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Keep Your Information Secure

Encryption is the process of storingblock cipher adopted as an encryption
information in a way so as to make itstandard by the US government. Rijndael is
unreadable without special knowledge.used worldwide and analysed extensively.
Encryption has been used to protectRijndael became effective as a standard May
communications and secure information for26, 2002. As of 2006, Rijndael is one of the
centuries, but only organizations andmost popular algorithms used in symmetric key
individuals with an great need for secrecycryptography.
had  made  use  of  it.
The cipher was developed by two Belgian
Julius Caeser is the first known user of ancryptographers, Joan Daemen and Vincent
encryption system. His system was known asRijmen, from whose surnames the term Rijndael
Caeser's keys. He wanted to send messages,was conceived. The cipher was submitted to
but did not want the messengers to read them.the AES selection process, stating that
To prevent this, he used an alphabeticRijndael was designed based on the following
substitution in his messages; replacing "A"three  criteria:
with "D", "B" with "E", "C with "F", etc. The
recipient of the message was aware of the1)  Resistance  against  all  known  attacks
secret of the encryption, so for him it was
very straightforward to decipher the message.2) Speed and code compactness on a wide range
of  platforms
An example of a sentence using Caeser's keys
is below. It is not difficult to see the3)  Design  simplicity
pattern.
Rijndael was evaluated by the National
Plain Text: THE QUICK BROWN FOX JUMPED OVERSecurity Agency (NSA), based on its security,
THE  LAZY  DOGits cost and its algorithm and implementation
characteristics. There were several candidate
Cipher Text: WKH TXLFN EURZQ IRA MXPSHG RYHUalgorithms, but Rijndael was selected as it
WKH  ODCB  GRJhad the best combination of security,
performance, efficiency, ease of
Obviously, this method of encryption is notimplementation and flexibility. NSA stated
very secure. Though encryption has beenthat Rijndael was secure enough for US
around for thousands of years, only in theGovernment non-classified data. In June 2003,
last century have we seen great advancementthe US Government announced that Rijndael may
in  the  field  of  cryptography.be  used  for  classified  information.
The invention of computers changed the faceIt is the mark of good quality software if it
of cryptography completely. Computers wereuses the Rijndael encryption method to secure
able to calculate much faster than the peopleinformation.
who worked on them, and suddenly an encrypted
message could be broken within a few minutesOne such program is Info Manager. PortaWhiz
on a normal PC, and consequesntly the messageInfo Manager uses the Rijndael encrytion
was no longer secure. In response to the needmethod to keep your information secure. The
for new and secure methods of encryption, theprogram gives you one place on your Pocket PC
cryptographic world flourished in the latteryour desktop where you can organize and store
part of the 20th century. In the mid-1970s,all of your important information into neat
strong encryption emerged from the preservefolders. This means that all your important
of secretive government agencies into theinformation is stored together, in neat and
public.tidy bundles; which are easy to retrieve at
any time you require. Only the bearer of the
In cryptography, the Advanced Encryptionadministrator password will then possibly be
Standard (AES); also known as Rijndael, is aable to access it.



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