Final answer:
The message 'TOOE WTBE MORW AETA CPMR HDSO SAL' encrypted using a tabular transposition cipher with rows of length 3 characters decrypts to 'TOO, WET, BEM, ROW, TEA, CAP, HER, DOS, ALS' when rearranged into columns. And there is no any extra nonsense letters at the end of the decrypted phrase.
Step-by-step explanation:
To solve the student's question, we need to decrypt the message 'TOOE WTBE MORW AETA CPMR HDSO SAL' which was encrypted using a tabular transposition cipher with rows of length 3 characters.
First, we need to write down the message in rows of three and read the message column by column instead.
Here's how the message would look like written out:
- TOO
EWT
BEM
ORW
AET
ACP
MRH
DSO
SAL
We then rearrange the letters within each block to get the decrypted message:
TOO, WET, BEM, ROW, TEA, CAP, HER, DOS, ALS. And there is no any extra nonsense letters at the end of this decrypted phrase.