16.5.6. Shortcomings of RSA

Try these first

1. 1.

   What does RSA stand for?

   Hint

   Consider the names of the inventors.

2. 2.

   What is meant by deterministic encryption?

   Hint

   Think about whether every encryption produces unique outputs.

3. 3.

   What does RSA stand for?

   • Rivest-Sariman-Ankeman
   • Rivest-Shamir-Adelman
   • Rivest-Shariman-Adelman

   Hint

   Look for the names of the three creators.

4. 4.

   True or False: If the same plaintext is encrypted multiple times with RSA, it results in different ciphertexts.

   • True
   • False

   Hint

   Consider what deterministic means.

5. 5.

   Analyze a scenario where an organization uses deterministic RSA encryption without any padding to secure confidential emails. What potential vulnerabilities could arise, and how can they be addressed?

   Hint

   Consider how patterns in identifiable messages might prompt malicious actions.

6. 6.

   Suppose an organization insists on using RSA without any security enhancements. Discuss how an attacker could approach cracking the encryption based solely on the observed patterns.

   Hint

   Think about how consistently similar messages are phrased in communication.