NEET Exam > NEET Questions > Encrypt the plain text"hopeless" using playfa...
Start Learning for Free
Encrypt the plain text"hopeless" using playfair cipher. Use Z and P as dummy character ( type the cipher text in capital letters)?
Most Upvoted Answer
Encrypt the plain text"hopeless" using playfair cipher. Use Z and P as...
Playfair Cipher:
The Playfair cipher is a symmetric encryption technique that uses a 5x5 grid of letters to encrypt and decrypt messages. It is named after Lord Playfair, who promoted its use in the military. The cipher works by dividing the message into pairs of letters and then encrypting each pair based on their positions in the grid.
Key Steps:
1. Generate the Playfair cipher grid.
2. Divide the plaintext into pairs of letters.
3. Encrypt each pair using the Playfair cipher grid.
Generating the Playfair Cipher Grid:
To generate the Playfair cipher grid, we start with a keyword and add the remaining letters of the alphabet (excluding duplicates) in order. In this case, the keyword is "HOPELESS".
The Playfair cipher grid would be:
H O P E L
S A B C D
F G I K M
N Q R T U
V W X Y Z
Dividing the Plaintext:
The plaintext "hopeless" is divided into pairs of letters: "HO", "PE", "LE", "SS".
Encrypting Using the Playfair Cipher Grid:
We encrypt each pair of letters using the Playfair cipher grid.
1. "HO":
- The letter "H" is located at row 1, column 1.
- The letter "O" is located at row 1, column 2.
- We encrypt the pair by using the following rules:
- If the letters are in the same row, we replace each letter with the letter to its right (circularly).
- If the letters are in the same column, we replace each letter with the letter below it (circularly).
- If the letters are in different rows and columns, we form a rectangle and replace each letter with the letter in the opposite corner of the rectangle.
- Therefore, "HO" would be encrypted as "PL".
2. "PE":
- The letter "P" is located at row 1, column 3.
- The letter "E" is located at row 1, column 4.
- Using the same rules as above, "PE" would be encrypted as "BX".
3. "LE":
- The letter "L" is located at row 1, column 5.
- The letter "E" is located at row 1, column 4.
- "LE" would be encrypted as "EM".
4. "SS":
- The letter "S" is located at row 2, column 1.
- The letter "S" is located at row 2, column 1.
- Since the letters are the same, we insert a dummy character to break the repetition rule.
- "SS" would be encrypted as "SP".
Final Encrypted Text:
After encrypting each pair, the plaintext "hopeless" would be encrypted as "PLBXEMSP".
The Playfair cipher is a symmetric encryption technique that uses a 5x5 grid of letters to encrypt and decrypt messages. It is named after Lord Playfair, who promoted its use in the military. The cipher works by dividing the message into pairs of letters and then encrypting each pair based on their positions in the grid.
Key Steps:
1. Generate the Playfair cipher grid.
2. Divide the plaintext into pairs of letters.
3. Encrypt each pair using the Playfair cipher grid.
Generating the Playfair Cipher Grid:
To generate the Playfair cipher grid, we start with a keyword and add the remaining letters of the alphabet (excluding duplicates) in order. In this case, the keyword is "HOPELESS".
The Playfair cipher grid would be:
H O P E L
S A B C D
F G I K M
N Q R T U
V W X Y Z
Dividing the Plaintext:
The plaintext "hopeless" is divided into pairs of letters: "HO", "PE", "LE", "SS".
Encrypting Using the Playfair Cipher Grid:
We encrypt each pair of letters using the Playfair cipher grid.
1. "HO":
- The letter "H" is located at row 1, column 1.
- The letter "O" is located at row 1, column 2.
- We encrypt the pair by using the following rules:
- If the letters are in the same row, we replace each letter with the letter to its right (circularly).
- If the letters are in the same column, we replace each letter with the letter below it (circularly).
- If the letters are in different rows and columns, we form a rectangle and replace each letter with the letter in the opposite corner of the rectangle.
- Therefore, "HO" would be encrypted as "PL".
2. "PE":
- The letter "P" is located at row 1, column 3.
- The letter "E" is located at row 1, column 4.
- Using the same rules as above, "PE" would be encrypted as "BX".
3. "LE":
- The letter "L" is located at row 1, column 5.
- The letter "E" is located at row 1, column 4.
- "LE" would be encrypted as "EM".
4. "SS":
- The letter "S" is located at row 2, column 1.
- The letter "S" is located at row 2, column 1.
- Since the letters are the same, we insert a dummy character to break the repetition rule.
- "SS" would be encrypted as "SP".
Final Encrypted Text:
After encrypting each pair, the plaintext "hopeless" would be encrypted as "PLBXEMSP".
|
Explore Courses for NEET exam
|
|
Similar NEET Doubts
Top Courses for NEETView all
Encrypt the plain text"hopeless" using playfair cipher. Use Z and P as dummy character ( type the cipher text in capital letters)?
Question Description
Encrypt the plain text"hopeless" using playfair cipher. Use Z and P as dummy character ( type the cipher text in capital letters)? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Encrypt the plain text"hopeless" using playfair cipher. Use Z and P as dummy character ( type the cipher text in capital letters)? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Encrypt the plain text"hopeless" using playfair cipher. Use Z and P as dummy character ( type the cipher text in capital letters)?.
Encrypt the plain text"hopeless" using playfair cipher. Use Z and P as dummy character ( type the cipher text in capital letters)? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Encrypt the plain text"hopeless" using playfair cipher. Use Z and P as dummy character ( type the cipher text in capital letters)? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Encrypt the plain text"hopeless" using playfair cipher. Use Z and P as dummy character ( type the cipher text in capital letters)?.
Solutions for Encrypt the plain text"hopeless" using playfair cipher. Use Z and P as dummy character ( type the cipher text in capital letters)? in English & in Hindi are available as part of our courses for NEET.
Download more important topics, notes, lectures and mock test series for NEET Exam by signing up for free.
Here you can find the meaning of Encrypt the plain text"hopeless" using playfair cipher. Use Z and P as dummy character ( type the cipher text in capital letters)? defined & explained in the simplest way possible. Besides giving the explanation of
Encrypt the plain text"hopeless" using playfair cipher. Use Z and P as dummy character ( type the cipher text in capital letters)?, a detailed solution for Encrypt the plain text"hopeless" using playfair cipher. Use Z and P as dummy character ( type the cipher text in capital letters)? has been provided alongside types of Encrypt the plain text"hopeless" using playfair cipher. Use Z and P as dummy character ( type the cipher text in capital letters)? theory, EduRev gives you an
ample number of questions to practice Encrypt the plain text"hopeless" using playfair cipher. Use Z and P as dummy character ( type the cipher text in capital letters)? tests, examples and also practice NEET tests.
|
|
Explore Courses for NEET exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup