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midas007 | 12 years ago

That's the whole point of OTP as an imaginary construction!

It's a way to take any block cipher and turn it into a stream cipher with the power of XOR.

(I'm only going to ask this nicely once: cease and desist stalking and harassment.)

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tptacek|12 years ago

No, you have your terminology thoroughly confused. An OTP is an information-theoretically secure cipher where the key is as long as the plaintext. The only relationship between a one-time pad and CTR is the XOR operation. Furthermore, the article you're responding to explains what's wrong with simple stream ciphers for disk sector encryption.