Convert int to byte array ?

F

FreewareFire

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Joined
May 23, 2003
Messages
28
Hi,


Question: How do i convert an int value to an byte array? Then i need to use it like " byte[0] " ... " [byte[1] " ans so on.

Thank you! Please a simple way!!! Or with an explanation? Better a little example! :confused:
 
I m not sure abou it , but some where i found this code please check it in this it has converted from String to Byte.

Visual Basic: 
Imports System
Imports System.IO
Imports System.Security.Cryptography
Imports System.Text

Class FileEncrypt
    Public Shared Function ConvertStringToByteArray(s As [String]) As [Byte]()
        Return (New UnicodeEncoding()).GetBytes(s)
    End Function 'ConvertStringToByteArray


    Public Shared Sub Main()
        Dim fs As New FileStream("EncryptedFile.txt", FileMode.Create, FileAccess.Write)

        'Creating a file stream

        Console.WriteLine("Enter Some Text to be stored in encrypted file:")
        Dim strinput As [String] = Console.ReadLine()
        Dim bytearrayinput As [Byte]() = ConvertStringToByteArray(strinput)
        'DES instance with random key
        Dim des As New DESCryptoServiceProvider()
        'create DES Encryptor from this instance
        Dim desencrypt As ICryptoTransform = des.CreateEncryptor()
        'Create Crypto Stream that transforms file stream using des encryption
        Dim cryptostream As New CryptoStream(fs, desencrypt, CryptoStreamMode.Write)
        'write out DES encrypted file
        cryptostream.Write(bytearrayinput, 0, bytearrayinput.Length)

        cryptostream.Close()
        'create file stream to read encrypted file back
        Dim fsread As New FileStream("EncryptedFile.txt", FileMode.Open, FileAccess.Read)
        'create DES Decryptor from our des instance
        Dim desdecrypt As ICryptoTransform = des.CreateDecryptor()
        'create crypto stream set to read and do a des decryption transform on incoming bytes
        Dim cryptostreamDecr As New CryptoStream(fsread, desdecrypt, CryptoStreamMode.Read)
        'print out the contents of the decrypted file
        Console.WriteLine(New StreamReader(cryptostreamDecr, New UnicodeEncoding()).ReadToEnd())

        Console.WriteLine ()
        Console.WriteLine ("Press Enter to continue...")
        Console.ReadLine()
    End Sub 'Main
End Class 'FileEncrypt

[edit]Funny looking C#[/edit]
 
Last edited by a moderator:
Thanks

But still found the answer - by myself:

for exmp. :

byte[] memory = BitConverter.GetBytes(Convert.ToInt16(12));

This converts first the value 12 into Int16 format (2 Bytes !).

Then retrieves from this Int16 value with the GetBytes function the bytes and stores them into varibale "memory".

to read each byte of this value you still need to do follow:

... = memory[0]; //This puts the first byte of memory to any place you definded before the "=" !

to access the 2 Byte: memory[1] - and so on!

But thanks! :)
 
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