Information Security deals with protection of information against unauthorized access and adding various security measures. Moreover, there are various security objectives. Let’s take a look at them. Information...
Category - Cryptography
Actually most of the times who are not prone to technology and it’s technical terms, obviously such people will not be knowing what is quantum cryptography? Quantum cryptography is a technology that uses quantum physics...
The world is moving towards the quantum revolution. Quantum computers give access to unparalleled processing power. However, with all the advantages, we are also faced with unprecedented challenges which the conventional...
As we have already learnt about cryptography, let us learn more about substitution technique. Firstly, Substitution Techniques is a way of encrypting the message where characters or symbols replaces the original...
Quantum computing uses the phenomenon of quantum mechanics to take a big leap forward in computers to solve some problems. As we know, quantum computers use quantum bits, or qubits, to encode information as 0s, 1s. Or it uses...
A digital signature is a means of verifying the authenticity and integrity of a message. This is achieved by using public key cryptography techniques combined with cryptographic hash functions. Combined with trusted...
Firstly, DOS is an acronym for Denial of Service attack which aims to shut down a network or a machine. Secondly, Distributed denial of service attack uses Bots to attack at the same time. Both the attacks make the network...
Firstly, let’s see what is blockchain technology? Blockchain is a system of recording information in a way that makes it difficult or impossible to change, hack, or cheat the system. Moreover, blockchain is a shared...
Block cipher is a structure which considers block of plaintext as a whole and produces a ciphertext of equal length. Typically, it uses block size of 64 bit or 128 bits. For instance, DES or AES, Triple DES, Feistel Cipher are...
DES is an acronym for Data Encryption Standard which is a symmetric key encryption to encrypt digital data. In addition, it is a type of block cipher with block size 64 bit. AES is Advance Encryption Standard which is also a...