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VS 2012 How to make a Cypher [Encrypting & Decrypting String]

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I would like to know how to make a relatively basic Cypher using a basic algorithm. I have tried many times but fail miserably.

I am very sorry I cannot provide you with a basis of code for you to work of with but hopefully a detailed explanation might do it.

Features of the Cypher.

  • Ability to Encrypt & Decrypt String data.
  • Ability to customize a password in order to make it harder to decrypt.
  • In order to decrypt the recipient must have the password the first user encrypted with.


Here's the trick, Once lets say I encrypt the string "Hello World" and then the encrypted data turns into "47mcsDwej#E3@%#@" and then when I encrypt "Hello World" with the same password again, a new encryption will show up as well as it being able to decrypt itself! So same message that can be of multiple encryptions.

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