Cryptography is a division of applied mathematics concerned with developing methods to enhance the privacy of communications and protect data from tampering through the use of coded information. The application of quantum principles to information...

In 404 BC when the Persians conspired to attack the Spartans, a messenger to Lysander of Sparta carried a secret message written upon his belt. Lysander wound this belt around a tapered wooden staff and read the message that enabled him to prepare for,...

Cryptography, the science of encoding communications so that only the intended recipient can understand them, is ancient. In almost every civilization, cryptography appeared almost as soon as there was writing. For example, in 1500 B.C.E. a...

Cryptology is the study of encoding and decoding messages and the study of the mathematical foundations of cryptographic messages. The processes involved in cryptology rely on the principles of mathematics and statistics, and encompass areas such as...

Cryptography (or cryptology; derived from Greek κρυπτός kryptós "hidden," and the verb γράφω gráfo "write" or λεγειν legein "to speak") is the practice and study of hiding information. In modern times, cryptography is considered to...

Cryptography is the practice and science of encoding data so that it can only be read by specific individuals. The biggest users of cryptography have traditionally been the military, but the commercial and private use of electronic means of communication has now made cryptography...

Cryptography is the technology of keeping information secure. Only authorized individuals should have access to sensitive information. Simple Cryptography For many centuries, various techniques were used to hide the contents of messages (encryption) from message carriers while also providing a way...

When a telecommunications equipment supplier fired an employee two years ago for stealing product information, it wasn't the act alone that proved worrisome -- it was how it occurred.To carry out the theft, the employee used instant messaging, an increasingly popular way of zipping short...

The transmission of the information is often through electronic medium such as mobile phone communication, electronic commerce, the on-line chat service etc. Unfortunately, those way of transmit the information are not safe. The safe protection system of any rank all may introduce the concept of encryption. The data encryption has the very vital significance to the network correspondence and the data storage, it can play an important role of keep the data security, authenticate message, maintain the integri