What is digital signature?
A digital signature is a digital code (generated and authenticated by public key encryption) which is attached to an electronically transmitted document to verify its… Read More »What is digital signature?
information security
AES encryption
AES encryption web tool to encrypt and decrypt text using AES encryption algorithm. You can chose 128, 192 or 256-bit long key size for encryption and… Read More »AES encryption
Difference between substitution and transposition in terms of encryption
This post discusses the difference between substitution and transposition in terms of encryption. There are a number of different types of substitution cipher. If the… Read More »Difference between substitution and transposition in terms of encryption
Asymmetric Encryption
There are two basic techniques for encrypting information: symmetric encryption (also called secret key encryption) and asymmetric encryption (also called public-key encryption.) Symmetric Encryption… Read More »Asymmetric Encryption
The goal of non-repudiation
Nonrepudiation is a method of guaranteeing message transmission between parties via digital signature and/or encryption. It is one of the five pillars of information assurance… Read More »The goal of non-repudiation
Analysis of the Brain Virus, the Internet worm and Code Red
The Brain Virus How it works: One of the earliest and most intensively studied viruses, the so-called Brain Virus got its name by the means… Read More »Analysis of the Brain Virus, the Internet worm and Code Red
