About encryption and quantum cryptography

Ben Rothke

R. Thenmozhi, D. Vetriselvi, A. Arokiaraj Jovith

Cryptography is the process of encrypting data or transforming plain text to ciphertext so that it can be deciphered only by appropriate key. Quantum cryptography employs quantum physics principles to encrypt and transport data in an unpackable manner. Quantum key distribution (QKD) is a technique for creating and exchanging private keys over quantum channels between two parties. Then, using standard cryptography, the keys can be used to encrypt and decrypt messages. Unbreakable encryption is something we really must have. The integrity of encrypted data is now in danger due to the impending development of quantum computers. Fortunately, quantum cryptography, via QKD, provides the answer we require to protect our information for a very long time to come. This is all based on the intricate principles of quantum mechanics. This chapter is discussing the various algorithms used and the applications of quantum cryptography.

Ali Shakir Mahmood, Munthir Bahir Tuieb, Ahmed Abd Ali Abdulkadhim

As in last few years, quantum cryptography appears to overcome the current challenges of time and quality of the encryption systems and offer new fields of cryptography. This paper briefly introduces the quantum cryptography from the basic ideas, theoretic foundation, as well as analyses some innovative papers where used quantum theory in the field of cryptography especially for image encryption. Formerly, current work illustrates the accomplishments of quantum cryptography in image encryption methods and its upcoming progress schemes. Conclusively, its motivation to make a general view that represents a new trend in cryptography scheme can be developed on the benefits of the quantum cryptography.

Ben Rothke

ARTUR K. EKERT

Harshad R. Pawar, Dinesh G. Harkut

Now a days, where all well aware about the internet and other means of sharing of multimedia information between two parties which happens in public environment, so it is important to maintain the security of these kind of personal data which is stored at computers, on cloud or in the personal storage. There are many techniques which are used to provide authenticity, confidentiality, secrecy, and integrity to the data one of them is the Cryptography. In this paper, we survey and compare the existing work and concepts of Classical (Modern) Cryptography (CC) and Quantum Cryptography(QC) used for image encryption and decryption. Each encryption and decryption techniques have their strengths and weakness. In this paper, we focus on the selecting the best cryptography technique to be used for image encryption and decryption so that researchers can get idea about the selection of efficient cryptography technique.