Algorithm to Auxiliary methods for the lockstep protocol. in: message m; set of recipients R
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- make Algorithm to Auxiliary methods for the lockstep protocol.in: set of senders Sout: set of messages MPlease solve it correctly and please provide explanation of your answers. A PC and a Web Server are communicating over a TCP connection. The PC had started the three way handshake with the initial sequence number of 3069 . The Web Server's initial sequence number is 4830 . The window size of the PC is 815 bytes and the window size of the Web Server is 463 bytes. Using the third TCP handshake ack segment the PC sends the http request of the size 396 bytes to the Web Server. Then the Web Server answers with 3 segments containing the requested data. The first segment size is 42 bytes and the second segment size is 276 bytes and the third segment size is 146 bytes respectively. The PC receives all three segments within the timer. But unfortunately the second segment was corrupted. So the PC immediately sends an acknowledgement segment. Assume that the PC uses Selective Repeat/Reject ARQ. (d) What will be the window size of PC A after receiving only the first segment from webserver? (e)…Please solve it correctly and please provide explanation of your answers. A PC and a Web Server are communicating over a TCP connection. The PC had started the three way handshake with the initial sequence number of 3069 . The Web Server's initial sequence number is 4830 . The window size of the PC is 815 bytes and the window size of the Web Server is 463 bytes. Using the third TCP handshake ack segment the PC sends the http request of the size 396 bytes to the Web Server. Then the Web Server answers with 3 segments containing the requested data. The first segment size is 42 bytes and the second segment size is 276 bytes and the third segment size is 146 bytes respectively. The PC receives all three segments within the timer. But unfortunately the second segment was corrupted. So the PC immediately sends an acknowledgement segment. Assume that the PC uses Selective Repeat/Reject ARQ. (a) What will be the sequence number of the third TCP handshake signal send from PC to webserver?…
- For the Zhou-Gollman non-repudiation protocol discussed in the lecture on “Non-Repudiationand Anonymity Protocols”, which one of the following statements is false:The function f(R, K) = P(S(E(R XOR K)) of the DES cryptographic protocol manipulates different sizes of bit-strings. The bit-string sizes of P-SEK in this order are: 32-48-48-32 32-32-48 48 48-48-32-32 64-32-32 48 64 48 32-64 SAVENon-Repudiation and Anonymity ProtocolsFor the Zhou-Gollman non-repudiation protocol discussed in the lecture on “Non-Repudiation and Anonymity Protocols”, which one of the following statements is false:a) At time point 4, both A and B can produce evidence to prove that they received Kb) At time point 2, both A and B can produce evidence to prove that they received a signed message from the other partyc) At time point 0, S cannot prove anythingd) At time point 3, B cannot produce evidence to prove that A has access to key Ke) At time point 1, A can prove that B is alivef) At time point 4, S can prove that A is aliveg) At time point 3, S can produce evidence that that A has access to key Kh) At time point 0, A is not alivei) At time point 2, A can produce evidence to prove that B is alivej) At time point 4, the protocol terminatesExplain your answer below:
- Design a cryptographic solution for implementing the dinning cryptographers protocol. You should consider the following: The secret messages shared between any two agents in the protocol are communicated over public channels only. The announcements made by each agent must be traceable in a trustworthy way to that agent. Your solution should be a new protocol that addresses the above two requirements.Computer Science Write TCP Send/Receive methods for text-based communication which uses the “$>!!$>” as the boundary pattern for messages. You can use Helper classes to ease your pseudo code.In an RPC-like protocol, where numerous requests can be active at the same time and responses can be given in any sequence, the following is possible: Pretend requests are sequentially numbered, and that ACK[N] confirms the receipt of reply[N]. Should the number of ACKs be cumulative? If not, what should happen in the event that an ACK is not received?
- 1. It is a protocol for encapsulating data packets that use one routing protocol inside the packets of another protocol. 2. It is a hash function that has been deprecated for uses other than as a non-cryptographic checksum to verify data integrity and detect unintentional data corruption. 3. An algorithm which is a pseudorandom function family in that it can easily generate arbitrary portions of the keystream without having to start from the beginning. 4. What is the most popular and widely implemented flavor of STP? 5. An algorithm that comprises of a series of linked operations, some of which involve replacing inputs by specific outputs (substitutions) and others involve shuffling bits around (permutations). 6. It is calculated using port cost values associated with port speeds for each switch port along a given path in STP 7. A proprietary architecture that authenticates users and devices using the identity-enabled network approach, and enables the government workforce to connect…In what situations is it beneficial to set up a static route?9.Correct expression tor UDP user datagram length is length of UDP = length of IP- length of IP header's length of UDP= length of UDP-length of UDP header's length of UDP = length of IP+length of IP header's length of UDP = length of UDP+length of UDP header's.