BASIC MODEL OF STEGANOGRAPHY The basic model of Steganography as shown in Fig.1 which it uses a cover medium (It used to hold secret data inside), the secret message (the secret data that is to be sent), hiding method (It used to hide secret message inside carrier file and produce the result is Stego-file) and an Encryption algorithm (the procedure is to encrypt Stego-file). The result of the process is the Encrypted Stego file which is the encrypted digital image/video that has the secret message hidden inside. Encrypted Stego-file is sent to the receiver via communication channel where receiver will get the secret data out from the Stego-file by applying an extraction technique/algorithm. IV.
Finally, section 7 introduces the conclusions. 2. Basic Structure of Steganography Steganography is not only the art of hiding data but also hiding the fact of transmission of secret data. It hides the secret data in another file in such a way that only the recipient knows the existence of message. In ancient time, the data was protected by hiding it on the back of wax, writing tables, and stomach of rabbits or on the scalp of the slaves.
But its all fake tricks to cheat user and make money, in real GPAA Ransomware is a nasty file encrypting virus. It uses “[16_random_charecters].cerber6” pattern for encryption. Note that GPAA Ransomware is related to another nasty virus named Cerber. How GPAA Ransomware perform?
Barclays’ history suggests, that a company needs both: physical safety as well as cyber. Since hackers could pretend to be IT specialists and access the KVM switch, more control should be arranged on external workers. Also, the strict control of the KVM switch should be introduced: using it only on isolated networks with no sensitive data, isolate all the confidential data, controlling vulnerabilities of video and audio equipment and taking care of the designs. Huge data leak scandal suggests, that Barclays should also take care of all stages of accessing data and authentication. The last decision that could help to avoid risks is technical personnel’ education.
Cryptography is one of widely used technique of secret writing which is the term used for data and information security and protects that information from various attacks. Cryptography is the process of converting a known text or plaintext into a human unreadable format called cipher text by encoding the original message using some encoding technique. Security is concerned with the protection of the network and data transmission over the network. Data Security is the most essential aspect of secure data transmission over the network. But to achieve complete data security is a challenging issue of data communication.
At this point, the team will delete the malware from the breached computers and identify the point of entry of the intruder. The team will mitigate the vulnerabilities that were responsible for the incident. Afterward, the IR team will restore the system to normal operation. The computers that are breached to the point where the worm could not be eradicated will be restarted using uninfected backups. If the incident occurred due to human activity, the team would establish a policy to prevent future occurrence.
The ethical issues that were involved in this case were: the stealing of government property, the disclosure of confidential information, the risk of human lives and
The overall recognition performance is calculated based on word substitution, deletion and insertion errors found during recognition. Number of error counts will be displayed upon recognition [3&4]. Below Sections describes the detailed methodology of a work includes, Feature extraction technique, i.e. MFCC, Pattern Recognition Technique i.e. Building Hidden Markov Models, Decoding method using Viterbi decoder, complete HTK Process, obtained results from the work, conclusion and references used for the
Fig. 2. Types of Malware Detection Techniques Signature Based Malware Detection Technique Signature based detection uses the knowledge of what is considered as malicious to finds out the maliciousness of the program under inspection. Commercial antivirus scanners look for signatures which are typically a sequence of bytes within the malware code to declare that the program scanned is malicious in nature. Basically there are three kinds of malwares: basic, polymorphic, metamorphic malwares.
BIOMETRICS AS A SECURITY PROVIDER Sakshi Sanjay Gavali B.Tech. CTIS, Sandip University, Nashik. firstname.lastname@example.org Pooja Nivrutti Kale B.Tech. CTIS, Sandip University, Nashik email@example.com
Figure 6:synthezised diagram of DMC with Sum of square algm The above synthezised diagram is sucessfully completed by using Xilinix Syntheziser. Sum of Squares (SOSs) check that can be used to detect errors,SOS check is based on the Parseval theorem that states that the SOSs of the inputs to the FFT are equal to the SOSs of the outputs of the FFT except for a scaling factor. DMC is used for multiple bit error Detection and corrections but number of redundancy bit
If the request is valid then it is further checked for other attacks, otherwise it is blocked and stored in the log with the attack type that is found in that request. In HTTP request smuggling attack, a malicious request contains multiple start lines that are not allowed in one HTTP request (violation of RFC 2616). When the hacker tries to assign multiple start lines to one request, it will be detected by the system analyzer and reported as an HTTP request smuggling attack. A buffer overflow is the computing equivalent of trying to pour two liters of water into a one-liter pitcher, some water is going to spill out and make a mess.
It is risky. Online criminals and hackers could easily crack such passwords. However, you can use the first letter of each word in a long phrase to create strong passwords. You can also strengthen such passwords by making some letters uppercase and by swapping out some letters with numbers and symbols 7. Don’t use passwords that are less than eight characters.
Binary state assignment must be made to ensure that the circuit will be free of critical races. Assigning 0 to state a and 1 to state b in the reduced flow table, we obtain the transition table given below, which is, in fact, a map for the excitation variable Q+. The logic diagram of the gated latch is also shown below.
Secret code is applied to the message and hashed and is sent to the receiver 6. Secret code is applied to the message and hashed and this hashed message is encrypted and sent to the receiver. It is used in digital signatures the hash is encrypted using sender’s private key and then encrypted using public key and sent to the receiver and the receiver decrypts the message using the private key. It is used in password storage A good system does not store the plaintext equivalent but store something else which include some randomness .so