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Q1. S.no frame source SSL count
1 35 client 1
2 37 server 1
3 39 server 2
4 41 client 3
5 42 server 2
6 43 client 1
7 45 server 1
8 46 server 1
Q2. Content Type = 1 byte
SSL Version = 2 bytes
Length = 2 bytes
Q3. The value of the ClientHello Record is 1.
Q4. The ClientHello Record contains a Challenge and it is: 66 df 78 4c 04 8c d6 05 35 dc 44 89 89 46 99 09.
Q5. Yes, the Client displays its supported cyber suites. The first listed suite is TLS_RSA. The symmetric , public and hash algorithms are RC4, 128 and MD5, respectively.
Q6. The chosen suite is TLS_RSA, the algorithms are RC4, 128 and MD5.
Q7. Yes, this record does include a nonce listed under Random. The nonce is 32 bits long, 28 for data and 4 for the time. The purpose is to prevent a replay attack.
Q8. Yes it does. It provides a unique persistent identifier for the SSL session which is sent in the clear. The client may resume the same session later by using the server provided session ID when it sends the ClientHello.
Q9. The Certificate exists in a frame that follows the ServerHello. Because the size of the certificate(2684 bytes) is larger than the maximum payload size of an Ethernet Frame (1500 bytes), the certificate must be contained in multiple frames.
Q10. The Client Key record encrypts the Pre-Master Secret (PMS) with the server’s public key. This is used to verify that both parties completely understand the encryption method that will be used in the further communication, which will all be encrypted. The encrypted secret is 56 bytes.
Q11. The Change Cipher Spec record tells the other party what Cipher version to use for future encrypted data. The length is 1 byte.
Q12. The client takes the PMS and encrypts it using the cipher agreement from the previous messages.
Q13. The server also sends the change cipher record and encrypted handshake. The PMS encryption should return the same handshake message, so there is no difference other than the clients Key Exchange Record.
Q14. The application data is encrypted according to the server’s agreed on encryption method. Every message between client and server is accompanied with a Message Authentication Code (MAC). Wireshark doesn’t distinguish this from the encrypted data.
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