Cryptography

learning ethical hacking. I would benefit from being able to understand how malware works, but also how to patch a system to prevent any security exploits. The applied mathematics background is useful for having a more in-depth comprehension of how cryptography works and statistics which is advantageous…

I felt a little awkward playing this gig. There I was, a white teenager, playing bass with a band of professional black jazz musicians. Needless to say, I stood out a bit. Afterward, the drummer approached me, curious to know who my teacher was because he was impressed with my ability. The compliment surprised me, but I shocked him more so by informing him that I was completely self-taught! Throughout my life, self-learning has played an important role in a variety of areas. I was nine when…

In this case which involves an active warden, however, the message needs to look innocuous and hence cryptography fails. Steganography comes to the price¬owners, rescue. The prisoners’, with a strong intention of planning an escape, have already exchanged a code word before they were captured. They use this codeword to secretly exchange messages in the process…

SYSTEM ANALYSIS, DESIGN & METHODOLOGY 3.1 INTRODUCTION Crystography is basically the adoption of two information hiding techniques and fusing them together in order to enhance data security. This concept is aim at intensifying security in instances in which data confidentiality is of utmost importance. This technique of data hiding enhances security since it involves the combination of two strong techniques. It would not only encrypt the data but also hide them in an unattractive body. The…

repository or central database and trusted third party Central authority(CA) are used to revoke, issue and store the keys. There is always a risk that these centralized infrastructure can be violated. Hence, Blochcain can be use to to reduce the risks of storing PKI on centralized infrastructure. Here the Data(Keys) will be distributed across the blochchain network[3] In the 2nd section we will go through the introduction of blockchain, In the 3rd Section, we will see how blockchain protects…

Digital Signature are used in network security are as follows: Application of digital signature is on the upward push because of the reality of felony and technological developments, alongside with authorities initiated solid market demand for secured transactions on the Internet. Digital signature capacities contain encoding messages such that totally authentic parties are in a part to decrypt the message. Two separate however interrelated 'keys' perceived as public key and Privet key elevate…

Certification Authority(CA):A certification Authority which is having private and public key pairs and trusted by sensors.The role of the CA in this process is to guarantee that the individual granted the unique certificate is in the fact who he or she claims to be. External Agent(EA):External Agent is an entity who tries communicate with the WSN.External agent agent also has a private and public key pair and the public key must be certified the CA. Base station(BS):A Base station is a signal…

The Enigma of the 20th Century “Send the U-Boat to (51° 15' 43", -6° 45' 4"); attack at 15:00.” This could have been a message that was ciphered using a secret code during times of war. Cryptography, the study of securely coding messages, has been around for thousands of years (The Enigma Machine Explained). It started out with pencil-and-paper codes, made of substituting letters for each other in the alphabet. Then, there were more geometric codes, relying on using grids to write out messages…

How do we prevent computer crime Computer crime is a common thing in todays society. It is something that should be in every persons mind as they are surfing the web and typing in personal information. The first thing that should be done to prevent computer crime is have a firewall on their computer. A firewall is essentially a barrier for your computer that keeps information from going out into the network without permission [1]. Passwords are another important concept to consider when…

protocol. Ans: 1. Initialization Vector (IV) is too small and is plain text: IV is the 24 bit field sent as plain text portion of the message. It used by RC4 algorithm to initialize the algorithm, which is comparatively small field in terms of cryptography. 2. IV makes the key stream vulnerable: The 802.11 does not specify how the IVs are set or changed, so some Wireless adapter might generate same IV sequence which is hazardous as attacker can take advantage of this thus making WEP vulnerable…