User Account

All Pages

security, Computer Engineering

Assignment Help:
We now consider the relation between passwords and key size. For this purpose
consider a cryptosystem where the user enters a key in the form of a password.
Assume a password consisting of 8 letters, where each letter is encoded by the
ASCII scheme (7 bits per character, i.e., 128 possible characters). What is the
size of the key space which can be constructed by such passwords?
What is the corresponding key length in bits?
Assume that most users use only the 26 lowercase letters from the alphabet in-
stead of the full 7 bits of the ASCII-encoding. What is the corresponding key
length in bits in this case?
At least how many characters are required for a password in order to generate a
ey length of 128 bits in case of letters consisting of
a. 7-bit characters?
b. 26 lowercase letters from the alphabet?

Related Discussions:- security

Define side tone is essential in telephone communication, A certain amount ...

A certain amount of side tone is essential in telephone communication. Ans: It is true that a specific amount of side tone is necessary in telephone communication.

Data type, Define data type and abstract data type comment upon the signifi...

Define data type and abstract data type comment upon the significant of both

Determine the use of loop instruction, Q. Determine the use of LOOP instruc...

Q. Determine the use of LOOP instruction? Program: This program prints the alphabets (A-Z) ; Register used: AX, CX, DX CODE SEGMENT ASSUME: CS: CODE.     MAINP:

Describe the uses of credit cards and smart cards, Credit cards and smart c...

Credit cards and smart cards Credit cards comprise a magnetic stripe on the back made up of iron-based particles in a plastic film. Stripe is split up into 3 tracks which a

Describe the properties of attributes and operations, Describe the properti...

Describe the properties of Attributesand operations Attributes are named slots for data values that belong to the class. Previously we have studied in MCS-024, different o

Your worksheet and organizing the data, You presently work for an automotiv...

You presently work for an automotive parts supply store. Your company is growing, and is considering expansion. The company presently has three locations (North, South, and Central

Explain the different sub-functions of process scheduling, Explain the diff...

Explain the different sub-functions of Process Scheduling. Process scheduling contains the subsequent sub-functions: 1. Scheduling: Chooses the process to be executed next

I printout the formulas in an excel spreadsheet, How can I printout the for...

How can I printout the formulas in an Excel spreadsheet - rather than the results? Ans) The trick is to change the way Excel shows the worksheet before you choose to print. Ch

What are the steps followed in testing, What are the steps followed in test...

What are the steps followed in testing? i. Unit testing - The individual components are tested in this method of testing. ii. Module testing - Related collection of independ

Define usb, Define USB. The Universal Serial Bus(USB) is an industry st...

Define USB. The Universal Serial Bus(USB) is an industry standard developed to give two speed of operation known as low-speed and full-speed. They provide simple, low cost and

Write Your Message!

Captcha
Order Assignment

Featured Services

Order Now

Popular Subjects

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +91-977-207-8620

Phone: +91-977-207-8620

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

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