A Log-based Approach to Make Digital Forensics Easier on Cloud Computing

A Log-based Approach to Make Digital Forensics Easier on Cloud Computing

Abstract:

                    Cloud computing is getting more and more attention from the information and communication technologies industry recently. Almost all the leading companies of the information area show their interesting and efforts on cloud computing and release services about cloud computing in succession. But if want to make it go further, we should pay more effort on security issues. Especially, the Internet environment now has become more and more unsecure. With the popularization of computers and intelligent devices, the number of crime on them has increased rapidly in last decades, and will be quicker on the cloud computing environment in future. No wall is wall in the world. We should enhance the cloud computing not only at the aspect of precaution, but also at the aspect of dealing with the security events to defend it from crime activities. In this paper, I propose a approach which using logs model to building a forensic-friendly system. Using this model we can quickly gather information from cloud computing for some kinds of forensic purpose. And this will decrease the complexity of those kinds of forensics.

                    

EXISTING SYSTEM:

                                         The identification of evidence in the cloud computing environment can be very complex. To different deployment model, which knows as public cloud, private cloud and hybrid, has deep affection on forensics procedural. If the evidence resides within a public cloud, it will be much more difficult to identify. There are different computer forensic challenges related to the different services models, PaaS, IaaS and SaaS. These models present subtly different challenges to the forensic investigator. While trying to process the forensics procedural in cloud, we will meet grate obstruction at the very beginning. We cannot seize the hardware containing or processing the target applications from the cloud, as they can be everywhere in the world or even no real hardware such as Virtual Machine. By the use of Existing System, the nature of dynamic scaling up and down makes the possibility of losing information higher.

DISADVANTAGE:

                                                      No Security, attempt to block the account, hacking  password etc.

PROPOSED SYSTEM:

                                       Here we should keep another log locally and synchronously, so we can use it to check the activities on cloud while without the help of the CSPs. The content that would be recorded in the log files (the log files can be files or database) should be decided by the CSPs, but not the agent itself. That is to say the log files should be operated by a module created by the CSP. This is to make sure that the log files stored in local and in cloud are comparable. The local log module will use that information on the log record locally. Then we compare the local log with the log files that are maintained in the cloud, we can easily identify the fake users.

ADVANTAGE:

                             In this proposal, if anyone made an attempt to hack the password, the account will be blocked. Only account holder can renew it. We are maintaining log files, from that we got users registration time, file download time etc.

PROBLEM STATEMENT:

                                                    Existing system does not guarantee the security, there are lot of disadvantages are there. Here we are going to overcome that.

SCOPE: 

               We are going to develop A Log-based Approach to Make Digital Forensics Easier.

                             

      

Modules :

1. User Registration
2. Admin Login
3. Account Blocking
4. Account Renewal
5. TTP (TRUSTED THIRD PARTY) LOGIN
6. CSP(CLOUD SERVICE PROVIDER) LOGIN
7. LOG FILES

            

                                                                Modules Description

User  Registration:

                                                In this module if a user wants to login into the database ,he/she should register their details first.These details are maintained in a Database.

Admin Login:

                                    In this module admin has to enter username and password,if its matches then Then he has to upload the file in a file database. The file which are stored in a database are in an encrypted form. Authorized users can only decode it.

Account Blocking:

                          If an user have entered by giving fake username/password more than three times then his/her account will be blocked.

Account Renewal:

                          If someone’s account was blocked Then he/she has to answer some security questions for their renewal, then only their account is in active state. This process could be done by admin.  

TTP (TRUSTED THIRD PARTY) LOGIN:

                                                                                                                               In this module TTP has monitors the data owners file by verifying the data owner’s file and stored the file in a database .Also ttp checks the CSP(CLOUD SERVICE PROVIDER),and find out whether the  csp is authorized one or not.

CSP(CLOUD SERVICE PROVIDER) LOGIN:

                                                          In this module CSP has to enter username and password,Then only he can store the file in his cloud server.

LOG FILES:

                                                          In this module both CSP and MANAGEMENT (ADMIN) have maintain their own log files that indicates user registration, user logging and when did the user download the files etc. Admin can view its log file and CSP as well, Also admin can compares the log files and detect whether the user is registered user or not.

System Configuration:-

H/W System Configuration:-

        Processor               -    Pentium –III

Speed                                -    1.1 GHz

RAM                                 -    256 MB (min)

Hard Disk                          -   20 GB

Floppy Drive                     -    1.44 MB

Key Board                         -    Standard Windows Keyboard

Mouse                                -    Two or Three Button Mouse

Monitor                              -    SVGA

 

 S/W System Configuration:-

v   Operating System            :Windows95/98/2000/XP

v   Application  Server          :   Tomcat5.0/6.X                                                  

v   Front End                          :   HTML, Java, Jsp

v    Scripts                                :   JavaScript.

v   Server side Script             :   Java Server Pages.

v   Database                            :   My sql

v   Database Connectivity      :   JDBC.

Literature survey:

                                              Literature survey is the most important step in software development process. Before developing the tool it is necessary to determine the time factor, economy n company strength. Once these things r satisfied, ten next steps are to determine which operating system and language can be used for developing the tool. Once the programmers start building the tool the programmers need lot of external support. This support can be obtained from senior programmers, from book or from websites. Before building the system the above consideration are taken into account for developing the proposed system.

Conclusion:

                      There is no doubt that cloud computing will be the most popular operation mode for business. Whilst there will be more and more crimes against it too. For all the participator of cloud computing, they should prepare for that change. In this paper we have proposed a log-based model for. The log-based model can help to reduce the complexity of forensic for non repudiation of behaviors on cloud. However, it is totally no enough for the other kinds of digital forensics. What makes matters worse is that, till now, there are still no guidelines or standards for the cloud security. Most of times, we modified the guidelines of traditional digital forensics to suit for cloud computing environment independently.

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