1. What is "DES"?
DES (Data Encryption Standard) was originally introduced by NSA (National Security Agency) and IBM and has since become a Federal data encryption standard as defined in FIPS 46-3 (Federal Information Processing Standard). Its algorithms are completely public, and it has withstood the test of time. Over time, new cryptographic attacks have been developed, to which DES has been surprisingly resistant. Therefore, as an algorithm with a quarter century under its belt, DES has earned its stripes. However, its 56-bit key length is no longer proof against massive computer attack, and it can no longer be considered truly secure. However, it remains adequate -- for a while, at least -- and is sufficient for most business applications. DES works on 64-bit data segments with a 64-bit key of which 8 bits provide parity, resulting in a 56-bit effective length. A variant on DES is TDES, in which the plain text is processed three times with two or three different DES security keys. As two keys are involved, the result is an encryption equivalent to using a 112-bit key. As three keys are involved, the result is an encryption equivalent to using a 168-bit key. In practice of a 128-bit TDES, the plain text is encrypted with the first key, decrypted with the second key, and then encrypted again with the first key.

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2. How do I connect to my hard drive? (Illustration)

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3. How many security keys do I get?
2 security keys per unit. We recommend you to store one security key in a safe place. In case, you lost your security key. You may send the spare security key to us. We can duplicate it for you. For a further information and rate, please email to skey@gditech.com

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4. What if I lost all my security keys?
Sorry. You have to say "Good Bye!" to your data resides in hard disk. We don't keep the random database.

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5. Does your Kits increase file size after encryption?
No. DES is a complicated mathematical algorithm that computes the original data with 64-bit key length. The size of data after encryption remains the same.

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