# data security encryption

Have an assignment that need to be done:

"lab name" is mb

1. Let d equal your Unicode decimal `lab name'.

d17 mod 13

hint: d17 = d10  d7 and be careful of rounding errors using the website or a

calculator

2. The following message:

wqoashcgomvszzc

was encrypted using a Caeser Cipher using only lower case letters. The shift is

unknown.

Given that you know the plain text message contains the word `hello'. Determine

the shift and decrypt the message. Show your reasoning.

Thank you

IGNORE FIRST POST, SOME BIT WAS MISSING SEE THIS ONE:

"lab name" = mb

1. Let b equal your Unicode binary `lab name',
Let c be the binary representation of 2162 -1.
Encrypt your b using XOR encryption with key c. If we denote the resulting
Unicode binary ciphertext as e.
Write down e.
Then encrypt the message e using XOR encryption using b as the key. Write down
the result of this double encryption. Brie
y describe this result.
hint: These binary numbers are too large to entered into the web page directly,
you will need to split them.

2.Let d equal your Unicode decimal `lab name', from Question 1.
d17 mod 13
hint: d17 = d10  d7 and be careful of rounding errors using the website or a
calculator

3.The following message:
wqoashcgomvszzc
was encrypted using a Caeser Cipher using only lower case letters. The shift is
unknown.
Given that you know the plain text message contains the word `hello'. Determine
the shift and decrypt the message. Show your reasoning.

Thank you

SEE ATTACHED FILE, NEED QUESTIONS 2,3,4 IT IS NOT VERY CLEAR IN DESCRIPTION...

( 16 comentários ) London, United Kingdom

ID do Projeto: #5108838

## Premiar a:

nilanjande

Hi, The first question is not clear. What are the web pages described in Lab Sheet 1? The Caesar cipher is easy and I have already solved it. If I understood properly, answers would be 1. 7143___ 2. e = 42878 Mais

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TypingMachine

Dear Hiring Manager, Thanks for posting the project. I'm quite interested by your project. I am programmer with sincere and capable. I have developed many project. Particular, I have rich experience in en Mais

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