B4X

Create a WinZip/7-Zip compatible AES Encrypted Zip

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Creates a WinZip compatible AES-encrypted .zip archive B4X

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 ChilkatZip
zip.Initialize("zip")

success = zip.NewZip("/myZipDir/aes.zip")
If success <> True Then
    Log(zip.LastErrorText)
    Return
End If


'  Set properties to indicate that the Zip should be
'  AES encrypted.

'  A value of 4 indicates WinZip compatible AES encryption.
zip.Encryption = 4

'  Key length can be 128, 192, or 256 bits.
zip.EncryptKeyLength = 128

'  Set the password for AES encryption:
zip.EncryptPassword = "myPassword"

'  Add a directory tree to be zipped.  (The files
'  are not compressed at this point -- only references
'  to the files and directories are added to the zip object.)
Dim recurse As Boolean = True
success = zip.AppendFiles("c:/temp/a/*", recurse)
If success <> True Then
    Log(zip.LastErrorText)
    Return
End If


'  Create the encrypted zip ("/myZipDir/aes.zip")
'  The path of the zip is what was originally passed
'  to the NewZip method (above).  
success = zip.WriteZipAndClose
If success <> True Then
    Log(zip.LastErrorText)
    Return
End If


Log("Created AES Encrypted Zip.")