Determining the Output of the f-Function in DES Algorithm

Calculate the 32-bit output of the f-function in the DES algorithm given a 32-bit input 'A1B2C3D4' and a 48-bit key. The process involves expansion, key mixing, substitution, and permutation steps specific to DES.

Susan Zehra•1.5K views•9:15

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About this video

Consider the f-Function used in the DES algorithm. Suppose the 32-bit input is “A1B2C3D4”. Determine the 32-bit output of the function if the 48-bit key to the function is “F0D532A490C6”.

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1.5K

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9:15

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Jan 29, 2022

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Susan Zehra

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#des #des algorithm #f-function #32-bit input #48-bit key #hexadecimal #binary #encrypt #decrypt #length #period #Linear Feedback Shift Register #LFSR #degree #flip flops #exclusive or #exor #gates #logic #cryptography #cybersecurity #maths #random number generator #linear #congruent #generator #random #computer science #internet security #sequence #series #modular maths

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