Abstract
A method is described for synthesizing asynchronouscircuits based on the Handshake Circuit paradigm but employinga data-driven, rather than a control-driven, style. This approachattempts to combine the performance advantages of data-drivenasynchronous design styles with the handshake circuit style of constructionused in existing syntax-directed synthesis. The methodis demonstrated on a significant design—a 32-bit microprocessor.This example shows that the data-driven circuit style providesbetter performance than control-drive ....etc

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Inside USB
B.Tech Seminar report
by
Appu Sajeev
Department of Computer Science And Engineering
Government Engineering College, Thrissur
December 2010



Abstract
USB is an interfacing protocol to establish communication between various devices and
a host controller. It was developed in the year 1996 and has replaced several interfaces
like serial port, parallel port and has become an interfacing standard today. The paper
covers the internals of USB mainly the ....etc

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EVOLUTION OF PEER TO PEER DOWNLOADING
PEER TO PEER NETWORK
What is a peer to peer network?
A peer to peer network is a network that relies on the computing power & bandwidth of the participants on the network.
P2p networks are typically used for connecting nodes via largely ad_hoc connections.
Such networks are useful for sharing content files containing audio,video ,data & anything in digital format.



File Download / TransferTraditional Client-Server Downloading

Peer to peer file sharing


....etc

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ABSTRACT
Internet enabled wireless devices continue to proliferate and are expected to surpass traditional Internet clients in the near future. This has opened up exciting new opportunities in the mobile e-commerce market. However, data security and privacy remain major concerns in the current generation of wireless web offerings. All such offerings today use a security architecture that lacks end-to-end security. This unfortunate choice is driven by perceived inadequacies of standard Internet security protocols like SSL ....etc

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TLS (Transport Layer Security)
Presented By
Angshuman Karmakar
Roll “ 000610501011
B.C.S.E “ IV


History
¢ TLS and SSL encrypt the segments of network connections at the Transport Layer end-to-end.
¢ 1994: Netscape designed and built SSLv2
“ and told consumers that they needed SSL; credit card numbers were too sensitive to let go unencrypted
¢ Only Netscape Commerce Server supported SSL
“ It relied on X.509 certificates issued by RSADSI
¢ Microsoft had P ....etc

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Low TTL means minimizing the usage of the network resources.
High TTL value means maximizing the QoS provided to the users of the network.
The optimal TTL value would then (among others) depend on the network topology and traffic characteristics for a particular location and a particular time of the day.


Any other response to the original connection string -taken as a communication-rejection by the initiator servent.
After a connection is established- Two servents
communicate by exchanging Gnutella protocol descriptors.

Gnutell ....etc

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ABSTRACT



Abstract—Peer-to-peer (P2P) online communities are commonly perceived as an environment offering both opportunities and threats.One way to minimize threats in such communities is to use community-based reputations to help estimate the trustworthiness of peers.

This paper presents PeerTrust—a reputation-based trust supporting framework, which includes a coherent adaptive trust model for quantifying and comparing the trustworthiness of peers based on a transaction-based feedback system, and a decentralized implementation of ....etc

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SSL is a protocol using different cryptographic algorithms to implement security-using authentication with certificates, session key exchange algorithms, encryption and integrity check. It is a common protocol, often used to ensure that the communication between WWW-server and WWW-client is safe and encrypted.

Digital certificates encrypt data using Secure Sockets layer (SSL) technology, the industry-standard method for protecting web communications developed by Netscape Communications Corporation. The SSL security protocol pro ....etc

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Presented by:Vijaya Krishnan.S
Security Issues of P2P Networks

Abstract
P2P applications introduce a whole new series of security issues, security within the virtual P2P networks themselves and security with respect to the environments they ride on. P2P technology can undermine network security and can leave computing devices open to threats ranging from violations of intellectual property laws, virus ....etc

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Search and Replication in Unstructured Peer-to-Peer Networks
Disclaimer
• Results, statements, opinions in this talk do not represent Cisco in anyway
• This talk is about technical problems in networking, and does not discuss moral, legal and other issues related to P2P networks and their applications
Example systems:
– Napster, Gnutella;
– Freenet, FreeHaven, MajoNation, Alpine, ...
– JXTA, Ohaha, …
– Chord, CAN, “Past”, “Tapestry”, Oceanstore
Architecture Comparisons
� ....etc

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ABSTRACT
IP spoofing is a method of attacking a network in order to gain unauthorized access. The attack is based on the fact that Internet communication between distant computers is routinely handled by routers which find the best route by examining the destination address, but generally ignore the origination address. The origination address is only used by the destination machine when it responds back to the source.
In a spoofing attack, the intruder sends messages to a computer indicating that the mess ....etc

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