Question: The following ciphertext was received. The plaintext was permuted using permutation (34152) and substitution. Substitute character by character +3 (A Æ D, etc). The plain text after decryption is: Cipher text :PDLJDLXHVQC
Answer:
MCQ: The following ciphertext was received. The plaintext was permuted using permutation (34152) and substitution. Substitute character by character +3 (A Æ D, etc). The plain text after decryption is: Cipher text :PDLJDLXHVQC
Correct Answer:
A. MAIGAIUESNZ
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Related Questions
- 1. By symmetric key encryption we mean
- 2. The Acronym DES stands for
- 3. DES works by using
- 4. DES </br> (i) is a symmetric key encryption method </br> (ii) guarantees absolute security </br> (iii) is implementable as hardware VLSI chip </br> (iv) is a public key encryption method </br>
- 5. DES using 56 bit keys
- 6. Triple DES uses
- 7. ripple DES
- 8. Triple DES
- 9. Public key encryption method is a system
- 10. Public key system is useful because
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