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Re: SEEK: freeware to decrypt password-protected Winzip files
de Terry 06/20/2006 12:20
On Tue, 20 Jun 2006 02:38:32 +0100, Franklin <franksays@nomail.com>
wrote:
>I use Winzip ($$$ware) to encrypt personal files so that they are safe
>when transitted over the net.
>
>Some recipients cannot open these files even though they have the
>password.
>
>Which freeware which can open Winzip encypted files? And which method
>of encryption (performed by Winzip) can they decrypt?
>
>Winzip can encrypt using:
>(a) Zip 2.0
>(b) 128-bit AES
>(3) 256-bit AES.
The only one of those that is generally supported is zip 2.0
encryption. Many (most?) freeware can open those.
The AES encryption is pretty much Winzip only -- I don't know of any
freeware that will open them. Note that some of your recipients may be
opening these files using the builti in zip-file handling of Windows
XP. This will handle zip 2.0 passwords only, and they may be reluctant
to install any additional zip program, whether freeware or not.
<OT>
Winzip can create self-extracting exe files, that use AES encryption.
This would let you use the stronger encryption, but not require any
zip program on the recipient's system. Essentially you are sending
them the decryption program along with your data.
</OT>
Terry