VB.NET

Unzip an AES Encrypted Text File directly into a String Variable

See more Zip Examples

A common need is to unzip from an AES encrypted Zip archive directly into a string variable, such that the unencrypted file never resides on disk, even temporarily. This example shows how to do it. VB.NET

Dim success As Boolean = False

' This example requires the Chilkat API to have been previously unlocked.
' See Global Unlock Sample for sample code.

Dim zip As New Chilkat.Zip

' This example opens a WinZip-compatible AES encrypted
' .zip that contains a single file: hamlet.xml.

' It decrypts and unzips hamlet.xml directly into a string
' variable.
zip.SetPassword("secret")
success = zip.OpenZip("qa_data/hamlet.zip")
If (success = False) Then
    Debug.WriteLine(zip.LastErrorText)
    Exit Sub
End If


Dim entry As New Chilkat.ZipEntry
success = zip.EntryOf("hamlet.xml",entry)
If (success = False) Then
    Debug.WriteLine(zip.LastErrorText)
    Exit Sub
End If


' lineEndingBehavior:
' 0 = leave unchanged.
' 1 = convert all to bare LF's
' 2 = convert all to CRLF's
Dim lineEndingBehavior As Integer = 0
Dim srcCharset As String = "utf-8"
Dim xmlText As String = entry.UnzipToString(lineEndingBehavior,srcCharset)
Debug.WriteLine(xmlText)