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Enhanced Data Security

Model for Cloud

Computing

Presented By

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ABSTRACT

In cloud computing, both data and software are fully not

contained on the user's computer; Data Security concerns arising

because both user data and program are residing in Provider

Premises.

Every cloud provider solves this problem by encrypting the data

by using encryption algorithms. This paper investigates the basic

problem of cloud computing data security.

We present the data security model of cloud computing based on

the study of the cloud architecture. We improve data securitymodel for cloud computing.

In this paper we are presenting Three-layered security

mechanism.

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EXISTING SYSTEMS

In cloud computing, both data and software are fully not

contained on the user's computer; Data Security concerns arising

because both user data and program are residing in Provider

Premises.

Clouds typically have single security architecture but have many

customers with different demands. Every cloud provider solves

this problem by encrypting the data by using encryption

algorithms

DISADVANTAGES OF EXISTING SYSTEM:

The management of the data and services may not be fully

trustworthy

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PROPOSED SYSTEM

This paper enhances data security model for cloud computing.

We propose a new data .security model based on studying of

cloud computing architecture. We Implement software to select

the suitable and the highest security encryption algorithm.

ADVANTAGES OF PROPOSED SYSTEM: Highly Secure

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MODULES

1. Three-layer system Construction module

2. Storage data Module

3. Transmission data Module

4. Processing data Module

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1. Three-layer system Construction module:

The model used three-layer system structure, in which

each floor performs its own duty to ensure that the data securityof cloud layers. The first layer: responsible for user

authentication, almost this is two factor authentication, but free

cloud providers use one factor as examples eyeos, cloudo, and

freezoha. The second layer: responsible for user's dataencryption, and protect the privacy of users through a certain

way by using one symmetric encryption algorithms. Also allow

protection from user. The third layer: The user data for fast

recovery this depends on the speed of decryption.

.

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We make improvement to data security model in cloud computing.We implement software to the cloud provider. This software is

implemented with two factor authentication. This software compares

between eight modem encryption algorithms. This comparison based on

Statistical Tests to get the most security algorithms. This software gets thefaster and the highest security algorithm based on cloud infrastructure. So

we proposed to cloud provider the suitable, more security encryption

algorithm to its platform.

2.Storage data Module

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3.Transmission data Module

In this module, Auditor views the all user data and

verifying data and also changed data. Auditor directly views

all user data without key. Admin provided the permission to

Auditor. After auditing data, store to the cloud.4. User Module

User store large amount of data to clouds and access data

using secure key. Secure key provided admin after encrypting

data. Encrypt the data using TPM. User store data afterauditor, view and verifying data and also changed data. User

again views data at that time admin provided the message to

user only changes data.

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HARDWARE REQUIREMENTSPROCESSOR : PENTIUM IV 2.6 GHz

RAM : 512 MB DD RAM

HARD DISK : 20 GB

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SOFTWARE REQUIREMENTSTechnology : Jsp,servlets

Tools Used : IDE(Eclipse)

Operating System : WindowsXP

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REFERENCE

1.C. Dwork, The Differential Privacy Frontier Extended

Abstract, Proc. 6th Theory of Cryptography Conf. (TCC 09),

LNCS 5444, Springer, 2009, pp. 496-502.

2. C. Gentry, Fully Homomorphic Encryption Using

Ideal

Lattices, Proc. 41st Ann. ACM Symp. Theory Computing

(STOC 09), ACM, 2009, pp. 169-178.

3. E. Naone, The Slow-Motion Internet, Technology Rev.,

Mar./Apr. 2011; www.technologyreview.com/files/54902/

GoogleSpeed_charts.pdf