Cipher password guess-cryptography, Computer Networking

Assignment Help:

a. If a password to a cipher is exactly 8 characters long, and each character can be selected from [0-9], [a-z], and [A-Z], how many different passwords are possible?

b. Suppose a system requires passwords be 8 characters long, include at least one capital letter, at least one digit and at least one character from the set of 5 special characters { !,#,%,&,*} . What advantage does this provide an attacker who is trying to guess a password?

Related Discussions:- Cipher password guess-cryptography

Explain transparent bridges and learning bridges, Transparent Bridges & Lea...

Transparent Bridges & Learning Bridges - Builds table by examining destination as well as source address of each packet it receives - Learning bridges - If address is not

What is the structure of ip multicast address, Question : (a) Several ...

Question : (a) Several techniques are now available for users to connect to the Internet. (i) A modem is commonly used to dial up to the Internet. Why is a modem needed fo

What is the purpose of a default route, A default route is used if there is...

A default route is used if there is not a particular entry in the routing table for the destination.

Effectiveness of data communications, Efficiency of a data communications s...

Efficiency of a data communications system depends on three fundamental characteristics - Delivery: The system should deliver data to the correct destination. Data should be r

Describe rip timers in detail, RIP timers

RIP timers

Input port - network layer and routing , Input Port The input ports ...

Input Port The input ports line termination functions and data link processing implement the physical and data link layer associated with an individual input link to

Explain the types of security threats, Q. Explain the types of Security Thr...

Q. Explain the types of Security Threats? (a) Normal Flow (b) Interruption: An asset of a system develops into unavailable or unusable. (c) Interception: A few unaut

Developing prototypes - digital receipts, Increasingly it is the quality of...

Increasingly it is the quality of the interface of mobile phones that are giving competitors the edge. Users not only make selections based on cost but also functionality and cert

What are the key design issues of a computer network, What are the key desi...

What are the key design issues of a computer Network? a. Connectivity b. Cost-effective Resource Sharing c. Support for common Services d. Performance

Describe the architecture of the tcp/ip protocol suite, Problem 1 Descr...

Problem 1 Describe the architecture of the TCP/IP protocol suite Problem 2 Describe the principle of operation of REXEC protocol Problem 3 Describe the concept

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages