Lập Lịch Khóa và Giải Mã trong DES

Network Security: Key Scheduling and Decryption in DES

Topics discussed:

1) The DES Encryption Algorithm.

2) How the input 64 bits are processed into output 64 bits through the Round Function.

3) The Key Scheduling Process.

4) The conversion of the 64-bit Original Key to the 56-bit Effective Key.

5) Generation of the 48-bit Round Key in the Critical Scheduling Process.

6) The Decryption Process in DES.

7) The Decryption Process by reversing the Round Keys.

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