Hardware Secrets
Home | Camera | Case | CE | Cooling | CPU | Input | Memory | Mobile | Motherboard | Networking | Power | Storage | Video | Other
First Look
Gabriel’s Blog
Main Menu
About Us
Awarded Products
Manufacturer Finder
RSS Feed
Test Your Skills
Subscribe today!

Home » Dictionary » Chipsets

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Numeric

Author: Gabriel Torres Last Updated: January 6, 2006
Category: Chipsets

Random Number Generator

When a program generates a random number, this number is not really random (that is why program-generated random numbers are called pseudo-random). This occurs because the computer, as an ”exact“ device, cannot ”create“ a number out of the blue. To generate a random number, the computer uses its real time clock.

For the majority of users this ”problem“ isn’t a big deal, since the numbers generated that way are random enough for almost all applications. But when it comes to encryption keys this can lead to a security problem.

A hacker, knowing more or less the date and time that a given key was generated, is capable of reducing a lot the number of tries he (or she) has to perform to reproduce it.

In systems where important encryption keys are generated it is necessary to use a separated circuit called Random Number Generator (RNG), which generates keys without using the computer’s real time clock.

Related Terms:

Print Version | Send to Friend | Bookmark this Term

There are 369 terms in our database.

RSSLatest Content
ASUS X99-DELUXE Motherboard
September 30, 2014 - 1:07 AM
MSI GT70 2PE Dominator Pro Laptop Review
September 25, 2014 - 1:15 AM
Sony Xperia T3 Smartphone Review
September 22, 2014 - 1:50 AM
ASRock D1800B-ITX Motherboard
September 18, 2014 - 3:20 AM
PNY XLR8 120 GiB SSD Review
September 10, 2014 - 3:30 PM
ASRock D1800M Motherboard
September 8, 2014 - 1:37 PM
Samsung Chromebook Review
September 2, 2014 - 6:30 PM

2004-14, Hardware Secrets, LLC. All rights reserved.
Advertising | Legal Information | Privacy Policy
All times are Pacific Standard Time (PST, GMT -08:00)