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Articles by Ginni
Page 32 of 124
What are the components of Modern Block Cipher in Information Security?
A modern block cipher is a cipher which encrypts m-bit block of plaintext and decrypts m-bit block of ciphertext. For encryption or decryption, modern block cipher facilitate a K bit key and the decryption algorithm should be inverse of encryption algorithms and for both encryption and decryption similar key is used.A block cipher works on a plaintext block of n bits to make a cipher text block of n bits. There are possible multiple plaintext blocks and, for the encryption to be reversible (i.e., for decryption to be applicable), each should create a unique cipher text block. Such transformation is ...
Read MoreWhat are the types of Hashing in Information Security?
There are various types of hashing are as follows − RIPEMD − RIPEMD was produced in Europe as an element of RIPE project in 96 by researcher included in attacks on MD4/5. It is same as MD5/SHA and uses two parallel lines of 5 round of 16 steps. It makes a 160-bit hash value. It is slower but possibly more secure than SHA. MD5 − An MD5 hash function encodes a string of data and encodes it into a 128-bit fingerprint. MD5 is generally used as a checksum to check data integrity. MD5 is also called as suffer from expanded hash collision ...
Read MoreWhat are the popular Hashing Algorithm?
A hashing algorithm is a mathematical algorithm that transform an input data array of a specific type and arbitrary length to an output bit string of a fixed length.Hashing algorithms take any input and transform it to a uniform message by utilizing a hashing table.There are some popular hashing algorithm are as follows −MD5 − MD5 stands for message-digest algorithm. It is a cryptographic protocol used for authenticating messages and content verification and digital signatures. MD5 is based on a hash function that verifies a file and it can sent matches the file received by the person it can sent ...
Read MoreWhat is the working of Hashing?
Hashing is the procedure of interpreting a given key into a code. A hash function is used to substitute the data with a freshly produced hash code. Furthermore, hashing is the practice of taking a string or input key, a variable generated for saving narrative information, and defining it with a hash value, which is generally decided by an algorithm and create a much shorter string than the original.Hashing is generally a one-way cryptographic function. Because hashes are irreversible, understanding the output of a hashing method does not enable us to regenerate the contents of a file. It allows us ...
Read MoreWhat is Block Cipher in information security?
A block cipher is a set of encryption where plain text is first breaked into several blocks, each with a fixed size. Essentially, each block has the similar number of data bits. At any given time, the encryption procedure work on an individual block of plain text and uses the encryption key to transfer it into a block of ciphertext.Each block is of the similar size (such as 64 bits). For example, a 160-bit plain text is encoded into 2 blocks of 64-bits each, while the third block will have the remaining balance of 32 bits. It will be padded ...
Read MoreWhat are the Playfair Cipher Technique in Information Security?
Playfair is a substitution cipher. Playfair cipher was originally invented by Charles Wheatstone in 1854 but it bears the name of Lord Playfair because he assisted the need of this method.Playfair ciphers are an approach of block cipher and the ciphertext character that restore a specific plaintext character in the encryption will rely upon in an element on an contiguous character in the plaintext.Encryption is adept using a square array of characters, built from the encryption key. Because the group of plaintext characters is the 26-letter English alphabet. This array would be 5 × 5, with 2 of the 26 ...
Read MoreHow does data encryption work?
Encryption is the phase of taking plain text, such as text message or email, and scrambling it into an unreadable structure known as “cipher text.” This helps secure the confidentiality of digital information either stored on computer systems or sent through a network like the internet. When the pre-determined recipient accesses the message, the data is translated back to its original form. This is known as decryption.Data encryption is the phase of transforming information from a readable format to a scrambled element of data. This is done to avoid prying eyes from reading confidential information in transit. Encryption can be ...
Read MoreWhat are the types of Cryptanalysis Attacks on AES in information security?
There are various types of Cryptanalysis attack on AES which are as follows −Linear Cryptanalysis Attack − Linear cryptanalysis is based on discovering affine approximations to the element of a cipher. It tries to take benefit of high probability linear relationship that exist among inputs and outputs of a function block.In the approach of a block cipher, linear set of plain text pattern and linear set of ciphertext patterns are distinguished to linear set of key bits. The main objective of linear cryptanalysis is to find a relationship that is prove either significantly more or less than 50% of the ...
Read MoreWhat is Encryption in Information Security?
Data encryption is the procedure of transforming information from a readable format to a scrambled element of information. This is completed to avoid prying eyes from reading confidential information in transit. Encryption can be used to documents, files, messages, or some different form of communication over a network.Encryption is a security approach where data is encoded and can only be accessed or decrypted by a user with the proper encryption key. Encrypted data is also called a ciphertext. It can appears scrambled or illegible to a person or entity accessing without permission.Data Encryption is used to check malicious or negligent ...
Read MoreWhat is the difference between Linear Cryptanalysis and Differential Cryptanalysis in Information Security?
Linear CryptanalysisLinear cryptanalysis is a general style of cryptanalysis based on discovering affine approximations to the element of a cipher. Attacks have been produced for block ciphers and stream ciphers. Linear cryptanalysis is one of the two most broadly used attacks on block ciphers and the other being differential cryptanalysis.Linear cryptanalysis is a strong cryptanalytic tool regarding cryptanalysis of block ciphers. When using linear cryptanalysis, an adversary attempt to discover a linear expression that approximates a non-linear function with a probability different than 1/2.When a best approximation, it includes a relation between the plaintext and ciphertext, is discovered, the adversary ...
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