Angelo Bertolli » Science http://bertolli.org Cogito ergo sum. Sat, 24 Jul 2010 02:58:11 +0000 en hourly 1 http://wordpress.org/?v=3.0.1 Evidence of Time Travel http://bertolli.org/evidence-of-time-travel http://bertolli.org/evidence-of-time-travel#comments Tue, 12 Dec 2006 03:18:06 +0000 Angelo http://angelo.bitfreedom.com/evidence-of-time-travel Today I was telling Ryan something that my brother had told me a while ago: that they discovered certain particles traveled backward in time. Of course, he didn’t really believe me, so we looked it up online. I was sort of right (at least right enough). We found something from “the coolest stud at the MIT univeristy“:

“You take a beta particle, which is extremely heavy compared to the typical types of particle these time travel experiments tend to deal with, and bompard it with some arbitrary high frequency EM wave that gets it resonating. A few microseconds after you kill the wave, the resonance persists… what’s really happening is that the presence of time travelling pions is actually causing the beta particles to hallucinate that the EM wave that is YET TO HIT THEM is hitting them right then. They beta particles are in fact experiencing the world a few microseconds ahead of what the experimenter is observing it.”

http://people.csail.mit.edu/rahimi/blog/

]]> http://bertolli.org/evidence-of-time-travel/feed 0 One Time Pad http://bertolli.org/one-time-pad http://bertolli.org/one-time-pad#comments Fri, 04 Feb 2005 06:17:03 +0000 Angelo http://angelo.bitfreedom.com/one-time-pad I did a little bit of research on One Time Pads (OTP). I guess from a theoretical standpoint, they are absolutely secure, but I don’t think it’s very realistic. The problem is the assumptions they make are unrealistic:
* The key must be 100% purely random
* The key must be transmitted securely (!!!)
* The key or any portion of the key can only be used once
* The key must be the same length as the message.

If you achieve these, then you have a pretty cool method of encryption which cannot be cracked even with infinite computing power.

But I have a particular issue the second point. In order to ensure the security of the message, you have to ensure the security of the decryption key (which happens to be symmetric).

In other words: the algorithm is only really as secure as the method you use to transmit the key. So there really is no difference in security between sending the message along the same lines that you have sent the key, and save yourself the trouble of encrypting or decrypting.

http://en.wikipedia.org/wiki/One_time_pad

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