Posts tagged Encryption
Authenticated encryption
- 01 Mai 2019
With growing dependency on information technology and more at stake, the security aspect has become more vital than ever. Within this context acts authenticated encryption(AE) as a shared-key based transform whose goal is to provide secrecy, Integrity and authenticity of the encapsulated data [1]. AE combines traditional Symmetric Encryption (SE) with a Message Authentication Code (MAC) in different orders [2]. This article introduces the different combinations of authenticated encryption and their applications.
Encryption overview
- 03 März 2019
Encryption transforms a plain-text into a cipher-text using an encryption key. The process of reversing this operation uses also a key and is called "decryption" [1]. These operations can be explained by the following formulas: \(C=E_{k}(P)\) and \(P=D_{k}(C)\), where P = plain-text, C = cipher-text, E = the encryption method, D = the decryption method, and k = the key [1]. There exist several types of encryption (symmetric/asymmetric) and several ciphering techniques (block/stream) and modes etc [1].
Cryptography overview
- 17 Februar 2019
Cryptography is mostly associated with the development and creation of mathematical algorithms, which are used to insure various security aspects See [1][2]. It is the cornerstone of modern communications security and is based on various mathematical concepts and theories such as: number theory, computational complexity theory and probability theory [3]. The following post provides a quick overview of various cryptography concepts such as encryption, decryption and hashing.