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problem with the xp native support is that it uses the ancient pkzip &quot;encryption&quot; - which is pretty much solvable with a pencil and paper. Winzip uses better grade crypto, but there is no windows mobile version and it is not free. Ditto winrar, and I have not heard of a mobile version of that either.
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problem with the xp native support is that it uses the ancient pkzip "encryption" - which is pretty much solvable with a pencil and paper. Winzip uses better grade crypto, but there is no windows mobile version and it is not free. Ditto winrar, and I have not heard of a mobile version of that either.

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I've not been able to prove this &gt;pkzip &quot;encryption&quot;&lt; but I suspected it is and older less secure method. I have been trying to prove or disprove this to myself... I see off hand references to it, but nothing official or from a reputable source.<br />
I wouldn't trust it in the end to protect something valuable but I'd use it for an added roadblock for certain. i wonder if Vista/2008/win7, if they might have a stronger encryption algo for this, or not... <br />
-rich<br />

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I've not been able to prove this >pkzip "encryption"< but I suspected it is and older less secure method. I have been trying to prove or disprove this to myself... I see off hand references to it, but nothing official or from a reputable source.
I wouldn't trust it in the end to protect something valuable but I'd use it for an added roadblock for certain. i wonder if Vista/2008/win7, if they might have a stronger encryption algo for this, or not...
-rich


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Is there any free tools for file En/Decryption for Windows ? Can it also work on Windows Mobile ?<br />
<br />
Andrew
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Is there any free tools for file En/Decryption for Windows ? Can it also work on Windows Mobile ?

Andrew

File Encryption

Encryption is the process of encoding messages or information in such a way that only authorized parties can read it. In an encryption scheme, the intended communication information or message, referred to as plaintext, is encrypted using an encryption algorithm, generating ciphertext that can only be read if decrypted. For technical reasons, an encryption scheme usually uses a pseudo-random encryption key generated by an algorithm. An authorized recipient can easily decrypt the message with the key provided by the originator to recipients, but not to unauthorized interceptors.