threesixtify
New member
- Joined
- Jan 22, 2013
- Messages
- 1
Hi guys,
How you all doing?
Would be a great help if you could help me solve these equations. I guess more than the answers I need the process by which you get to them.
Here are the questions:
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1) The cryptotext 3276 is a result of the Pohlig-Hellman Cipher with p = 7823 and e = 3129. Find the Plaintext.
Encryption algo: Ee(x) =xe (mod p)
Decryption algo: Dd(y) = yd (mod p)
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2) The Affine Hill Ciper has the encryption function
E(x^1,...,x^m) = (x^1,...,x^m) A+(b^1,...,b^m) (mod 26)
where A is invertible m x m matrix. Encrypt the message "tavern" using the encryption key m=2, A= (see matrix below)
( 4 11
3 19 )
and (b^1, b^2) = (13, 5).
Check your result by decrypting.
---------------------------------------------------------------------------------------------------------------------------------------------------------
Ok. That's it!
Any and all help would be appreciated... Thankss:arrow:
How you all doing?
Would be a great help if you could help me solve these equations. I guess more than the answers I need the process by which you get to them.
Here are the questions:
---------------------------------------------------------------------------------------------------------------------------------------------------------
1) The cryptotext 3276 is a result of the Pohlig-Hellman Cipher with p = 7823 and e = 3129. Find the Plaintext.
Encryption algo: Ee(x) =xe (mod p)
Decryption algo: Dd(y) = yd (mod p)
---------------------------------------------------------------------------------------------------------------------------------------------------------
2) The Affine Hill Ciper has the encryption function
E(x^1,...,x^m) = (x^1,...,x^m) A+(b^1,...,b^m) (mod 26)
where A is invertible m x m matrix. Encrypt the message "tavern" using the encryption key m=2, A= (see matrix below)
( 4 11
3 19 )
and (b^1, b^2) = (13, 5).
Check your result by decrypting.
---------------------------------------------------------------------------------------------------------------------------------------------------------
Ok. That's it!
Any and all help would be appreciated... Thankss:arrow: