How can block cyphers and stream cyphers share their keys, and why should they be distinct?
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How can block cyphers and stream cyphers share their keys, and why should they be distinct?
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- What distinguishes stream cyphers from block cyphers? Give three differences and explain your answer.Explain the differences between the block cypher and the stream cypher in terms of how and why keys are exchanged.Explain the differences in how and why keys are exchanged between the block cypher and the stream cypher.
- Give an explanation of the exact distinctions that exist between block cyphers and stream cyphers. Please offer three distinct distinctions, each of which should be explained.What is XSLT code?Q3: With the aid of a diagram, show the sequence of query/response messages that are exchanged to carry out a recursive name-to-address resolution. Include in your diagram a root name server, a top-level name server, and lower-level name servers. Use a DNS of the following URL: http://www.coeng.uobaghdad.edu.iq
- padding Question 11 Suppose we have a block cipher with block size 8-bytes (64-bits) and we will use the padding scheme described in class and used in the homework (PKCS #7, RFC 5652). How many bytes (octets) are added to a message consisting of 11 bytes when applying the padding scheme in PKCS7? Note: The message is written in hexadecimal. Each pair of digits (number or letter) is ONE byte (octet). You answer must be a number (for example, 3, 5, 9, etc.).The Feistel cypher is a standard implementation of the cypher type. What about a modern block cypher that is based on the Feistel cypher?Explain how a publish-subscribe system, such as Apache Kafka, may be used to run several operations on a stream.