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Transposition Cipher
Changes the order of characters to obscure a message without altering the characters themselves.
Decrypting tabular transposition cipher
Identify the number of characters and divide by the number of characters per row to ascertain the number of rows.
Limitations of Transposition Cipher
Maintain letter frequency, making them susceptible to frequency analysis.
An early version of transposition cipher
A paper wrapped around a stick of a given thickness and a message was written on the paper. Once unwrapped, the message was unreadable.
Which statement is correct?
Select one:
a. Transposition Cipher substitutes characters in the original message according to a fixed scheme.
b. Transposition Cipher shifts characters around according to a regular scheme so that the result is a permutation of the original message.
c. Using matrix transpose, Transposition Cipher is based on linear algebra.
d, Transposition Cipher uses a public key to encode messages.
Transposition Cipher shifts characters around according to a regular scheme so that the result is a permutation of the original message.
You can use a key for coding and decoding. Which statement is NOT correct about the key?
Select one:
The key can be of any length
The key can have digits
The key needs to be at least 5 characters long and up to 256
The key is a string
The key needs to be at least 5 characters long and up to 256.
