Xcel Token

A digital signature is a mathematical technique used to validate the authenticity and integrity of a message, software or digital document. As the digital equivalent of a handwritten signature or stamped seal, a digital signature offers far more inherent security, and it is intended to solve the problem of tampering and impersonation in digital communications. Digital signatures can provide the added assurances of evidence of origin, identity and status of an electronic document, transaction or message and can acknowledge informed consent by the signer. In many countries, including the United States, digital signatures are considered legally binding in the same way as traditional document signatures. How digital signatures work Digital signatures are based on public key cryptography , also known as asymmetric cryptography. Using a public key algorithm, such as RSA, one can generate two keys that are mathematically linked: one private and one publ...

A principle which is a core obligation of information security for the safe utilization, flow, and storage of information is the CIA triad. CIA stands for confidentiality, integrity, and availability and these are the three main objectives of information security. For a deeper look into these objectives, check out our  security training classes . ·     The Application Access Layer defines the notion that access to end-user applications have to be constrained to business ought-to-know ·       The Infrastructure Access Layer describes the notion that access to infrastructure components has to be constrained to business ought-to-know. For instance, access to servers.   ·     The Physical Access Layer describes the notion that the physical access to any system, server, computer, data centre, or another physical object storing confidential information has to be constrained to business ought-to-know. ·       Th...

It’s important to first understand encryption before we get into the main topics of this piece. Encryption is a method or mechanism that empowers you to hide your message or data in a way that only the sanctioned people can access. The origins of encryption can be traced back to the times of the great Julius Caesar. Caesar used this method to send his private/ confidential messages. Caesar’s method, normally known as Caesar’s Cipher is one of the most unpretentious methods of encryption. Compared to it, today’s encryption systems are much more complex and advanced. Today, extremely complex algorithms are employed to convert practical information into an unintelligible format. Once encrypted, the message/data can only be decrypted using the proper keys, known as ‘Cryptographic Keys’. Basically, a cryptographic key is a password that is used to encrypt and decrypt information. There are two types of cryptographic keys, and they are, Symmetric Key and an Asym...