Answer / jitendra

The Wide Mouth Frog protocol is a computer network
authentication protocol designed for use on insecure
networks (the Internet for example). It allows individuals
communicating over a network to prove their identity to
each other while also preventing eavesdropping or replay
attacks, and provides for detection of modification and the
prevention of unauthorized reading

Answer / gtech

The Wide Mouth Frog protocol is a computer network
authentication protocol designed for use on insecure
networks (the Internet for example). It allows individuals
communicating over a network to prove their identity to each
other while also preventing eavesdropping or replay attacks,
and provides for detection of modification and the
prevention of unauthorized reading (cont)........

This can be proven using BAN logic.

The protocol can be specified as follows in security
protocol notation, where Alice is authenticating herself to
Bob using a server S:

A ightarrow S: A,{T_A, K_{AB}, B}_{K_{AS}}

S ightarrow B: {T_S, K_{AB}, A}_{K_{BS}}

Note that to prevent active attacks, some form of
authenticated encryption (or message authentication) must be
used.

The protocol has several problems:

* a global clock is required.
* the server has access to all keys.
* the value of the shared key between A and B is completely
determined by A.
* can replay messages within period when timestamp is valid.
* A is not assured that B exists.
* The protocol is stateful. This is usually undesired
because it requires more functionality and capability from
the server. For example, "S" must be able to deal with
situations in which "B" is unavailable.

------- :)---------

Answer / gtech

The Wide Mouth Frog protocol is a computer network
authentication protocol designed for use on insecure
networks (the Internet for example). It allows individuals
communicating over a network to prove their identity to each
other while also preventing eavesdropping or replay attacks,
and provides for detection of modification and the
prevention of unauthorized reading (cont)........

This can be proven using BAN logic.

The protocol can be specified as follows in security
protocol notation, where Alice is authenticating herself to
Bob using a server S:

A ightarrow S: A,{T_A, K_{AB}, B}_{K_{AS}}

S ightarrow B: {T_S, K_{AB}, A}_{K_{BS}}

Note that to prevent active attacks, some form of
authenticated encryption (or message authentication) must be
used.

The protocol has several problems:

* a global clock is required.
* the server has access to all keys.
* the value of the shared key between A and B is completely
determined by A.
* can replay messages within period when timestamp is valid.
* A is not assured that B exists.
* The protocol is stateful. This is usually undesired
because it requires more functionality and capability from
the server. For example, "S" must be able to deal with
situations in which "B" is unavailable.

------- :)---------

Answer / gtech

The Wide Mouth Frog protocol is a computer network
authentication protocol designed for use on insecure
networks (the Internet for example). It allows individuals
communicating over a network to prove their identity to each
other while also preventing eavesdropping or replay attacks,
and provides for detection of modification and the
prevention of unauthorized reading (cont)........

This can be proven using BAN logic.

The protocol can be specified as follows in security
protocol notation, where Alice is authenticating herself to
Bob using a server S:

A ightarrow S: A,{T_A, K_{AB}, B}_{K_{AS}}

S ightarrow B: {T_S, K_{AB}, A}_{K_{BS}}

Note that to prevent active attacks, some form of
authenticated encryption (or message authentication) must be
used.

The protocol has several problems:

* a global clock is required.
* the server has access to all keys.
* the value of the shared key between A and B is completely
determined by A.
* can replay messages within period when timestamp is valid.
* A is not assured that B exists.
* The protocol is stateful. This is usually undesired
because it requires more functionality and capability from
the server. For example, "S" must be able to deal with
situations in which "B" is unavailable.

------- :)---------

Which frame has a Type field to identify the upper-layer protocol? A.) 802.3 B.) 802.2 C.) 802.5 D.) Ethernet_II

2 Answers  

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Which protocol can do load balancing on unequal cost also?

0 Answers  

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Given the global configuration commands: 'banner motd #' 'Hello #' When would the message be displayed? A.) The message of the day banner shows up before login. B.) The message of the day banner shows up during logoff. C.) These commands are not the right syntax for MOTD. D.) Message of the day banners are displayed upon entering global config mode. E.) Message of the day banners are not possible. F.) The message of the day would be, 'Hello #'

1 Answers  

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Tell me which cable we connect in db-9?

0 Answers  

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If you have configured IPX on a Serial interface, which command would display the IPX network and node address on the Serial 1 interface? A.) show interface B.) show ipx s1 C.) show interface s1 D.) show ipx int serial 1 E.) show ipx int brief

1 Answers  

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What is the default LMI type? A.) Cisco B.) ANSI C.) IETF D.) Q933a

2 Answers  

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Which 2 commands shows the Cisco IOS filename? A.) show IOS B.) show ver C.) show flash D.) show mem E.) show NVRAM

1 Answers  

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On which bas ospf take decision?

0 Answers  

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How the STP determinw that which Port should be Root Port, which port should be Designeted Port , Blocking Port and Forwarding Port in Layer 2 STP topology

7 Answers   Tech Mahindra, Wipro,

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What is the difference between TCP and UDP? A.) TCP is connection-oriented; UDP uses acknowledgements only B.) TCP is connection-oriented; UDP is connectionless C.) Both TCP and UDP are connection-oriented, but only TCP uses windowing D.) TCP and UDP both have sequencing, but UDP is connectionless

2 Answers  

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Identify the command that forces the router to load into ROM mode upon a reload? A.) boot system rom B.) rom boot C.) boot system flash rom D.) boot router rom

1 Answers  

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Identify the command to display the IP host table? A.) show ip hostnames B.) show ip names C.) show hosts D.) show ip hosts

1 Answers  

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