Essays on Cipher

Background Study

Encryption is critical in ensuring that virtual security for users and administrators is ensured. In a retail store of the case study model, client information integrity is paramount. With a client base of 5,000 subscribers and downloads of confidential monthly payments, the need for a secure and high-level security level cryptography is paramount. In this paper, a report of the necessity encryption methods adoption by the electronic store is presented. Also, the paper offers the solution of the public key encryption supported by illustrative diagrams for the negotiation stage. As the chief of information technology at the electronics ...

Part 1

Cipher Definition Cipher refers to an algorithm that assists in executing encryption or decryption. It allows one to change a plain text to unreadable form or changing unreadable text to readable text by human beings (Stinson 134).

Difference between cipher and code

There are several differences that exist between a cipher and a code. Firstly, codes are easily computable thus are very fast. On the other hand, ciphers take much time to compute or rather they are non-computable hence end up being slower that the codes. Secondly, ciphers depend on a key since they are generated using a given key. However, codes do not ...

Phone encryption is a temporary way of securing the data on a mobile device. Data can be lost or tampered with when the phone is lost, damaged or stolen. When the phone gets into the wrong hands, the data and information can be transferred and wrongly used. When a phone is encrypted, the contents and information are turned into cipher text. Anybody trying to read the information cannot read it (Ciriani, et al. 6) When the phone is returned to the owner, the same method that was used to encrypt the phone can be used for unlocking the phone ...

Cryptography is an art that is involved in writing and interpreting secret messages. It involves encrypting messages into symbols, numbers, and letters that form a different meaning to conceal the message. In other words, it is the use of codes to conceal a message. In the past, cryptography was very common, especially during epochs of combat where it was deployed to communicate coded messages (Bauer 34). It was an important tool that a particular community would use to conceal messages from their enemies. Today, this mode of communication is rarely used. However, codes are commonly used in technology, especially ...

Lightweight block ciphers are cryptographic primitives that are considered to be easy on the computer resources. The structure, block size and the number of rounds of the algorithms allow faster execution with little demand for the computing resources. On the hardware lightweightness is measured based on the execution latency, the bandwidth on communication channels and the amount of energy the computing device requires for execution of the algorithm. Demand for lightweight algorithms in cryptography has been increased by the need to provide security for the upcoming pervasive information Technology Landscape which is highly dependent on small and cheap devices. ...

The History of Cryptology

The concept of "security" covers a wide range of interests of both individuals and entire nations. In present days, a prominent place is given to the issue of information security, the protection of confidential business information from various rival groups. The importance of keeping information in secret was already known since ancient times. With the advent of writing, there was the danger of reading it by undesirable persons. There were three main ways to protect information. One of them is supposed to protect it by forceful methods: The secret information (documents) was protected by the responsible persons. The second ...