1) How does the public key cryptography work? Explain in detail? 1. Public-key‚ what it is Public-key refers to a cryptographic mechanism. It has been named public-key to differentiate it from the traditional and more intuitive cryptographic mechanism known as: symmetric-key‚ shared secret‚ secret-key and also called private-key. Symmetric-key cryptography is a mechanism by which the same key is used for both encrypting and decrypting; it is more intuitive because of its similarity with
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Public Key Infrastructure (PKI) Public Key Infrastructure (PKI) is a security architecture that has been introduced to provide an increasedlevel of confidence for exchanging information over an increasingly insecure Internet. PKI may involve the use of methods‚ technologies and techniques that together provide a secure infrastructure. PKI involves the use of a public key and private key pair for authentication and proof of content. A PKI infrastructure is expected to offer its users the following
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Public-Key Infrastructure RFC 2822 (Internet Security Glossary) defines public-key infrastructure (PKI) as the set of hardware‚ software‚ people‚ policies‚ and procedures needed to create‚ manage‚ store‚ distribute‚ and revoke digital certificates based on asymmetric cryptography. The principal objective for developing a PKI is to enable secure‚ convenient‚ and efficient acquisition of public keys. The Internet Engineering Task Force (IETF) Public Key Infrastructure X.509 (PKIX) working group has
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Public Key Infrastructure Strayer University CIS 333 – Network Security Fundamentals November 11‚ 2014 Public Infrastructure Key The PKI is a set of hardware‚ software‚ procedures and people for the creation‚ distribution‚ storing and management of digital certificates. It also maintains the networking environment of an organization by providing management service which could enable digital signature capabilities. It also enabled the users of unsecure public network for exchanging and private
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Mary Lou DeMonte Marine Bio Key Largo Essay September 28‚ 2013 Key Largo Being able to go on the Key Largo trip this year would be amazing! I remember hearing my cousins and even some friends that have gone in the past years talk about how much fun they had‚ and how it was a once in a lifetime experience. They told me that once the opportunity came around to take it‚ so I did. I can remember my first time ever snorkeling. I was six years old vacationing with my family in the Bahamas‚ Nassau
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saltwater fish and identified their species. We had two trips to the Mead Gardens and one trip to the Florida Keys. To survey the fish‚ we used multiple fish catching techniques. In the Mead Gardens‚ to catch fishes‚ we used two separate types of fish traps. Furthermore‚ in the Florida Keys‚ we caught fish with a gill net. We also observed and identified the fish differently in both places. In the Keys‚ we went snorkeling and identified fishes from memory and pictures‚ but in the Mead Gardens‚ after we caught
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the movies. Tim Burton often uses low-key lighting in many of his movies because the majority of his movies are creepy or mysterious. In Edward Scissorhands he uses high-key lighting to make the town look like a so called “perfect” society but only to find out that everybody is nosy and rude. Edward’s mansion is dark with low key lighting and really looks like it doesn’t belong in such a bright town. In Charlie and the Chocolate Factory‚ Tim Burton uses low-key lighting on the small house a little
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work for Key Stage 3 Planning is a key part of teaching. Without a coherent plan lessons may lack structure and direction. Long and medium term planning are an important part of this and in this rationale I hope to demonstrate that my planning does indeed have all of these qualities. The first element to be considered when rationalising this scheme of work is whether or not it meets the needs of Key Stage 3 pupils. I believe that it does because the attainment focus is all within Key Stage 3.
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The study of Public-Key Cryptography Enabled Kerberos Authentication by Sufyan and Mayada (2011) attempt to extend the Kerberos authentication protocol standard to support public key cryptography. This is to eliminate some of the limitations in the standard Kerberos protocol which uses symmetric key cryptography. There are 3 extensions to add support of public-key cryptography at different stages of the Kerberos framework‚ which are PKINIT‚ PKCROSS and PKTAPP. Public-Key Cryptography for Initial
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QUESTION BANK 13.1 13.2 Define E-commerce. What are the different types of E-commerce? Explain B2B E-Commerce using an example of a book distributor who stocks a large number of books‚ which he distributes via a large network of book sellers. Assume that the distributor has stocks of books of a large number of publishers and book sellers order books as and when their stock is low. Distributors give 1 month’s time to booksellers for payment. 13.3 Explain B2C E-Commerce of a customer reserving airline
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