Cipher ACM and Vigenere

Cancelled Posted 6 years ago Paid on delivery
Cancelled Paid on delivery

For the Vigenere cipher:

The file [login to view URL] has two ciphertexts. The first used a key of length 3. The second has unknown keylength.

Submit a plaintext file called [login to view URL] that has FIVE lines in it:

- first 40 characters of the plaintext message of the first ciphertext

- key used to encrypt the first ciphertext

- first 40 characters of the plaintext message of the second ciphertext

- key used to encrypt the second ciphertext

- one line description of how you solved it.

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For the ACM cipher:

Consider the encryption scheme specified here: [login to view URL]

In the file [login to view URL] decrypt the two messages. The first message also gives you the secret key. For the second word, you will need to find the key yourself. The keys for the second ciphertext have different lengths.

Submit a file [login to view URL], that has four lines:

secret key for first ciphertext (given)

plaintext message for first ciphertext

secret key for second ciphertext

plaintext message for second ciphertext

Algorithm C Programming Computer Security Cryptography Software Architecture

Project ID: #15515688

About the project

2 proposals Remote project Active 6 years ago

2 freelancers are bidding on average $110 for this job

abbessiw

I have already found 3 original text and I am focusing on the last one. Expérience et Compétences appropriées Ph.D. in computer science and engineering degree knowledge in encryption algorithms and complexity Étapes More

$100 CAD in 10 days
(1 Review)
1.8
i555i666wHeretic

Solution - decrypted (second) Cipher Text/etc. Relevant Skills and Experience Decryption, Reverse Engineering Proposed Milestones $120 CAD - Decrypted data in required format, description and (if needed) progra More

$120 CAD in 1 day
(1 Review)
1.4