Prajwalan’s Weblog

A protocol for two Italians to pass through a door

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The protocol goes as below.

A: Please.
B: Please.
A: I insist.
B: So do I.
A: OK then, thank you.
B: You are most welcome.

The protocol is zero-knowledge because it can be simulated without knowing
any of the secrets of these Italians; in fact, the execution is independent of their
secrets as well as of anything else.

Loosely speaking, zero-knowledge proofs are proofs that yield nothing beyond
the validity of the assertion. That is, a verifier obtaining such a proof only
gains conviction in the validity of the assertion.

Source: Silvio Micali, 1985 and A Brief Introduction to Zero-Knowledge (by Oded Goldreich)

Written by prajwalan

February 15, 2009 at 11:26 am

I am addicted to “The X Files”

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I don’t remember exactly, but the last time I watched X Files, I must have been in grade 6 or 7. Those days, an Indian channel called “Star TV” used to broadcast the series. Back then, I did not understand any episodes. Yet, I kept myself glued to the TV screen, each night the show was on the air. Without understanding, the story and characters in the series, I fell in love with it. I was not able to watch all the episodes and missed several episodes in between. Nonetheless, each episodes were/are different and as such that was not much of problem.

I think the first episode of X Files, that I watched, was called “Soft Light” from season 2. I can’t expressed how much I liked the episode. I think the reason, I like X Files and the reason millions of people out there like it, is that it deals with some of the most intricate topics that haunt us. It deals with the questions, of whose answers, we were also searching from a long time back. The alien invasion, bio weapons, supernatural are the topics that are yet unanswered. Many people do not even believe they exist. But deep down inside everybody, there is that something that makes people wander around searching answers, searching the proof of their existence.

I have watched all the episodes of X files from season 1 to 7. That will make around 150 episodes or more. There are eleven seasons altogether. I am looking out for DVD of rest of the seasons. But no matter how much I watch, I just can get enough of it.

For now thats it. I will post more on the X Files in days to come.

Meanwhile, you can enjoy some of the stills from different episodes of the series.

Written by prajwalan

December 19, 2008 at 1:03 pm

Best of Karna Das

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I am a big fan of sentimental songs, particularly those sung by Karna Das. I just love the way he sings. His singing style is really unique and heart touching. Many of his songs are so dear to me that I listen to them several times each week or sometimes everyday. Yet, I can’t get enough.

I have listed some of the best songs by him. I hope you will also like them.

1. Sunsan raat shital pawan

URL : http://www.youtube.com/watch?v=MNSYsGEcjv4

सुनसान रात सितल पवन, साथी तिम्रो याद बिदेशी भुमी
बिती रहेछ जिवन यहाँ, माया तिम्रो हो पत्र चुमी
सुनसान रात ….
कहिले हाँस्छु कहिले रुन्छु, माया म है पागल सरी
तिम्रो तस्विर हेरी रहन्छु, तिम्रो पत्र है पढछु घरी
तिम्रो पत्र है पढछु घरी घरी ।
सुनसान रात ….
ला ला ला ला ला ला ला
हाम्रो मिलन को मधुर क्षण आउदै छ नजिक सुस्तरी
कसम छ है तिमी लाई नभयी निराश, माया बस है बाटो हेरी
माया बस है बाटो हेरी ।
सुनसान रात सितल पवन, साथी तिम्रो याद बिदेशी भुमी
बिती रहेछ जिवन यहाँ, माया तिम्रो हो पत्र चुमी
सुनसान रात ….

 

2. Ma mereko chaina aajhai

URL : http://www.youtube.com/watch?v=QwMMn2RZPco

3. Hamro prem ko katha

URL : http://www.youtube.com/watch?v=f5WRFEMtVtI

4. Kehi pal aaba baki cha

URL : http://www.pronepal.com/index.php?action=playwinfile&id=580

5. Tyo premko balidaan

URL : http://www.pronepal.com/index.php?action=playwinfile&id=429

6. Kati bibaas cha tyo jeevan

URL : http://www.pronepal.com/index.php?action=playwinfile&id=433

 7. Jindagi ko ke bharosa

URL : http://www.youtube.com/watch?v=C4faF2L7hMo

8. Purano dunga, pani ko chaala

URL : http://www.youtube.com/watch?v=iA_K8G0f5WE

9. Anautho betha bhayecha mero prem kahani

URL : http://www.youtube.com/watch?v=LTrPf2X8Ofg

10. Timro mero sambandha ko

URL : http://www.youtube.com/watch?v=HbC8PYTTD1c

If you have lyrics of these songs or any other songs by Karna Das,

then please send me or put them as comments.

I will apprecitate that a lot.

Written by prajwalan

October 29, 2008 at 3:01 pm