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Implement the cipher as a class

Assignment Help Computer Network Security
Reference no: EM13325475

You are expected to complete the following tasks:

1. Stage 1

(a) Implement the cipher as a class which implements the provided interface.

• Implement the S-box functionality as a class
• Implement the permutation as a class which provides the required bit manipulation functions

(b) Test the cipher by constructing a JUnit test suite which con?rms that the cipher's methods operate correctly

(c) Implement a program which uses the cipher to encrypt and decrypt ?les.

(d) Implement a birthday paradox attack on a compression hash function.

Reference no: EM13325475

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