What is the number of possible 3 x 3 affine cipher transformations ?(a) 168(b) 840(c) 1024(d) 1344This question was addressed to me at a job interview.Origin of the question is Overview in section Cryptography Overview, TCP/IP and Communication Networks of Cryptograph & Network Security

What is the number of possible 3 x 3 affine cipher transformations ?(a

1.	What is the number of possible 3 x 3 affine cipher transformations ?(a) 168(b) 840(c) 1024(d) 1344This question was addressed to me at a job interview.Origin of the question is Overview in section Cryptography Overview, TCP/IP and Communication Networks of Cryptograph & Network Security
Answer» CORRECT option is (d) 1344 To elaborate: Since ‘A’ cannot have columns of ‘0’s. so there are ‘7’ choices i.e. 001/010/011/100/101/110/111. ‘a1’ is chosen for first column of ‘A. We have ‘6’ choices for second column, let ‘a2’ be chosen for second column. The final column can be any 3-tuple except 0, a1, a2, a1+a2. That means any one of the remaining ‘4’ 3-tuples may be chosen for the final column. (Total number [email protected] possibilities for A)}=k=7×6×4=168 (Number of [email protected] BLOCK CIPHER transformation)}=k×t=8×168 =1344.

Discussion

No Comment Found

Related InterviewSolutions

Dialog Control and Synchronization are function of which layer?(a) Presentation Layer(b) Application Layer(c) Session Layer(d) Data Link LayerThe question was asked in an interview for internship.This intriguing question originated from TCP/IP and OSI Reference Model topic in division Cryptography Overview, TCP/IP and Communication Networks of Cryptograph & Network Security
UDP stands for ________(a) User Datagram Protocol(b) Used Data Protocol(c) Unified Definition Protocol(d) Undefined Diagnostic ProtocolThis question was posed to me in an interview for internship.My question comes from TCP/IP and OSI Reference Model in chapter Cryptography Overview, TCP/IP and Communication Networks of Cryptograph & Network Security
A digitized voice channel is made by digitizing a 4-kHz bandwidth analog voice signal. We need to sample the signal at twice the highest frequency (two samples per hertz). We assume that each sample requires 8 bits. What is the required bit rate?(a) 64 kbps(b) 32 kbps(c) 128 kbps(d) 16 kbpsI got this question in an internship interview.I would like to ask this question from Layers topic in portion Cryptography Overview, TCP/IP and Communication Networks of Cryptograph & Network Security
It is desirable to revoke a certificate before it expires because –(a) the user is no longer certified by this CA(b) the CA’s certificate is assumed to be compromised(c) the user’s private key is assumed to be compromised(d) all of the mentionedThis question was posed to me during an internship interview.I want to ask this question from Overview topic in portion Cryptography Overview, TCP/IP and Communication Networks of Cryptograph & Network Security
What is the hamming distance between these 2 codes: 10010010 and 11011001?(a) 3(b) 4(c) 6(d) 2This question was posed to me in quiz.Asked question is from Layers topic in section Cryptography Overview, TCP/IP and Communication Networks of Cryptograph & Network Security
Generate the CRC codeword for the message x^3+1 using the generator polynomial x^3+x+1.(a) 1001101(b) 1001001(c) 1001110(d) 1001111The question was posed to me in an interview for job.My question comes from Layers in chapter Cryptography Overview, TCP/IP and Communication Networks of Cryptograph & Network Security
The Index of Coincidence is(a) 0.065(b) 0.048(c) 0.067(d) 0.044I got this question in class test.This interesting question is from Overview topic in portion Cryptography Overview, TCP/IP and Communication Networks of Cryptograph & Network Security
How many rounds does the AES-192 perform?(a) 10(b) 12(c) 14(d) 16I have been asked this question during an interview.This intriguing question comes from Overview topic in division Cryptography Overview, TCP/IP and Communication Networks of Cryptograph & Network Security
How many keys are used in the ANSI X9.17 PRNG?(a) 3(b) 2(c) 4(d) 6I have been asked this question in quiz.This intriguing question originated from Overview topic in division Cryptography Overview, TCP/IP and Communication Networks of Cryptograph & Network Security
DSL stands for ________(a) Data Storage Line(b) Digital Subscriber Line(c) Data Service Language(d) Data Secure LanguageI had been asked this question during an interview for a job.This key question is from TCP/IP and OSI Reference Model in section Cryptography Overview, TCP/IP and Communication Networks of Cryptograph & Network Security

What is the number of possible 3 x 3 affine cipher transformations ?(a) 168(b) 840(c) 1024(d) 1344This question was addressed to me at a job interview.Origin of the question is Overview in section Cryptography Overview, TCP/IP and Communication Networks of Cryptograph & Network Security

Discussion

No Comment Found

Related InterviewSolutions

Reply to Comment