Steganography Techniques Using Cryptography-A Review Paper
Himanshi Sharma
MTech(CSE) IInd Year
E-Max College of Engineering and Technology
Ambala, Haryana, India
Email Id: cute.himanshi29@gmail.com
Abstract: The two important aspects of security that deal with transmitting information or data over some medium like internet are cryptography and steganography. Cryptography results in converting plain text into cipher text which is in unreadable or in non-explanatory form, difficult to be guessed by eavesdropper, Steganography on the other hand hides the secret data into carrier medium in such a way that its detection is prevented. Steganography is not a replacement of cryptography but can supplement it to produce good results. It is observed
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INTRODUCTION
The two important techniques for providing security are cryptography and steganography. Both are well known and widely used methods in information security. One of the reasons why attackers become successful in intrusion is that they have an opportunity to read and comprehend most of the information from the system. Intruders may reveal the information to others, misuse or modify the information, misrepresent them to an individual/ organisation or use them to plan even some more severe attacks. One of the solutions to this problem is through the use of cryptography and steganography.
Steganography is the art of hiding information in digital media through the techniques of embedding hidden messages in such a way that no one except the sender and the intended receiver can detect the existence of messages. Cryptography is the art of transmitting the data safely over the Internet by applying some cryptographic algorithms so that it will be difficult for an attacker to attack or steal some confidential or private
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Steganography usually not designed to replace the cryptography but it helps in creating more secure communication after combining with cryptography by using best of both techniques. Thus it is proved that using cryptography techniques which use compression, hash function, automatic key generation, distortion process etc., the data becomes more secure and robust as compared to steganography technique alone. Thus the encryption of secret message and then hiding results in more secured
Ever since data is in encrypted format, its probably difficult for attacker to decode it ; but this will ultimately lead to data owner to suffer in one or the other way. 6. In order to solve this problem metadata is stored for each server content into proxy server. 7. Suppose size of data stored in server 1 is 2GB and similarly size of data stored in server2 is 2 GB.
His “code contained a quirk that both reflects its time and offers up clues to a mystery”. Anyone outside of the Culper Ring could not interpret what the code could mean, which allowed the spies’ names to stay protected and secured. With the invisible ink and Tallmadge’s code, the Culper Ring and their observations stayed
Lowry Williams IS 4670 Cybercrime Forensics Unit 5 Assignment 1 Create data recovery plan Data the count may order or give you authorize to seizure a computer so that you may be able to extracted things from the computer’s hard drives. You need to do it in many difference phases you want to insure that the integrity of the computer evidence. You should copies all the files onto a write once only CD- read only memory disks. You may want to “ clone” your computer hard drive, you would do this, because you would not want to mess up the hard drive that was on your computer. This also means that you would be copying everything this will including the operating software.
How we can protect the data in transit in a variety of applications such as data transfer on the Internet, and on cellular phone networks. a) Encryption b) Data mining c) Internet Security d) Decryption Answer:a 2. Which key is used to access the encrypted message? a) Encryption key b) Decryption key c) Primary key d) Foreign key Answer:b 3.
From the very beginning, Washington stressed the importance of administrative secrecy and protection regarding the spy ring and within the spy ring itself. After Tallmadge recruited Robert Townsend, Washington was so concerned about security, he, “made it clear that he did not wish to know the person’s true identity or that of others involved in the ring’s activities.” The principle agents each wrote in invisible ink that require another chemical agent to reveal the writing. Due to the security risks presented by the rarity and costliness of the invisible ink or stain, Tallmadge created both fake names for most of the agents and a number code. The code Tallmadge used as a base for his code was a code which was itself based upon a priest’s cipher created in 1518 called the Ave Maria cipher.
According to the article “Spy Letters of the American Revolution” and “Spy Techniques of the Revolutionary War” invisible ink contained ferrous sulfate and water. The code would be in the lines of a normal letter and the code was revealed by adding heat to the paper. Ciphers are another way of communicating in the spy world, both the British and Americans used these techniques. Ciphers were coded letters that
“Women’s clothing made it easy to hide information… The many yards of fabric were perfect for hiding messages and papers, small packages and medical supplies easily attached to the frame of the hoop skirts…” (Harper). Again, because of the understanding of men not touching women, they easily transported information that way because no one thought to search women. Another trick used by Elizabeth Van Lew, and other spies, was using “an invisible ink to write their messages between the lines of “ordinary” letters” (Harper).
CO4507 Digital Forensic Investigation Introduction Nowadays digital devices are everywhere in our life’s helping peoples in many sectors and providing possibilities to them. By pronounce the term “digital devices” the majority of the peoples thinking the computers, smart phones, tablets and the cloud applications. Now the digital devices are important not only in our work environment, or for entertainment and educational reasons, but are important because we can use them as digital evidence. Any kind of technology that processes information can be used in a criminal way vise versa can be used as digital evidence in the court.
" The group developed the enigmatic code that would confound Japanese military cryptologists and play a major
With the introduction of new technology in recent years, the government can discreetly capture evidence from electronic files,
Q5) (a) Password policy: SQL Server verification server login and secret key approach can apply. Login and secret word are not the same regarding security is extremely viable. SQL new businesses • SQL server administration studio gives three choices for the above logins • Implement secret key strategy • Keeping in mind the end goal to keep up the security of information, we can change the secret key or are made, when the need to put a touch befuddling. • at the point when the approach is empowered all the prerequisite ought to be meet • Eight characters ought to be in the secret word •
The main focus of this project was to provide a means of education to digital forensic investigations to develop better and efficient tools to overcome the anti forensic packages. The future of this project could be extended to implement many other anti forensic techniques and features like encryption, steganography and even targeting computer forensic tool vulnerabilities. It would be a disaster if all these techniques are combined and implemented. The future developments could also make use of other digital forensic tools like Prodiscover, Encase and also new computer forensic tools being developed currently in the industry. Defeating cross view rootkit detection tools in a generic
YSCP Academic Honesty Policy Purpose/Philosophy Academic honesty and personal integrity are fundamental components of a student’s education and character development. Young Scholars Central PA Charter School is committed to advancing the pursuit of intellectual excellence and to sustaining the highest standards and expectations for academic integrity among all students and will ensure that all YSCP students are aware of what this entails. While It is expected that all students enrolled in the school will submit work of their own that is appropriately referenced, it is necessary to give guidelines as to what this means and what the consequences will be.
The movie Hidden Figures by Theodore Melfi is talking about the civil rights and equality of men and women in 1970 's to 1990’s. The Mise-en-scene means "setting up a scene. " There are six elements that make up mise-en-scene acting, costume and make-up, setting, lighting, composition or space and lastly. In Hidden Figures, the mise-en-scene helps audiences to become closer to the story and have the same feeling as those main characters. The director uses many different kind of shout angles to show the unbalanced between black people and white people at that time and the color and lighting also help the director can present the emotions that the characters are facing different kind of events or people.
2.0 LITERATURE REVIEW This chapter presents a review of literature that is related to computer and digital forensics. It begins by taking a look at the meaning of computer forensics and the different areas within this field. It also explores the forensic science process and the challenges facing practitioners. The chapter then discusses social networking and its relationship with cybercrime and the role of forensics in keeping user information private and secure. It concludes by reviewing the meaning and significance of metadata information in resolving digital or cybercrime activities.