1. For columnar transposition, would it be easier to break a ciphertext of 65 letters if a 513 or a 135 rectangle were used for the encrypting? Explain.

2. Use a railfence cipher with 3 rails removing the rails from top to bottom

to encrypt the message

alan turing the enigma

3. Try decrypting this message that was encrypted by using a railfence cipher with two rails.

TEETN	WRTRA	HNWSE	EOEBA	TUSHR	ISHBS	KONOO
MCIEA	DVLPD	YRHRC	EBU

4. Try decrypting this message that was encrypted with a railfence cipher with four rails:

TTTPT	QDSYP	RSHII	XEDOH	EIUNS	ESLDY	TEMES
SERSE	NELSC	NEAUC	FLERE	GAMAE	BHDIH	SCUCD
NG