Username As String
    Public Property Password As String

    Public Sub SaveToFile(Path As String)
						Using File As New System.IO.FileStream(Path, System.IO.FileMode.Create)
            Dim Writer As New System.Xml.Serialization.XmlSerializer(GetType(ConfigFile))
            Writer.Serialize(File, Me)
        End Using
    End Sub

    Public Shared Function LoadFromFile(ByVal FilePath As String) As ConfigFile
        Using File As New System.IO.FileStream(FilePath, System.IO.FileMode.Open)
            Dim Reader As New System.Xml.Serialization.XmlSerializer(GetType(ConfigFile))
            Return DirectCast(Reader.Deserialize(File), ConfigFile)
        End Using
    End Function
  
End Class
    Public Shared Function DecryptString(EncryptedString As String) As String
        If String.IsNullOrEmpty(EncryptedString) Then
            Return String.Empty
        Else
            Return Decrypt(EncryptedString, "N3st22", "88552299", 2, "464R5DFA5DL6LE28", 256)
        End If
    End Function

    Public Shared Function Decrypt(ByVal cipherText As String, _
                                   ByVal passPhrase As String, _
                                   ByVal saltValue As String, _
                                    ByVal passwordIterations As Integer, _
                                   ByVal initVector As String, _
                                   ByVal keySize As Integer) _
                           As String
        Dim initVectorBytes As Byte()
        initVectorBytes = Encoding.ASCII.GetBytes(initVector)
        Dim saltValueBytes As Byte()
        saltValueBytes = Encoding.ASCII.GetBytes(saltValue)
        Dim cipherTextBytes As Byte()
		cipherTextBytes = System.Convert.FromBase64String(cipherText)
        Dim password As New Rfc2898DeriveBytes(passPhrase, _
                                           saltValueBytes, _
                                           passwordIterations)
        Dim keyBytes As Byte()
        keyBytes = password.GetBytes(CInt(keySize / 8))
        Dim symmetricKey As New AesCryptoServiceProvider
        symmetricKey.Mode = CipherMode.CBC
        Dim decryptor As ICryptoTransform
        decryptor = symmetricKey.CreateDecryptor(keyBytes, initVectorBytes)
				Dim memoryStream As System.IO.MemoryStream
				memoryStream = New System.IO.MemoryStream(cipherTextBytes)
        Dim cryptoStream As CryptoStream
        cryptoStream = New CryptoStream(memoryStream, _
                                        decryptor, _
                                        CryptoStreamMode.Read)
        Dim plainTextBytes As Byte()
        ReDim plainTextBytes(cipherTextBytes.Length)
        Dim decryptedByteCount As Integer
        decryptedByteCount = cryptoStream.Read(plainTextBytes, _
                                               0, _
                                               plainTextBytes.Length)
        memoryStream.Close()
        cryptoStream.Close()
        Dim plainText As String
        plainText = Encoding.ASCII.GetString(plainTextBytes, _
                                            0, _
                                            decryptedByteCount)
	System.Console.WriteLine(plainText)
	Return plainText
    End Function

Public Class SsoIntegration
    Public Property Username As String
    Public Property Password As String
End Class
    
    Sub Main()
		Dim test As New SsoIntegration With {.Username = "c.smith", .Password = Utils.DecryptString("fTEzAfYDoz1YzkqhQkH6GQFYKp1XY5hm7bjOP86yYxE=")}
    End Sub
End Class

C++ Online Compiler

Write, Run & Share C++ code online using OneCompiler's C++ online compiler for free. It's one of the robust, feature-rich online compilers for C++ language, running on the latest version 17. Getting started with the OneCompiler's C++ compiler is simple and pretty fast. The editor shows sample boilerplate code when you choose language as C++ and start coding!

Read inputs from stdin

OneCompiler's C++ online compiler supports stdin and users can give inputs to programs using the STDIN textbox under the I/O tab. Following is a sample program which takes name as input and print your name with hello.

#include <iostream>
#include <string>
using namespace std;

int main() 
{
    string name;
    cout << "Enter name:";
    getline (cin, name);
    cout << "Hello " << name;
    return 0;
}

About C++

C++ is a widely used middle-level programming language.

  • Supports different platforms like Windows, various Linux flavours, MacOS etc
  • C++ supports OOPS concepts like Inheritance, Polymorphism, Encapsulation and Abstraction.
  • Case-sensitive
  • C++ is a compiler based language
  • C++ supports structured programming language
  • C++ provides alot of inbuilt functions and also supports dynamic memory allocation.
  • Like C, C++ also allows you to play with memory using Pointers.

Syntax help

Loops

1. If-Else:

When ever you want to perform a set of operations based on a condition If-Else is used.

if(conditional-expression) {
   //code
}
else {
   //code
}

You can also use if-else for nested Ifs and If-Else-If ladder when multiple conditions are to be performed on a single variable.

2. Switch:

Switch is an alternative to If-Else-If ladder.

switch(conditional-expression){    
case value1:    
 // code    
 break;  // optional  
case value2:    
 // code    
 break;  // optional  
......    
    
default:     
 code to be executed when all the above cases are not matched;    
}

3. For:

For loop is used to iterate a set of statements based on a condition.

for(Initialization; Condition; Increment/decrement){  
  //code  
}

4. While:

While is also used to iterate a set of statements based on a condition. Usually while is preferred when number of iterations are not known in advance.

while (condition) {  
// code 
}

5. Do-While:

Do-while is also used to iterate a set of statements based on a condition. It is mostly used when you need to execute the statements atleast once.

do {  
 // code 
} while (condition);

Functions

Function is a sub-routine which contains set of statements. Usually functions are written when multiple calls are required to same set of statements which increases re-usuability and modularity. Function gets run only when it is called.

How to declare a Function:

return_type function_name(parameters);

How to call a Function:

function_name (parameters)

How to define a Function:

return_type function_name(parameters) {  
 // code
}