Featured Post

Cryptography or Cryptology + Encryption + Decryption

By -
Cryptography is the study of hiding information. Cryptology is kind of synonym for encryption i.e. the conversion of certain information from readable state to a nonsense state. The information encrypted can be decrypted with (i.e. changing the nonsense information into a sensible information) a key which is set by the person during time of encryption.

Basic terms of cryptography:

Plain-text and Cipher-text
The plaintext is a input data to the encryption algorithm and encrypted using cipher. The text after processing than gets converted to a ciphertext which can be decrypted using cipher (or cypher are the pair of algorithms which help in encryption and decryption)  for it. The ciphertext cananot be read by a human or computer unless the the cipher is available with them to decrypt it.

Decryption
It is a process by which the ciphertext is made to covert to a plaintext.

Cryptanalysis
It is the method of studying the encrypted nonsense data such that the cipher which was applied on it to encrypt it can be detected and the data can be produced into readable form.






Comments

Post a Comment

Let's discuss and learn more

Related Posts

Consultant - Understanding the Job

By -
Image
What does the consultant do? Solve Business Problem. But, it is very deep term. Management Consultant is content ambassador. They are the bridge between complex client context and massive knowledge with experts. They are also responsible for the network stream. In the case of cement plant - should the client close the plant? As a consultant from McKinsey, I need to find it. As a consultant, you analyze a problem and break it into smaller parts. So, for the above problem, we would try exploring ways to improve sales and cut costs. Ex: To cut costs may be logistics is the biggest factor, so as a consultant we talk to logistic partners of the company. Duties of a consultant as a content ambassador? (Very Important) -           Gather content - research internal databases, research internet, study reports by independent parties, interview experts, interview clients, interview customers, mystery shopping, data analyzing, surveying. -           To create Final product (
Read More>>  

IPSC 2010

By -
Image
Roughly a thousand teams from all around the globe have already registered for IPSC 2010 , which takes place on Sunday, June 6. $3,000 in prize money (courtesy of Facebook, Inc.) is waiting for the best few of them. Participation is free and the contest is open to everybody. IPSC is what you could call a programming contest with a twist. Over the years, the problems always push the boundary and go beyond the usual stuff you see in a programming contest. For example, in past few years the contestants have had to understand how arithmetic in computers differs from that in mathematics, produce a sequence of cache requests that generates many page faults, solve a logic puzzle given as a Flash game, and recognize images to evaluate a rock-paper-scissors game.
Read More>>  

Microsoft Open Source F# Don Syme...

By -
Image
Don Syme has announced the release of the F# compiler source code as a code drop under Apache 2.0. He wrote, 'The F# PowerPack now includes libraries, tools and the compiler/library source code drops. I'd like to take a moment to explain the F# team's approach to this. Firstly, the source for the F# compiler in our MSI/CTP releases has been available for some time, in the releases themselves, so in that sense there's not much new in this release. Secondly, we've always made sure we have a free download binary release of F# available, and will continue to do that, and that should still be the main way you "get" a release of F#. However, we've long discussed making compiler+library source available in a different way. After some discussion, we've decided to do this via a "code drop" model, where we make available versions of the compiler+library code logically matching each release of the F# language itself. Links: http://ww
Read More>>  

Wikipedia Explains Today's Global Outage

By -
The Wikimedia Tech Blog has a post explaining why many users were unable to reach Wikimedia sites due to DNS resolution failure. The article states, 'Due to an overheating problem in our European data center many of our servers turned off to protect themselves. As this impacted all Wikipedia and other projects access from European users, we were forced to move all user traffic to our Florida cluster, for which we have a standard quick failover procedure in place, that changes our DNS entries. However, shortly after we did this failover switch, it turned out that this failover mechanism was now broken, causing the DNS resolution of Wikimedia sites to stop working globally. This problem was quickly resolved, but unfortunately it may take up to an hour before access is restored for everyone, due to caching effects.
Read More>>  

Cloud Computing??...need an answer read below..

By -
Image
In this modern world of technology we keep hearing frequently the word CLOUD COMPUTING which is difficult for a layman to understand...so next time you can refer the layman about this article on CLOUD COMPUTING.... >1. What is Cloud Computing? -A. Let’s take a simple example to understand it in a practical manner. We access various email services on the internet such as Yahoo mail, Gmail, Hotmail for sending or receiving mails. For using all these services we don't require any software (except the browser) and nor a server. The only thing we require is an internet connection. Now the cloud in this is the Server which is at the company's place providing the service and the email management software is installed at that server only. So we are enjoying all the services and benefits with a click of a button. So this is how we can phrase the above example as "If you only need milk, would you buy a cow?” Therefore, the Cloud Computing can be explained as the user only needs
Read More>>