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https://github.com/TheUltimateHacker/ShiftOS.git
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ShiftOS is a game about evolving an experimental operating system called "ShiftOS" from a completely black and white text based command line based OS to a fully graphical operating system filled with advanced features and beautiful colours. The level of customization will exceed the levels of real world operating systems
55 lines
No EOL
1.8 KiB
VB.net
55 lines
No EOL
1.8 KiB
VB.net
Imports System
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Imports System.IO
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Imports System.Security
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Imports System.Security.Cryptography
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Imports System.Text
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Public Class File_Crypt
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Public Const sSecretKey As String = "Password"
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Public Shared Sub EncryptFile(ByVal sInputFilename As String, ByVal sOutputFilename As String, ByVal sKey As String)
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Dim fsInput As New FileStream(sInputFilename, FileMode.Open, FileAccess.Read)
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Dim fsEncrypted As New FileStream(sOutputFilename, FileMode.Create, FileAccess.Write)
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Dim DES As New DESCryptoServiceProvider()
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DES.Key = ASCIIEncoding.ASCII.GetBytes(sKey)
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DES.IV = ASCIIEncoding.ASCII.GetBytes(sKey)
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Dim desencrypt As ICryptoTransform = DES.CreateEncryptor()
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Dim cryptostream As New CryptoStream(fsEncrypted, desencrypt, CryptoStreamMode.Write)
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Dim bytearrayinput(fsInput.Length - 1) As Byte
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fsInput.Read(bytearrayinput, 0, bytearrayinput.Length)
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cryptostream.Write(bytearrayinput, 0, bytearrayinput.Length)
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cryptostream.Dispose()
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fsInput.Dispose()
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fsEncrypted.Dispose()
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End Sub
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Public Shared Sub DecryptFile(ByVal sInputFilename As String, ByVal sOutputFilename As String, ByVal sKey As String)
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Dim DES As New DESCryptoServiceProvider()
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DES.Key() = ASCIIEncoding.ASCII.GetBytes(sKey)
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DES.IV = ASCIIEncoding.ASCII.GetBytes(sKey)
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Dim fsread As New FileStream(sInputFilename, FileMode.Open, FileAccess.Read)
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Dim desdecrypt As ICryptoTransform = DES.CreateDecryptor()
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Dim cryptostreamDecr As New CryptoStream(fsread, desdecrypt, CryptoStreamMode.Read)
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Dim fsDecrypted As New StreamWriter(sOutputFilename)
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fsDecrypted.Write(New StreamReader(cryptostreamDecr).ReadToEnd)
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fsDecrypted.Flush()
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fsread.Dispose()
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fsDecrypted.Dispose()
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End Sub
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End Class |