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Vigenere Cipher Decoding

For the purpose of hiding the meaning of the messages, it encrypted using Caesar cipher substitution then using another substitution where the key is 567. Once the message is processed through the aforementioned methods, an extra layer is added of security by encrypting the message with One Time Pad that increments by one each time it’s used but remains less or equals to 15 for encryption and decryption.

For one particular message between two people, that key was:

7,15,12,6,8,9,4,2,1,13,12,5,3,1,8,15,6,4,8,12,8,10,9,14,6,11,13,2,4,6

When the receiver received the message, he/she received the following ciphertext:

LC DOMX IZY XVHP XMJQSH AANW FIHABRT

What is the plaintext?

Please note all calculation steps are required.

Beceriler: Algoritma, C++ Programlama, Bilgisayar Güvenliği, Kriptografi, Veri Madenciliği

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( 328 değerlendirme ) Jalandhar, India

Proje NO: #19233986

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waseemaslam85

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vw8252525vw

Hey, I think I would be an excellent candidate for this job. I'm a 22 year old software engineer coming from STEM High School and Academy (Highlands Ranch, Colorado, USA) inaugural class of 2015. I've done everything Daha Fazla

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