6 In a trust chain what type of encryption is used 7 Is bit

6. In a trust chain, what type of encryption is used?

7. Is bit strength the most important part of an encryption algorithm, why?

8. What is forward secrecy and how does it relate to Diffie–Hellman key exchange?

9. What is a digest algorithm, and why is SHA256 preferred over MD5 and SHA1 for SSL certificates?

10. What are SSL 3, TLS 1.1, TLS 1.2 all examples of? Why is SSL 3 no longer used?

Solution

7. Yes, bit strength in encryption is important. The encryption strength of the safe connection may be 40, 56, 128, or 256 bit. High-level encryption, at 128 to 256 bit means that the data secretely encoded during an SSL session is at the strongest level available and almost impossible to break

8. Forward secrecy: Forward secrecy is a property of protected communication protocols in which cooperation of long-term keys does not compromise past session keys. Forward secrecy protects past sessions beside future compromises of secret keys or passwords. If forward secrecy is used, encrypted communications and sessions recorded in the past cannot be recovered.

10. SSL 3, TLS 1.1, TLS 1.2 all examples of transport layer SECURITY.