2. (a) Given the RSA public key (3,70747) and private key (46811,70747).• Encrypt the letter 'z2' using its ASCII value.• Decrypt the result from the subtask above and generate the original text.• Encrypt the word Cyber' two characters at a time padding with a space.• Decrypt the following three blocks 14520 66071 27623. The blocks are the encryption of afive-letter word, encrypted two characters at a time and padded with a space. Recover theword.• The blocks are the encryption of a five letter word, encrypted two characters at a time andpadded with a space. Recover the word.• Determine the maximum block size, in bits, that this modulus can encrypt and decrypt.

Answered: - Encrypt the letter '2' using its…

- Encrypt the letter '2' using its ASCII value. • Decrypt the result from the subtask above and generate the original text.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

2. (a) Given the RSA public key (3,70747) and private key (46811,70747).
• Encrypt the letter 'z2' using its ASCII value.
• Decrypt the result from the subtask above and generate the original text.
• Encrypt the word Cyber' two characters at a time padding with a space.
• Decrypt the following three blocks 14520 66071 27623. The blocks are the encryption of a
five-letter word, encrypted two characters at a time and padded with a space. Recover the
word.
• The blocks are the encryption of a five letter word, encrypted two characters at a time and
padded with a space. Recover the word.
• Determine the maximum block size, in bits, that this modulus can encrypt and decrypt.

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