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

Causes of failures, CAUSES OF FAILURES Every failure has a well-define...

CAUSES OF FAILURES Every failure has a well-defined cause.  Any system or device has an inherent strength or capacity to resist failures. This depends on design, material, man

Explain fiber-optics cable, Explain Fiber-Optics cable. A cable with ce...

Explain Fiber-Optics cable. A cable with central glass tube covered with protective shield which transmit data using photons is fiber optics cable. These cables transmit data t

Maximum packet lifetime, Take the maximum packet lifetime, T.  It's stated ...

Take the maximum packet lifetime, T.  It's stated that T must be big enough to make sure the packet and its ACK have vanished.  Why do we have to have the ACK?

Which statement is true regarding half duplex, Half duplex is analogous to ...

Half duplex is analogous to a one a lane bridge, it can handle traffic in both directions but no at the similar time.

Dijkstra algorithms - network layer and routing , Dijkstra Algorithms T...

Dijkstra Algorithms To calculate its  routing  table  each router applies an algorithm  called  the dijkstra algorithm to its  state database. The dijkstra algorithm  calculate

Show the ip address representation, Q. Show the IP Address Representation? ...

Q. Show the IP Address Representation? IP Addressing IP Address Representation Binary notation - IP address is displayed as 32 bits Dotted-decimal notation -

Explain the term - carrier sense multiple access, What is use of Carrier se...

What is use of Carrier sense multiple access Carrier sense multiple access with collision detection (CSMA/CD) is a form of medium access control in which a station listens to

Distance vector and link-state protocol, What's the difference among distan...

What's the difference among distance vector and link-state protocol?

State the congestion avoidance process, State the congestion avoidance proc...

State the congestion avoidance process Notifies the source that congestion avoidance process should be initiated where applicable for traffic in the opposite direction of the r

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