Submitted bySumit kumarDept. Of CSE,ITER 0911012077

Guided bySanjaya kumar jenaAssistant Professor,Department of Computer Science and Engineering , ITER

Cloud Computing – An Introduction Attributes Of The Cloud Cloud Computing Security Challenges Proposed Security Solution Elliptic Curve Cryptography How Elliptic Curve Cryptography can help? Advantages and Disadvantages Conclusion References

Courtesy: http://www.winky.net/

Cloud Computing: Cloud Computing: ChallengesChallenges

Encryption conceptDecryption concept

Courtesy : www.google.com

Encryption Authentication and access control Intrusion Detection and Prevention

Elliptic curve is an algebraic curve Equation of elliptic curve

Courtesy : www. wikipedia.org

Consider elliptic curve E: y2 = x3 - x + 1 Let p1(x1,y1), p2(x2,y3), p3(x3,y3) be the three roots of the cubic equation. so these three points are lying on the curve. But after addition of p1 and p2,it becomes p3(say) such as P3 = P1 + P2 .

So initially p1(x1,y1) and p2(x2,y2)

But finally p3({x1+x2},{y1+y2}).

let (x1+x2=x3)

& (y1+y2=y3)

so, p3(x3,y3).

Encryption algorithm: suppose sender wants to send the message to the receiver-i) Sender [M] Receiver ii) Sender Public Key Encrypted Message [M’]iii) [M’] Receiver

Decryption algorithm: when the receiver receives the message:i) Receiver [M’] ii) [M’] Decrypted Message [M]

More cheaper Reduce the company expenditure Increase the current storage or spacescomplete data is stored in the cloud it is very

easy to take backup and restore of files

data can be accessed by anyone and at anytime

The other main problem in the cloud computing is Security

the possibility of being attacked or harmed even after updating your virus database

Cloud Computing is something that is going to change how we see computers. It will bring down operating costs leading to wide array of new opportunities. But it will not be able to achieve its rightful position until the issues such as data security and privacy have been resolved.

[1] Veerraju Gampala, Srilakshmi Inuganti, Satish Muppidi “Data Security in Cloud Computing with Elliptic Curve Cryptography”

[2] Deyan Chen,Hong Zhao “Data Security and Privacy Protection Issues in Cloud Computing”

[3] http://en.wikipedia.org/wiki/Cloud_computing

[4] http://www.cloudcomputingchina.cn/Article/luilan/200909/306.html

[5] Google, “Google app Engine,” http://code.google.com/appengine/

[6] http://cloudsecurity.trendmicro.com/

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