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

Resolution of domain name system, Q. Resolution of domain name system? ...

Q. Resolution of domain name system? - Mapping a name to an address or else an address to a name - Resolver is a DNS client used by an address to provide mapping - In re

Summary of osi model, Q. Summary of osi model? - There was no standard ...

Q. Summary of osi model? - There was no standard for networks in the early period and as a result it was difficult for networks to communicate with each other. - The ISO (In

What is a database server, What is a Database Server? With a database s...

What is a Database Server? With a database server, the client passes SQL requests as messages to the database server. The results of every SQL command are returned over the net

What are the trends in network security, Q. What are the trends in Network ...

Q. What are the trends in Network Security ? Trends in Network Security Improved vigilance for virus infections Continual maturation of firewall technologies

Recognize the definition of demarcation, Demarcation is the point in which ...

Demarcation is the point in which responsibility changes hands.

Netware protocol provides link-state routing, Which NetWare protocol provid...

Which NetWare protocol provides link-state routing? Ans) NetWare Link Services Protocol (NLSP) gives link-state routing. SAP (Service Advertisement Protocol) advertises network

What do you mean by auto-reconfiguration, What do you mean by Beaconing an...

What do you mean by Beaconing and Auto-Reconfiguration? When a station does not receive a message from its nearest active upstream neighbor, it sends out a warning, otherwise c

What is microwave, What is Microwave? Microwaves have been used in data...

What is Microwave? Microwaves have been used in data communications. Microwave has a higher frequency than radio waves and thus can handle larger amounts of data.

Twisted pair cable - computer network, Twisted Pair Cable Twisted pair...

Twisted Pair Cable Twisted pair cable  consists of two insulated copper  wires  each  about 1 mm  thick arranged in a regular spiral  pattern. The wires  are twisted together

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd