Could you tell me how the fibinacci cod is used with letters to send msg?

Question

Please be specific,,I'm really kinda slow..

Answer 1

Cryptography and Stenography are used in many more places that you may realize, yet is not used as much as it should be in some places. Wether you use these methods in your business, or your home, be sure to use good encryption. Not only does it ward off any onlookers, it will develop good habits in you.

The one time pad method was invented by the Russians, er, Soviet Union during the Cold War. It is simple in method, but UNBREAKABLE if used RIGHT. First out, I will start off with what is used in this method:

- The one time pad itself. This is a pad of random numbers that has to be at least as long as your message text or
longer. If you plan on sending many messages, the best way is to make a longer pad, even if the messages will not
be sent often. See, in order for this method to work, BOTH PEOPLE have to have the same exact one time pad.
And if you make short pads, the more you will have to trade pads with the message receiver/sender and therefore
the more possible ways someone may find the pad (i.e. in a dead drop) or discover that that is the method of
encryption you are using. Also, all the numbers MUST be completely random. DO NOT use a computer to
generate these number, because computers still tend to follow paths and are not as random as the human mind.

-Your message to be encrypted. Remember the message cannot be longer than your pad. The Soviets had pads, all
with hundreds of numbers on a sheet, with hundreds of sheets in a pad.

-Pencil and paper

First, we must change all periods to and "x" In example, "Hello." becomes "Hellox" Also all signs like
"$", "&" "@" and such must be also changed to their respective word forms. Also spell out ALL numbers, i.e. ONE
THREE SIX NINE, etc.
Now for the method. Lets say the following is my Pad of random numbers:

3243 8532 1978 3576 2884 0582 1024 7249 0184 2467 4824 0572 4397

Your one time pad would be longer, but this is all we will need for our first message.
One good way to make a one time pad is to take a series of random letters, like
"ADHIWURTQMCKOKEZPLWIEUCNAOURSF" and use the key below to convert them into numbers. Split
them into groups of four for simplicity.

Now we must convert out letters to numbers. And type of key here can be used, but for simplicity lets go with this:

A=01 B=02 C=03 D=04 E=05 F=6 G=07 H=08 I=09 J=10 K=11 L=12 M=13 N=14 O=15 P=16 Q=17 R=18 S=19
T=20 U=21 V=22 W=23 X=24 Y=25 Z=26

Simple enough, but it will still be an unbreakable code. Remember to use "01" instead of "1" and so on or your
math will not come out right.

Now lets create our message, say:

"Meet me at Eleven."

This message must be formatted like so:
"MEET ME AT ELEVENX"

When coding the message, end the message with "XX" to signal termination of the message. If needed, add
additional X's to 'pad-out', or run out the current 4 digit number string.

Now to encrypt the message. First, change the letters to numbers:

13050520 1305 0120 05120522051424

Then format into 4 digit phrases:

1305 0520 1305 0120 0512 0522 0514 2424

Notice I added two X's at the end to signal termination. If this would not have come out even, I would have just
added more.

Now to encode the message. The numbers are added with Fibonacci Addition. Numbers ARE NOT carried over to
the next column. I.E. 92+71=63. You add left to right this way. Notice the first group of four numbers is not used
to encode the message. This is the start key, and when the message is received the person can tell by this un-
changed number where in his pad the message starts. So lets encode our string.

First is the pad numbers, then the message numbers. (I chopped off the un-needed numbers from our pad example.)

One time pad: 3243 8532 1978 3576 2884 0582 1024 7249 0184 Message: ---- 1305 0520 1305 0120 0512 0522 0514 2424 Result: 3243 9837 1498 4871 2904 0094 1546 7753 2598


Tada! You know have your encrypted message. Now the Soviets went a step further, and changed the above
numbers to letters again with a old radio number code at the time I believe (correct me if I am wrong). That is not
needed but again adds a bit of security.
To decrypt the message, do the same method but BACKWARD, using Fibonacci Subtraction. If you come upon
two numbers which would equal a negative, add ten to the first number, i.e. 4-9 = (10+4)-9 = 14-9 = 5. :


3243 9837 1498 4871 2904 0094 1546 7753 2598 3243 8532 1978 3576 2884 0582 1024 7249 0184 ------ 1305 0520 1305 0120 0512 0522 0514 2424


Now we take the decrypted numbers and change them to their word form:
ME ET ME AT EL EV EN XX
Which Becomes:
MEET ME AT ELEVEN (message end)

Amazing isn't it? And it is UNBREAKABLE, if used RIGHT. This means the burning of ALL used up pads, and
NEVER EVER using a one time pad TWICE. This incenses the risk of someone figuring out the algorithm and
cracking your code. The CIA had a tremendously hard time cracking these codes in the 1950's and 60's. The fact
was that they COULDN'T. Not until a British spook recovered a one time pad from a Soviet spook did someone
crack the code. And also, the Soviets were using the pads over again. They were recycling them, and this caused
some code breakers at CIA to find bits and pieces of words in the messages. Reusing pads takes the security percent
down DRASTICALLY. If re-used completely, your encryption goes from 100% to 0%.

The only fault in this encryption is the transportation of the pads themselves. They somehow have to get from one
person to another. This was VERY risky. But that is up to you to decide on how to do.

Happy coding,

Answer 2

Well, there are several ways. Your question really needs to be more specific.

The fibinacci sequence is the 2 previous numbers added together gives the current number - so 1,1,2,3,5,8,13,21,34,55 etc etc.

What you could do is ignore the first 1, and assign a letter to each number - so 1=a, 2=b, 3=c, 5=d, 8=e, 13=f etc.

Then write down your code, work out what the numbers for each letter would be, then scatter in other random numbers between the "true message" fib numbers. Very hard to crack, very easy to translate. You can also use fib+1, fib+2, reverse the alphabet, or any combination of them.

Answer 3

See the site below for how they translate into numbers.

http://en.wikipedia.org/wiki/Fibonacci_coding

You can then use the number of the letter to determine which letter it would be. a =1, b = 2, etc