In AES, to make the s-box, we apply the transformation – b’i = bi XOR b(i+4) XOR b(i+5) XOR b(i+6) XOR b(i+7) XOR ci What is ci in this transformation?

In AES, to make the s-box, we apply the transformation b’_i = b_i XOR b_(i+4) XOR b(i+5) XOR b_(i+6) XOR b_(i+7) XOR c_i What is c_i in this transformation?

A

c_i is the ith bit of byte c with value 0x63

B

c_i is the ith bit of byte c with value 0x25

C

c_i is the ith bit of byte c with value 0x8F

D

c_i is the ith bit of byte c with value 0x8A

Which of the following statement is correct? Answer using given below:
(1) Doctrine of indoor management apply in case of knowledge of irregularity in company.
(2) Doctrine of indoor management does not apply in case of suspicion of irregularity.
(3) Doctrine of indoor management apply in case of forgery.
(4) Doctrine of indoor management does not apply if the act of an officer of a company is one which would ordinarily be beyond the powers of such an officer.

A

Only (1) is correct

B

Only (2) is correct

C

Only (3) is correct

D

Only (4) is correct

Which of the following statements are true? i) practical application of XOR linked lists are in environments with limited space requirements, such as embedded devices. ii)xor lists are not suitable because most garbage collectors will fail to work properly with classes or structures that don’t contain literal pointers iii)in order to calculate the address of the next node you need to remember the address of the previous node iv)xor lists are much efficient than single, doubly linked lists and arrays

A

i, ii, iii, iv

B

i, ii, iii

C

i, ii

D

i

The inverse s-box permutation follows, b’_i = b_(i+2) XOR b(i+5) XOR b_(i+7) XOR d_i Here d_i is

A

d_i is the ith bit of a byte ‘d’ whose hex value is 0x15

B

d_i is the ith bit of a byte ‘d’ whose hex value is 0x05

C

d_i is the ith bit of a byte ‘d’ whose hex value is 0x25

D

d_i is the ith bit of a byte ‘d’ whose hex value is 0x51

The Chi function is defined as ← a XOR ( aXOR 1) AND a) b) a ← a AND ( aXOR 1) AND a) c) a ← a AND ( a XOR a) d) a ← a XOR ( a AND a)

A

a ← a XOR ( aXOR 1) AND a)

B

x

C

x

D

x

The inverse s-box permutation follows, b’i = b(i+2) XOR b(i+5) XOR b(i+7) XOR di Here di is –

A

di is the ith bit of a byte ‘d’ whose hex value is 0x15

B

di is the ith bit of a byte ‘d’ whose hex value is 0x05

C

di is the ith bit of a byte ‘d’ whose hex value is 0x25

D

di is the ith bit of a byte ‘d’ whose hex value is 0x51

On comparing AES with DES, which of the following functions from DES does not have an equivalent AES function?

A

f function

B

permutation p

C

swapping of halves

D

xor of subkey with function f

Which of the following phrases (i),(ii), and (iii) given below each sentenceshould replace the phrase printed in boldletters to make the sentence grammaticallycorrect? Choose the best option among thefive given alternatives that reflect the correctuse of phrase in the context of thegrammatically correct sentence. If thesentence is correct as it is, mark (E) i.e., "Nocorrection required" as the answer. My father told me that all the labor andeffort one puts in to the professional frontis meant to make life easier and thereforeany professional success coming at the cost ofpersonal happiness is pointless.
i. one puts at the professional front is meantto make life
ii. one puts onto the professional front ismeant to make life
iii. one who puts into the professional front ismeant to make life

A

A. Only i

B

B. Only ii

C

C. Only iii

D

D. ii and iii

For the cipher text 0000 0111 0011 1000 and Key 0110 1111 0110 1011, apply the Simplified AES to obtain the plaintext. The plain text is

A

0110 1001 0111 0001

B

0110 1111 0110 1011

C

0010 1001 0110 1011

D

1111 0101 0111 1111

একটি XOR লজিক গেট নিম্নলিখিত কোন লজিক গেট/ গেটগুলোর সমবায়ে গঠিত হতে পারে? (An XOR logic gate can be constructed from the combination of which of the following logic gate/gates?)

A

OR gate

B

AND gate, OR gate, and NOT gate

C

AND gate and NOT gate

D

OR gate and NOT gate