Public-key cryptography

between two phases, Sender Phase and Retrieval Phase. 3.2.3.1 Sender phase This phase includes three algorithms as detailed below: I. Key generator: the data owner DO initiates the scheme by using KeyGenerator(µ)…

process is achieved by processing plain text and key for initial and 9 rounds, Same decryption is takes place but in reverse manner. A 4x4 state is formed in each round and particular length data is introduced in it for encryption process.The 10, 12, 14 rounds are there for 128, 192,256 bits in length respectively. Initially a key expansion process is used to expand the basic 16 byte key into 11 arrays of total 44 words.Due to this the 16 byte key is converted into 176 byte i.e. 44words which…

encryption. There are some basic information about this type of cryptography will be reviewed. Then, symmetric cryptography advantages and problems will be covered. After that, comparison on several symmetric algorithms are discussed. These algorithms are DES, Triple DES, AES, RC2, RC4, RC6, and Blowfish. Keywords—Cryptography, Symmetric Encryption, Encryption, Decryption, DES, Triple DES, AES, RC2, RC4, RC6, Blowfish. I. INTRODUCTION Cryptography is an enormous topic, for it has several…

to outside parties. Various encryption algorithms, many of which are unbreakable, are available for free public use around the world. Unimpeded public access to technology such as encryption gives unethical people the opportunity to abuse its power and commit crimes with…

Cryptography claims its roots from the latin root of kryptos, which means hidden secret, and graphein, which means writing. According to Dictionary.com, "Cryptography is the science or study of techniques of secret writing and message hiding." In today 's fast paced and tech savvy world, it isn 't strange to have at least a fleeting knowledge of cryptology and encryption specifically but this relatively young science and field of engineering has very deep roots. The generally agreed upon…

Cybersecurity is vital to improving the security and reliability of the Western Interconnection power grid. As one of the most complex and critical infrastructures, the importance of prioritizing the continued security of the power grid should be at the top of the list. There are many different options that can improve security levels of both a physical and logical nature, such as disk drive encryption, digital certificates, Transport Layer Security (TLS), and Virtual Private Networks.…

Roles of Core Technologies in an Effective IT System Technology permeates all aspects of modern civilization. It is woven into the fabric of our daily lives. What was once barriers to knowledge and communication have been stripped down as we are now connected, in an instant, to the farthest reaches of the globe. With every new advancement comes an opportunity to usher in a revolution in how societies live, work, and play. The major players that make it all possible are the men and women who…

Public key infrastructure is the combination of software, encryption technologies and services that enables enterprises to maintain the security of their business transactions on over the internet. It integrates digital certificates, public key cryptography and certification authorities into a complete enterprise-wide network security architecture. It is also defined as a set of roles, policies and procedures needed to create, revoke digital certificates and manage public-key encryption. It is…

you can not get the origin meaning of the value. It is usually used to identify a file’s integrity or the source of a software instead of check the value of the data. However, the limited function can cause troubles in the more complex society. The public needs comprehensive functional tools to help them deal with the daily life. For example, when a user is going to store a password when logging into a system, whether to use the method of hashing…

repository or central database and trusted third party Central authority(CA) are used to revoke, issue and store the keys. There is always a risk that these centralized infrastructure can be violated. Hence, Blochcain can be use to to reduce the risks of storing PKI on centralized infrastructure. Here the Data(Keys) will be distributed across the blochchain network[3] In the 2nd section we will go through the introduction of blockchain, In the 3rd Section, we will see how blockchain protects…