C#

Create a WinZip/7-Zip compatible AES Encrypted Zip

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Creates a WinZip compatible AES-encrypted .zip archive C#

bool success = false;

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

Chilkat.Zip zip = new Chilkat.Zip();

success = zip.NewZip("/myZipDir/aes.zip");
if (success != true) {
    Debug.WriteLine(zip.LastErrorText);
    return;
}

//  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.)
bool recurse = true;
success = zip.AppendFiles("c:/temp/a/*",recurse);
if (success != true) {
    Debug.WriteLine(zip.LastErrorText);
    return;
}

//  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) {
    Debug.WriteLine(zip.LastErrorText);
    return;
}

Debug.WriteLine("Created AES Encrypted Zip.");