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In a special case of a permutation cipher, we take a message, M, and write its letter in an s x t table in a row-major fashion, and then let the ciphertext be a column-major listing of the entries in the table. For example, if the plaintext is ATTACKATDAWN, using a 3x4 table, we would write the message as

ATTA

CKAT

DAWN

And the ciphertext would be ACDTKATAWATN. The secret key is the crptosystem is the pair (s, t). Implement the decryption algorithm that restores the plaintext in a programming language of your choice. Note that, your program must read the cipherext file, called youknow, and produce the plaintext file, called gotit. In your program, uses secret key (4, 5) and stuffing character “,” (comma) to full fill the table.

Habilidades: Java

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( 4 comentários ) Elizabeth, United States

ID do Projeto: #6836936

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phongpro

I have 5 years of programming experience. I can help you solve this problem. When you work with me you will feel very comfortable.

$25 USD em 1 dia
(20 Avaliações)
4.0

3 freelancers estão ofertando em média $22 para este trabalho

swteam4

A proposal has not yet been provided

$25 USD em 1 dia
(16 Comentários)
4.3
desm0ndsvw

Hi If you provide a sample of the sourcefile, I can make the app quickly and you can review it before accepting my bid.

$15 USD em 1 dia
(1 Comentário)
1.5