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Hey, I want to encrypt a USB flash drive, I know TrueCrypt is excellent, but I want to be able to open it on any computer without installing additional software. Thanks

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You need a flash drive with an unencrypted partition for the decryption software. – pavium May 23 '11 at 6:56
Eventually I extracted TrueCrypt on the flash drive, it does not require an installation and can be run from any computed (although I would need a different version for Linux) – Dean May 24 '11 at 6:17
I come from an older tradition in which installation of software simply meant copying it to the computer. But I know where you're coming from -- these days installing software usually mean going through a complex installation process. Is TrueCrypt actually on the flash drive, so it goes wherever the flash drive goes? – pavium May 24 '11 at 7:20
Yeah, it's just outside of the encrypted volume – Dean May 24 '11 at 7:51
up vote 2 down vote accepted

Check out SecurStick (page only available in German, Google translation here).

SecurStick for Windows, Mac OS X and Linux [...] allows you to encrypt data on USB sticks and other media. [...] There is no installation of software or drivers required.

enter image description here

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What if I want to add data later, does it provide a tool to encrypt data I add on the fly, or do I need to repeat the process? – Dean May 23 '11 at 6:58
You have to create the safe zone only once. According to another picture ( you can just copy file to the safe zone. – timbooo May 23 '11 at 7:02
This is a bit complicated to do every time you add files. – Dean May 23 '11 at 7:06
I think you misunderstood something. You have to create the safe zone only ONCE. Then, after pluggin in your USB drive, you have to login through the webinterface, connect to or mount the drive and drop files. Apart from this I didn't even know that encrypting a USB drive without additional software is possible. So either you try SecurStick and see if it suits you OR use additional software. – timbooo May 23 '11 at 7:25

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