Easy Way to Make Secret Codes, for Kids

The Work Of A Nation. The Center of Intelligence.

Kids' Zone
Various algorithms are used in the internet market depending upon the need. Any computer file can be encrypted with RSA. Each person who wants to use asymmetric cryptography uses a secret key number, and a different number, a "public key" that they can tell everyone. The one-time pad is special because, if it is used correctly, it is impossible to crack. This process is called encryption or enciphering. At most, when all is right in the world, the user instructs a computer program to encrypt or sign or decrypt and authenticate, or

The 8 secret codes for kids include:

What is .......... Encryption?

Write your responses on a separate piece of paper. The red balloon will launch at noon tomorrow. The following links will provide you with an assortment of sample encryption techniques. Be sure to explore them all! If you hold up to a mirror something with writing, the writing looks reversed.

You can easily write notes and other things to look like mirror writing. Get a sheet of thin white or light colored paper. With a dark marker, write something on one side. Make sure you write it thick and dark enough so that it will show through on to the other side. Flip over the paper and trace what you wrote. You'll be tracing it backwards.

It should come out like how you would see your regular writing if you were to hold it up to a mirror. For fun, write down different words, or write a note to someone, then reverse it and send it to them. If you write with white crayon on a white piece of paper, it looks like there's nothing there. But if you then paint over it, your invisible writing will magically appear.

Write words, phrases or even a note to someone, and then impress them by making it magically appear! You can make a special Cryptograph Wheel to solve cryptographs see the picture! First make two circles of cardboard, one a bit smaller than the other, and use a protractor to mark them off into 26 pieces of about Write one letter of the alphabet in each division on each wheel.

Then attach the two wheels together using a split pin so that you can rotate them independently. Visit this site again to see an example: Use this site to learn more about signing the alphabet. Enter a word into the box and press "translate" to see how it looks in the sign language. Encryption is a method which allows information for example, a secret message to be hidden so that it cannot be read without special knowledge such as a password. Once this is done, using a secret code or cypher , the information is encrypted.

Decryption is a way to change an encrypted piece of information back into unencrypted form. This is called the decrypted form. The study of encryption is called cryptography. A simple kind of encryption for words is ROT In ROT13, letters of the alphabet are changed with each other using a simple pattern. Each letter is " rotated " by 13 spaces.

The ROT13 cipher is very easy to decrypt. Because there are 26 letters in the English alphabet, if a letter is rotated two times by 13 letters each time, the original letter will be obtained. So applying the ROT13 cipher a second time brings back the original text. When he communicated with his army, Julius Caesar sometimes used what is known as Caesar cipher today. This cipher works by shifting the position of letters: Most kinds of encryption are more complex.

Some are made only for text. Others are made for binary computer files like pictures and music. Today, the asymmetric encryption system used the most is RSA [ source? Any computer file can be encrypted with RSA. AES is a common symmetric algorithm.

Cipher Wheel Usage Instructions