Public Key Cryptography and Information Security: A Literature Review (original) (raw)
Related papers
Public Key Cryptology – An Art of Keeping Secrecy and Authenticity
Cryptology consists of several mechanisms which ensure confidentiality and authenticity of the data. The fundamental objective of cryptology is the secure communication between sender and receiver through insecure channel. Modern cryptosystems can be broadly categorized in to secret key (symmetric) and public key (asymmetric) cryptosystems based up on the key which is used for data transmission. This paper focuses on the discussion of different categories of public key cryptosystems with its merits and demerits.
Encryption: Strengths and Weaknesses of Public-key Cryptography
Public key cryptography has become an important means of ensuring confidentiality, notably through its use of key distribution, where users seeking private communication exchange encryption keys. It also features digital signatures which allow users to sign keys to verify their identities. This research presents the innovations in the field of public-key cryptography while also analyzing their shortcomings. We present methods of improving upon the weaknesses that include techniques involving double encryption and mutual authentication. These contributions introduce new levels of security to the subject with ideas to combat man in the middle attacks and other hacker scenarios. Public-key encryption with digital signatures offers both security and data integrity against most attackers.
1987
We are going to devote most of our attention in this talk to the RSA Public Key Cryptosystem because it not only remains unbroken but it has some other useful features for digital signatures and authentication. We will briefly mention some other methods which have been compromised to some degree, and one, McEliece's which has not, but which are still valid when both keys are kept secret and some have other features which may be useful.
COMPARATIVE STUDY OF PRIVATE AND PUBLIC KEY CRYPTOGRAPHY ALGORITHMS: A SURVEY
Internet has revolutionized many aspects of our daily lives. Nowadays Internet is used for millions of applications. Many people depend on Internet for several activities like on-line banking, on-line shopping, on-line learning and on-line meetings etc. Huge amount of data travels over the network. Security of data over the network is a critical issue. Making a network secure involves a lot more than just keeping it free from programming errors. Network Security refers to the protection of valuable data against Interception, Interruption, Modification, Fabrication and Non-repudiation. Computer networks are inherently insecure so to protect data over the networks we need some mechanism. Cryptography came into existence to ensure data security. There are various threats to data: Backdoors, denial-of-service attack, direct-access attack, eavesdropping, exploits, indirect-attacks and social engineering and human-error. Cryptography provides protection against security threats. Cryptography means secret writing, the content of original text is scrambled to produce coded text and job of intruders becomes difficult. Secret-writing is the strongest tool of cryptography which protects the data. Cryptography is used to ensure confidentiality, integrity and availability of data by using private and public key cryptography algorithms. Private and Public key algorithms are used to transform original (readable) messages into unreadable jumbles. This paper describes the comparison of Private (symmetric) and Public (asymmetric) key algorithms.
Public-Key Cryptography Techniques Evaluation
Cryptography techniques play an important role in modern world. The purpose of such techniques is to ensure the contents being unreadable to anyone except for parties who agreed to use some specific scheme. Moreover, current cryptography techniques provide more sophisticated services, such as message integrity, authentication, time stamping, and many others. There are two main approaches for cryptography: private-key cryptography and public-key cryptography (PKC). In this paper we focus on PKC techniques giving a comparison between three main techniques, namely, Public key Infrastructure (PKI), Identity- Based Cryptography (IBC) and Certificate less Public Key Cryptography (CL-PKC). In this research, a brief definition, advantages and disadvantages and analysis of main problem, namely, the revocation problem, are introduced for the three techniques. Also, a variety of available solutions to overcome the revocation problem in each technique are highlighted. Finally, some common applications and schemes for each technique are summarized.
A Note on Public Key Cryptosystems
International Journal of Advanced Networking and Applications
Public key or asymmetric cryptosystems use public-private key pair for the secure transmission of data. RSA and ECC (Elliptic Curve Cryptography/Cryptosystems) are widely used cryptosystems in this category. Public key cryptosystems rely on mathematical problems known as hard problems. The security of these cryptosystems is based on these hard problems. Public key cryptosystems solve the key transportation problem of symmetric key cryptosystems and able to provides digital signatures also.
Public-Key Cryptography Theory and Practice
Viele haben auf die eine oder andere Weise dazu beigetragen, dass diese Dissertation so entstehen konnte, wie sie nun vorliegt. Der Versuch einer vollständigen Aufzählung müsste scheitern; hier seien zunächst die erwähnt, die nicht mit Namen genannt werden können, weil sie als anonyme Gutachter für Konferenzen tätig waren und dabei Anregungen zur Darstellung einiger der hier präsentierten Ergebnisse beigetragen haben. Außerdem zu nennen ist David Hopwood, der in einer früheren Fassung der Ausführungen zur beweisbaren Sicherheit des Mix-Verfahrens (hier in Abschnitt 4.2) eine Lücke aufgespürt hat. Prof. Johannes Buchmann hat es auf bemerkenswerte Weise verstanden, die Arbeitsbedingungen zu schaffen, in denen diese Dissertation gedeihen konnte, und hat wertvolle Anregungen geliefert. Auch alle anderen am Fachgebiet Theoretische Informatik hatten teil daran, eine angenehme und fruchtbare Arbeitsatmosphäre zu schaffen. Danke!
Vulnerabilities in Public Key Cryptography
International Journal of Psychosocial Rehabilitation
Cryptography plays a vital role in securing data for IT infrastructure by enabling an adequate level of security to the business. The increased significance of security in the IT infrastructure has raised the demand for public key cryptography. Public key cryptography eliminates the primary concern in private key cryptography, i.e. exchanging the key between the sender and the receiver by having a pair of keys. Public key cryptography enables the exchange of the key even in an unsecured network. After the introduction of public key cryptography, this type of cryptography is the best solution in securing the transmitted data between the sender and the receiver. However, there are vulnerabilities in this type of cryptography that both the sender and the receiver need to know. This research is focused on determining the vulnerabilities of public key cryptography. It also emphasizes how security specialists can overcome these vulnerabilities in public key cryptography.
Public-Key Cryptography (Dagstuhl Seminar 11391)}}
From September 25th till September 30th, 2011, the Dagstuhl Seminar 11391 about "Public-Key Cryptography" took place at Schloss Dagstuhl. The meeting hosted 33 international researchers and incited active discussions about recent developments in this area. Seminar 25.-30. September, 2011 -www.dagstuhl.de/11391 1998 ACM Subject Classification D.4.6 Security and Protection