INFORMATION SECURITY THROUGH IMAGE STEGANOGRAPHY USING LEAST SIGNIFICANT BIT ALGORITHM By NANI KODURI

... images are LSB (Least Significant Bit ) Algorithm JSteg Algorithm F5 Algorithm 2.3.1 LSB algorithm LSB (Least Significant Bit) substitution is the process of adjusting the least significant bit ... image It is a simple approach for embedding message into the image The Least Significant Bit insertion varies according to number of bits in an image For an bit image, the least significant bit ... of Least Significant Bit (LSB) algorithm for embedding the data into the bit map image (.bmp) which is implemented through the Microsoft NET framework 0919879 Nani Koduri Page MSc Information Security...

ẨN GIẤU THÔNG TIN BẰNG PHƯƠNG PHÁP LSB (LEAST SIGNIFICANT BIT) CẢI TIẾN

... là LSB cải tiến Lê Quang Hiếu – Lớp 07B3 – Khoa CNTT Trang 13 ẨN GIẤU THÔNG TIN BẰNG PHƯƠNG PHÁP LSB CẢI TIẾN Ẩn giấu thông tin sử dụng LSB là phương pháp giấu thông tin vào ... chương trình ẩn giấu thông tin bằng phương pháp LSB cải tiến sau: CHƯƠNG TRÌNH ẨN GIẤU THÔNG TIN BẰNG PHƯƠNG PHÁP LSB CẢI TIẾN 1.0 TÍNH TOÁN KHOÁ 2.0 NHÚNG THÔNG TIN MẬT 3.0 ... – Khoa CNTT Trang 40 ẨN GIẤU THÔNG TIN BẰNG PHƯƠNG PHÁP LSB CẢI TIẾN Lê Quang Hiếu – Lớp 07B3 – Khoa CNTT Trang 41 ẨN GIẤU THÔNG TIN BẰNG PHƯƠNG PHÁP LSB CẢI TIẾN Lê Quang Hiếu...

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Báo cáo khoa học: "Automatic Image Annotation Using Auxiliary Text Information" potx

... between words and image features and uses them to predict annotations for new images Duygulu et al (2002) improve on this model by treating image regions and keywords as a bi -text and using the EM ... is mostly on image processing and good feature selection (e.g., colour, texture, contours) rather than the annotation task itself Recently, much progress has been made on the image annotation task ... bottleneck associated with automatic image annotation by taking advantage of resources where images and their annotations co-occur naturally News articles associated with images and their captions spring...

Information Security Fundamentals

... for information security • Define information security • Explain the importance of information security Objectives • List and define information security terminology • Describe the CompTIA Security+ ... Challenges for Information Security (continued) Identifying the Challenges for Information Security (continued) Defining Information Security • Information security: – Tasks of guarding digital information, ... information itself Defining Information Security (continued) 10 Defining Information Security (continued) • Three characteristics of information must be protected by information security: – Confidentiality...

Information Security: The Big Picture – Part I

... 18 Handling Risk • Eliminate risk • Minimize risk • Accept risk • Transfer risk Information Security: The Big Picture - SANS GIAC © 2000 19 There are several ways of dealing with risk First, you ... good intentions Extremely effective in many situations Common ploys – – – – The The The The Dumb User VIP Lost Puppy Prize • Protection: know who you are dealing with Information Security: The Big ... else? Information Security: The Big Picture - SANS GIAC © 2000 Information security practitioners often wrestle with the problem of determining how much security is considered “enough” for a particular...

SANS GIAC Information Security KickStart Glossary of Terms

... of sensitive information may have occurred SANS GIAC Information Security KickStart ©2000 Page of 13 Term Computer Abuse Computer Fraud Computer Security Computer Security Incident Computer Security ... discretion of a system operator or information owner A Denial of Service attack that uses multiple machine to amplify the effect of the attack See Demilitarized Zone SANS GIAC Information Security KickStart ... block of data sent over the network transmitting the identities of the sending and receiving stations, errorcontrol information, and a message SANS GIAC Information Security KickStart ©2000 Page of...

Security through Obscurity

... 154 Security through Obscurity ing security measures are But security through obscurity is not pointless, even if security bulletins connote otherwise The ... average hacker Security through obscurity need not be infallible, just good enough to thwart the vast majority of threats So when should you apply the technique? Security through obscurity is especially ... outset, security through obscurity should not be your ﬁrst and last line of defense against intrusion and the compromise of your server and data Instead, it should be used to enhance other security...

NETWORK INFORMATION SECURITY VIETNAM

... Target box, click Copy NETWORK INFORMATION SECURITY VIETNAM Sau Tại Add a Program dialog box, click Browse NETWORK INFORMATION SECURITY VIETNAM NETWORK INFORMATION SECURITY VIETNAM Trong Browse ... File name box, sau click Paste NETWORK INFORMATION SECURITY VIETNAM Click Open NETWORK INFORMATION SECURITY VIETNAM Cuối click OK NETWORK INFORMATION SECURITY VIETNAM Và Windows Messenger đưa ... http://eskapism.se/software/bin/windows_xp_firewall_log_viewer_0_ 2.zip Network Information Security Vietnam www.Nis.com.vn Securitytraining@Nis.com.vn NETWORK INFORMATION SECURITY VIETNAM ...

Information Security: The Big Picture – Part II

... Hdr Data Information Security: The Big Picture - SANS GIAC © 2000 29 The data packet has two basic parts, the header and the payload The header is the part of the packet that contains information ... they would contact the operator at the central office and tell them the name of the person they wanted to talk to The operator would then connect the caller’s plug to the plug of the person being ... of the cans, the sound can be heard through the other can The can you talk into is the transmitter, the can you listen from is the receiver, and the string is the medium How does it work? The...

Information Security: The Big Picture – Part III

... give this information to the people on the first floor The people in the first floor actually go to the store, buy all the ingredients, and bring them back to the apartment building Once the ingredients ... own information to it, then sends it to the next layer down the stack Once the packet reaches the bottom of the stack, it travels along the network wire to the remote host, then travels up the ... purchased, the process goes in reverse The first floor gives the raw ingredients to the second floor The second floor checks that all the ingredients are there and then hands them off to the third...

Information Security: The Big Picture – Part IV

... multiple parts • Fragmented parts are reassembled at destination • Attacks – Tiny fragment – Overlapping fragments – Teardrop Information Security: The Big Picture - SANS GIAC © 2000 11 In the IP ... to all the other hosts on that network, which then act as the agents for the attack Being good little agents, they want to reply to the request However the only information they have is the spoofed ... normal IP transmission – – – – – Access control Connectionless integrity Data origin authentication Protection against replays Confidentiality Information Security: The Big Picture - SANS GIAC ©...

Information Security: The Big Picture – Part V

... allows the browser to send some information to the server, usually information from a form the user fills out POST transactions send the information from the browser to the server The server will then ... a server somewhere on the network, they did the work on the server, you got the results, and you were done Then with the advent of the web, we started seeing the use of CGI programs to the work ... service over the Internet Another problem is the risk of vandalism If someone wants to vandalize my corner store they have to show up in person with their spray cans or their explosives and their...

Better Security through Access-List Management

... Better Security through Access-List Management Raj Tolani, Global Knowledge Networking Instructor Introduction Security is becoming more and more common ... extended type of access-list? Standard and Extended access-lists allow different type of control Standard Access-Lists vs Extended Access-Lists Standard Access-List: With standard access-lists you ... 100 extended access-lists on any given router If you really wanted more than 99 standard access-lists or more than 100 extended access-list, you can use Named access-list With named access-list, ...

Information Security: The Big Picture – Part VI

... Certificates have many uses – Encryption – Authentication – Verification Information Security: The Big Picture - SANS GIAC © 2000 Most of us have either a drivers license or a passport These are official ... As they are discovered, the anti-virus vendors develop methods for detecting and removing them They then put these new methods into updates to their software and distribute them to users of their ... department logs into the computer and is authenticated, their ID will be tagged as belonging to the research department If they try to access the accounting files, the computer will compare the...

Tài liệu Information Security: The Big Picture – Part V pdf

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