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Consider the following symmetric encryption scheme (KG,E,D), which uses a pseudo-random permutation P, and a message authentication scheme (Gen, Tg,Vrfy) with unique tags. The key generation algorithm KG returns randomly chosen keys k1, k2. On input keys k1,k2 (returned by KG) and message m, the encryption algorithm E randomly chooses r, computes x=(r, m xor P(k1;r)) and returns ciphertext c=(x,Tg(k2;x)). On input keys k1,k2 (returned by KG) and ciphertext c, the decryption algorithm D writes c as (c1,c2), verifies whether Vrf(k2;(c1,c2))=1; if yes, it writes x as (x1,x2) and returns message m'=P(k1;x1) xor x2, otherwise it returns an error message. Which is the strongest security notion satisfied by the scheme (KG,E,D)? A. Security in the sense of indistinguishability B. Security in the sense of indistinguishability with chosen message attack C. Security in the sense of indistinguishability with adaptive chosen message attack D. Security in the sense of indistinguishability with chosen ciphertext attack Please explain your reasoning.
Create a method that prints a rectangle of characters to the console. The method should use a character set that parameter to the method.
Which of the following is wrong? A. LDX #$5000 B. LDX #2550 C. LDX #$10000 D. LDX #$00 Explain Why!
It needs to have high-level descriptions of the customer's expectations and the criteria for success. You need to describe why these are the best choices and why alternatives will not work as well.
Write the Verilog code for a two-input, two-bit adder. The inputs are to be set by switches SW0-SW3 the three-bit result is to be displayed on LED0-2. Then write the Verilog code to add two hexadecimal integers stored in 4 bits each.
What organisational changes are necessary in order to implement the long-term plan derived in question number two above?
Describe a DBMS and its functions. Name some of the popular DBMS software? You should search the Internet for the updated DBMS technology.
Prepare a Disaster Recovery (DR) Plan for following organization; Company; Widget Works Electronics, Employees; 250, Infrastructure; 1 Central Office building housing primary datacenter. 10 satellite sales branches.
Which three editions of Vista allow you to join a domain on a network
How would the actions of a hostile nation be any different than the actions of a hostile (competing) foreign company?
Explain the concept of a DHCP lease. How is it obtained? How is it used? What does it provide?
What kind of a binary tree is the heap? Explain different operations of heaps. Compare heaps to binary search trees in term of efficiencies of main operations.
For example, if the input is 1011, then the output will be 1. You can assume that the input word is guaranteed to contain only 0s and 1s.
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