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Articles on Trending Technologies
Technical articles with clear explanations and examples
How to change NAT type on PC
If you've ever tried to administer a network, you know how difficult it can be, especially for a newbie. For some tasks, the ability to modify your network settings is critical. NAT is one way to control your network settings and security. You've just received that fantastic new game. Therefore it's time for a thrilling match with your pal. You connect and begin playing, but you quickly begin to lose points due to irritating slowness. One of the problems might be your NAT type therefore we'll show you how to alter it on your PC below.What exactly is NAT?NAT, or ...
Read MoreHow Grinch bots steal your Christmas gifts
The Christmas season is a long-awaited time for some of us to let go of the gas pedal, relax with friends and family, and eat our weight in roasted meats. We devour our body weight in roasted meats with our friends and family.Relaxation, on the other hand, is the farthest thing from the minds of shopkeepers. The holidays may either make or break the whole retail year. Q4 accounts for 26.8% of total yearly retail sales across all verticals, which isn't much greater than an ordinary quarter.In certain industries, though, the holiday season is considerably more important. It accounts for ...
Read MoreHow does the WannaCry malware work?
Ransomware has grown in popularity as one of the most serious cyber threats to enterprises, providing a danger of financial loss, corporate instability, and reputational harm. This sort of malware employs sophisticated encryption algorithms that encrypt all files on a computer and prevent them from being accessed until a decryption key is provided. A ransom message is displayed on the device's screen, requesting that the victim pay a particular amount of money (typically in Bitcoin cryptocurrency) in exchange for the passkey (with no certainty of the malicious hackers keeping their promise). WannaCry ransomware was one of the most catastrophic cyber-attacks ...
Read MoreHow are subkeys generated in Blowfish algorithm?
Blowfish is a symmetric block cipher algorithm invented by Brute Schneier in December 1993. Blowfish is a substitute of DES or IDEA. One of the most popular feistel network ciphers is Blowfish. Blowfish algorithm has 64-bit block size and variable key length from 42 bits to 448 bits. The algorithm includes a key-expansion part, and data-encryption part.Blowfish create the key of at most 448 bits into several subkey arrays the total is 1042 32 bit values or 4168 bytes. It is a 16- round feistel system, which supports very high key-dependent S-boxes and enable 16 iterations.Every round is adapted with ...
Read MoreDifferent Encryption Algorithms
Security is a significant worry for anyone working in IT these days. While there are numerous strategies for safeguarding your data, encryption is one component of protection that every computer user should know. One of the cyber security topics is encryption, which is always in the news, and it's often criticized for disguising terrorist operations by political actors. Anyone with a basic understanding of the various forms of encryptions may believe that this remarkable technology, which is at the heart of internet security and privacy, is being misused.What Is an Encryption Algorithm?A component of electronic data transfer security is an ...
Read MoreWhat are the strength of DES in Information Security?
The strength of DES is as follows −Use of 56 bit keys56 bit key can be frequently used in encryption. There are 256 possible keys. A brute force attack on such number of keys is impossible.A machine implementing one DES encryption per microsecond would take more than thousands of years to divide the cipher.The assumption of one encryption per microsecond is excessively moderate. Diffie and Hellman postulated that the technology existed to develop a parallel machine with one million encryption equipment, each of which can implement one encryption per microsecond.It is necessary that there is more to key-search attack than ...
Read MoreWhat are the popular examples of Block Cipher?
There are some popular examples of Block Cipher which are as follows −The CAST Block Cipher − The CAST Block Cipher is an advancement of the DES block cipher, introduced in Canada by Carlisle Adams and Stafford Tavares. The name of the cipher appear to be after the initials of the inventors. The CAST algorithm has 64 bit block size and has a key of size 64 bits.CAST is based on the Feistel structure to perform the substitution permutation network. The authors defines that they need the Feistel mechanism, as it is well considered and free of basic structural weaknesses.Blowfish ...
Read MoreWhat are the Weaknesses of Data Encryption Standard?
Weaknesses in Cipher Design − Some weaknesses that have been discovered in the design of cipher are as follows −S-boxes − There are three weaknesses have been discovered in S-boxes which are as follows −In S-box 4, the last three output bits can be changed in the same method as the first output bit by integrating some of the input bits.Two particularly chosen inputs to an S-box array can generate the same output.It is possible to acquire the same output in an individual round by converting bits in only three neighboring S-boxes.D-boxes − One mystery and one weakness were discovered ...
Read MoreHow can we evaluate the performance of a Data Encryption Algorithm?
The Data Encryption Standards (DES) algorithm was invented by IBM in the early 1970s. The two main element of the DES-based system are an algorithm and a key. The DES algorithm is a complex interactive procedure includes substitutions, permutations, and mathematical operations.The key feature of DES is that the algorithms is fixed and is public data. But the actual key used is shared secret among the originator and the receiver of a transmission. Advances in DES contains lengthening a key to 128 bits and the multi-pass DES which include multiple passes usually three of encryption and decryption using multiple keys.In ...
Read MoreWhat are the types of Decryption in Information Security?
A reverse process of encryption is known as Decryption. It is a procedure of transforming Cipher Text into Plain Text. Cryptography need the decryption technique at the receiver side to acquire the original message from non-readable message (Cipher Text).Decryption operate by using the opposite conversion algorithm used to encode the information. The same key is needed to return the encrypted data to its initial state.In decryption, the system extracts and transform the garbled information and change it to texts and images that are simply comprehensible not only by the reader but also by the system. Decryption can be accomplished manually ...
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