Morse Code is a communication system using dots and dashes. The advantage of Morse code is it can be transmitted by light, sound or in writing. Cadets at military academies across the world were taught Morse code. Morse code works whether flashing a spotlight or blinking your eyes – or even tapping on a smartphone […]
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IDSes use several different techniques to detect malicious network activity. Anti-virus Software uses IDS to discover, flag, and remove. Types of IDS: Signature based attacks are good at identifying known attacks based on signatures in the databases, but they fail in identifying new zero day attacks with new patterns. Protocol based detection systems are good
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The job of an antivirus software is to find out if an application is a virus or not. So, an antivirus software must do two things very well. Job 1: Protecting itself from the antivirus application In order to protect itself from an antivirus application, the antivirus software has a self-protection engine to protect its
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An SSL certificate is a file installed on the server of the website. It is simply a data file containing the public key that is used to encrypt the data being sent to that machine. SSL certificates are issued by certificate authorities, and therefore, browsers consider them trustworthy. We learnt about the TCP 3 Way
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Previously, we have seen the different types of ciphers used in communications. These ciphers are used heavily in encryption and hashing. For example, the AES and DES ciphers use many rotations and transpositions. Similarly, we will see the SHA256 hash algorithm in detail using many ciphers that we learnt before. The Secure Hashing Algorithm (SHA)
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A cipher enables a secret way of writing a message to hide or disguise the actual message. A cipher is used to change the plain text message into an enciphered message that others cannot understand. A cipher is used to rearrange, substitute, and change the original characters in the message into secret codes that the
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Similar to our earlier post on how devices communicate with each other, when a Client and Server system on the internet have to communicate with each other, they use the TCP/IP protocol and use what is called a 3 Way Handshake. Just like how two people communicate and decide, say something like: Hi, I want
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Cyber Law is very important because it touches all aspects of transactions on the Internet. Cyber Law concerns each and every individual concerning the Internet. Fortunately or unfortunately, the human mind can be very ingenious once it decides to do something. In that regard, cyber criminals keep coming up with ingenious ways to perpetuate a
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