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

What are the advantages of adaptive routing, What are the Advantages of ada...

What are the Advantages of adaptive routing  (1) An adaptive routing method can improve performance, as realised by the network user. (2) An adaptive routing method can aid

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 is a pseudo TTY, What is a pseudo tty? A pseudo tty or false termi...

What is a pseudo tty? A pseudo tty or false terminal enables external machines to connect by Telnet or rlogin. Without a pseudo tty, no connection can take place.

Deteemine token bus of 802.3, Token Bus Physical order of stations ...

Token Bus Physical order of stations doesn't matter Line is broadcast medium "Send" token by addressing neighbour Provisions for deleting, adding stations

Describe the term - certification authority, Describe the term - Certificat...

Describe the term - Certification Authority The certification is most easily implemented with a custom solution combined with a server, called the Certification Authority (CA).

Show the drawbacks of go-back-N, Q. Show the Drawbacks of Go-back-N? D...

Q. Show the Drawbacks of Go-back-N? Drawbacks of Go-back- N - Inefficient - Every out of order received packets are discarded (receiver side is simplified) - This

Difference among flow control and error control, What is the difference am...

What is the difference among  flow control and error control?    Ans) Flow control: adjust and confirm data flow rate for successful transmission. Error Control: a method to

Explain about traditional modems, Q. Explain about Traditional Modems? ...

Q. Explain about Traditional Modems? - Subsequent to modulation by the modem an analog signal reaches the telephone company switching station where it sampled and digitized to

Command to view the configuration-register value, Recognize the command to ...

Recognize the command to view the configuration-register value Ans) show version is the command to view the configuration-register value

What is boundary level masking, Q. What is Boundary Level Masking? ...

Q. What is Boundary Level Masking? If mask numbers are either 255 or 0: Bytes in the IP address that correspond to 255 in the mask will be repeated in the subnet ma

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