APPLAUS: A Privacy-Preserving Location Proof Updating System for Location-based Services
Abstract
Today’s location-sensitive service relies on user’smobile device to determine its location and send the locationto the application. This approach allows the user to cheatby having his device transmit a fake location, which mightenable the user to access a restricted resource erroneouslyor provide bogus alibis. To address this issue, we propose APrivacy-Preserving LocAtion proof Updating System (APPLAUS)in which co-located Bluetooth en ....etc

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Zero Knowledge Protocols and Proof Systems

Zero-knowledge protocols allow identification, key exchange and other basic cryptographic operations to be implemented without leaking any secret information during the conversation and with smaller computational requirements than using comparable public key protocols. Thus Zero-knowledge protocols seem very attractive especially in smart card and embedded applications. There is quite a lot written about zero-knowledge protocols in theory, but not so much practical down-to-earth material is availabl ....etc

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Submitted by:
Azra khanum,


APPLAUS
Introduction
Privacy-Preserving Location proof Updating System (APPLAUS)is a system in which co-located Bluetooth enabled mobile devices mutually generate location proofs, and update to a location proof server. Periodically changed pseudonyms are used by the mobile devices to protect source location privacy from each other, and from the untrusted location proof server. We also develop user-centric location privacy model in which individual users evaluate their location p ....etc

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ABSTRACT:-
Nanotechnology is the study and development of particles and even machines on a cellular scale. A single particle of 10-9 has 109 applications. Nanotechnology also improves the lives and safety of persons in every area of endeavor this can be achieved by developing a nanoscale carbon fiber that could revolutionize bullet-proof vests.
In 1991, when the carbon nanotubes have just come out, had been touted as “the next generation of great invention.” Carbon nanot ....etc

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A proof of the Heine-Borel Theorem
Theorem (Heine-Borel Theorem). A subset S of Ris compact if and only if S is closed and bounded.
Proof. First we suppose that S is compact. To see that S is bounded is fairly simple: Let In = (−n, n).
Then
1
[
n=1
In = R.
Therefore S is covered by the collection of {In}. Hence, since S is compact, finitely many will suffice.
S  (In1 [ · · · [ Ink ) = Im,
where m = max{n1, . . . , nk}. Therefore |x|  m for all x 2 S, and S is bounded.
Now we will show that S is closed. Suppose not. The ....etc

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Now a days touch screen are widely used for many applications like touch screen based monitor, touch screen based mobile etc, In present day booking a person who wishes to book a railway ticket has to go to the booking centre and reserve the tickets .In reservation counter a person is appointed to give the tickets and reserve the seats. Many times there will be queue near reservation counter and the costumers have to wait for a long time. This consumes lot of time of the costumer. To overcome this drawback we have come up with an idea to develo ....etc

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