please help!!!!!!! let letters of the alphabet be A = 01, B = 02, .. Z = 26. For RSA encryption let n = 119 and e = 5. Encrypt letter W. Show work. Thanks!!

Question

myininaya · Answer

So the message is W
And we want to encrypt this message 
Do you know the rsa encryption function?

anonymous · Answer

f(p) = (p+k) (mod 26)

myininaya · Answer

$$E(message=m)=m^e (\mod n)$$

myininaya · Answer

http://en.wikipedia.org/wiki/RSA_(algorithm)

myininaya · Answer

$$E(m)=m^e \mod n$$
We have n=119 and e =5 
So we have
$$E(m)=m^5 \mod 119$$

myininaya · Answer

Now I believe W is the 23rd number in the alphabet
So W=23
Replace m with 23 and evaluate to get the ciphertext

myininaya · Answer

And that is it :)

myininaya · Answer

According to above you said W is 23

myininaya · Answer

" A = 01, B = 02, .. Z = 26"

myininaya · Answer

A=01
B=02
C=03
D=04
E=05
F=06
G=07
and so

anonymous · Answer

so the answer would have to be a value between 0 and 26?

anonymous · Answer

sorry 1 and 26?

myininaya · Answer

Should be a value between 0 and n

anonymous · Answer

oh okay that makes sense, i got 109. Thanks!

myininaya · Answer

Ok great! :)

anonymous · Answer

i just thought the encryption might have to be an alphabet value, so its ok if its not?

myininaya · Answer

I believe 109 is right :)