Name : kaveri zanzane

Roll no :21

Practical No. 9

Aim: Write a program to implement Simple Columnar Transposition Technique

Theory:
L Practical Significance
Cryptography is the art and science of achieving security by encoding messages to make
them non-readable. Simple Columnar Transposition Technique is Transposition
Technique.

IL. Relevant Program Outcomes:

.PO 1 Basic Knowledge: -Apply Knowledge of basic Mathematics, science and
basic engineering to solve the broad based Computer Engineering Problems.
PO2 Discipline Knowledge: - Apply Information Technology Knowledge to solve
broad based Information Technology Related Problems.
PO 3 Experiments & Practice: Plan to perform Experiments and practice and to
use the results to solve Information Technology Related Problems.
PO 4 Engineering Tools: -Apply Appropriate Information Technology related
Techniques/tools with understanding of the limitations.
PO9 Communication-Communicateeffectively in oral and writen form.
PO 10 Life Long Learning - Engage in independent and lifelong learning along
with the technological changes also in the IT and Allied Industry

II. Relevant Course Outcomes

Apply Cryptographic algorithms and protocol to maintain Computer Security.

IV. Practical Outcomes

Write a program to implement Simple Columnar Transposition Technique.

. Theory
Explain Simple Columnar Transposition Technique algorithm along with one

example of your choice.

.Using Simple Columnar Transposition Technique calculate cipher text for given
Plain Text.
Plain text =MIT POLYTECHNIC.
Keyword = Hello

VI. Practical Related Questions

.Explain advantages and disadvantages of Simple Columnar Transposition
Technique.
Using Simple Columnar Transposition Technique calculate cipher text for given
Plain Text.
Plain text = EVERYTHING IS POSSIBLE.
Keyword = MIT POLY
Write a CCPP/Java program to implement Simple Columnar Transposition
Technique. (Add screen shots of program as well as output)
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3 #include <string
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5 using namespace std;
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string
int
getNumberLocation (string keyword, string kywrdNumlistStr) {
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string keywordNumAssign(string keyword){
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string
cout <
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82 string cipherText
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string numLoc getNumberLocation (keyword, kyurdNumListStr);
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cout cipherText;

180 void cipherDecryption(){

161 string msg;
102 cout Enter Cipher Text:
103
184
getline(cin, msg);S
string keywora
105
cout "Enter Keyword:
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107
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110 string kyurdNumL.istStr keywordNumAssign(keyword)
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kywrdNumL ist i[keyword. length()];
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117
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string numloc
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124 d = numloc[k];
125 d d-e';

127 (int j= 0; j numOfRows; j*, i+) {

arr[3][d] = msg[i];
136
131
132
135 cout << endl;
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137
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"
139 cout "Plain Text: << plainText <<
endl;
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141 int main(U
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142 cout "Columnar Transposition Cipher" << endl;
Login 143
cout "1. Encryption \n2. Decryption\nChoose(1, 2):
int choice;
"s
145 cin > choice;
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147
if (choice = 1){
148 cout endl<"Encryption" < endl;
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152
153
cipherDecryption()D
}else
154 cout endl <<
"Wrong Choice" <
endl;
155
156 etur

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157 Activate Windows
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D2016-2022 GDB Online
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Enter Keyword: mitpoly
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