(1 point) This question concerns the DES IP box. Please enter all answers as strings of 0's and 1's. Consider the 64 bit DES block below. 0000000001100001001000000000000000000000000000000000000000001000 Suppose that this is the initial input to DES. What will the block look like after the initial permutation (IP) is applied?
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- The following is the input to the round 1 Byte Substitution Layer in AES. 11111001111010011100100111100001110110011110110100111001111000001110000110000001100000011111111111111001111110011110000111101111 What will be the output to the Byte Substitution Layer?SHOW ALL YOUR WORK PLEASEThe decoder translates the binary value into a decimal value. The following figure shows a block diagram of 3-bit binary decoder. The 3-to-8 decoder has three inputs A2, A1 and A0, and eight outputs, i.e. Y7 through Y0. Answer the following questions. (Note: You should show all the steps) 1. If the inputs A2 A1 A0 = 0 0 0, what are the outputs Y7 – Y0? 2. If the inputs A2 A1 A0 = 1 0 0, what are the outputs Y7 – Y0?
- Answer the given question with a proper explanation and step-by-step solution. Consider a Hamming (7.4) code in which the parity bits are calculated according to the following equations: r0 = a0 + a1 + a2 r1 = a1 + a2 + a3 r2 = a0 + a1 + a3 The following dataword is to be coded with this scheme: format: a3 a2 a1 a0 0010 What is the parity code for the above dataword? Show it in decimal format for (r2,r1,r0); e.g. if the resulting bits are r2=1, r1=0, r0=0 (100), type the decimal equivalent of 100, which is 4.During a 1/0 read: [select all that are true] The address flows in to the MPU RD = 0 The address is sent out by the MPU WR =0 Data flows out from the MPU Data flows to the MPUa) The figure below shows a ROM which is used to implement the functions fı,f2,f3 and f4. АВС 2 1 0 3-to-8 decoder 0 1 23 4 5 6 7 fi f2 f3 f4 Deduce the truth table of functions f1,f2,f3 and f4 ABC |f1 f2 f3 f4 1 0 1 0 1 1 1 1 1 1 1 |11|1 b) Program the PAL shown in figure to implement the following logic functions Fl=ĀD+BC+BCD F2=ABCD+AC+BCD F1 F2
- 5. Let the content of register $t1 represent a 2's complement number N. Write a MIPS code fragment such that the register $t2 stores the absolute value of N. In other words, register $t2 has a copy of register $t1 if N is positive, and $t2 should hold the negative of N, if N is negative.Show the first eight words of the key expansion for a 128-bit key 0x 0F 0E 0D 0C 0B 0A 09 08 07 06 05 04 03 02 01 00. Please explain how you get the answer step by step.The decoder translates the binary value into a decimal value. The following figure shows a block diagram of 3-bit binary decoder. The 3-to-8 decoder has three inputs A2, A1 and A0, and eight outputs, i.e. Y7 through Y0. Answer the following questions. (Note: You should show all the steps) a) If the inputs A2 A1 A0 = 0 0 0, what are the outputs Y7 – Y0? b) If the inputs A2 A1 A0 = 1 0 0, what are the outputs Y7 – Y0?
- When the result of an unsigned arithmetic operation is too big to fit into the destination, what flag is set?Use the following data declarations. Assume that the offset of byte Val is 00000000: .data byte Val sbyte 1,2,3.-7h word Val word 1000h.2000h 3000h, 4000h dwordVal dword 34567890h, 90785634h, 1234674Sh Show the value of the final destination operand after each of the following code fragments has executed: (If any instructions is invalid, indicate "INV" as the answer and briefly explain why) a. moy di 2 mov al, byte Val[di] b. mov bx, word Val mov esi, offset wordVal+4 xchg bx, [esi] R c. movsx cx, byte Val+3 d. mov ax, word ptr [dwordVal mov bl. byte ptr [dwordVal +10] e. mov al, 80h number add al 40h signed ;signed number answer al-= answer bx= answer (show your answer in binary) CX- answer |esi= answer bl= SF=For AES with a 128 bit block length and a 128-bit key length, what is the output of the first round of AES if the plaintext consists of 128 1's and the first subkey also consists of 128 zeroes