Imports Microsoft.VisualBasic
Imports System.Security.Cryptography
Imports System.Text
Imports System.IO
Public Class Class1
Public Shared Function Encryptar(ByVal strValor As String) As String
Dim strEncrKey As String = "&%#@?,:*"
Dim byKey() As Byte = {}
Dim IV() As Byte = {&H12, &H34, &H56, &H78, &H90, &HAB, &HCD, &HEF}
Try
byKey = System.Text.Encoding.UTF8.GetBytes(Left(strEncrKey, 8))
Dim des As New DESCryptoServiceProvider
Dim inputByteArray() As Byte = Encoding.UTF8.GetBytes(strValor)
Dim ms As New MemoryStream
Dim cs As New CryptoStream(ms, des.CreateEncryptor(byKey, IV), CryptoStreamMode.Write)
cs.Write(inputByteArray, 0, inputByteArray.Length)
cs.FlushFinalBlock()
Return Convert.ToBase64String(ms.ToArray())
Catch ex As Exception
Return ex.Message
End Try
End Function
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Public Shared Function Decrypt(ByVal strValor As String) As String
Dim sDecrKey As String = "&%#@?,:*"
Dim byKey() As Byte = {}
Dim IV() As Byte = {&H12, &H34, &H56, &H78, &H90, &HAB, &HCD, &HEF}
Dim inputByteArray(strValor.Length) As Byte
Try
byKey = System.Text.Encoding.UTF8.GetBytes(Left(sDecrKey, 8))
Dim des As New DESCryptoServiceProvider
If Environment.GetEnvironmentVariable("PROCESSOR_ARCHITECTURE") = "x64" Then
If Trim(strValor).Length = 0 Then
Throw New Exception("Password No debe estar en Blanco")
End If
End If
inputByteArray = Convert.FromBase64String(strValor)
Dim ms As New MemoryStream
Dim cs As New CryptoStream(ms, des.CreateDecryptor(byKey, IV), CryptoStreamMode.Write)
cs.Write(inputByteArray, 0, inputByteArray.Length)
cs.FlushFinalBlock()
Dim encoding As System.Text.Encoding = System.Text.Encoding.UTF8
Return encoding.GetString(ms.ToArray())
Catch ex As Exception
Return ex.Message
End Try
End Function
End Class
