# Block Cipher

**Cool and Decent**

Question:

**Let temp_block denote a Sage variable that contains the output of the first application of function****fK****(f_K in the Sage example code) while encrypting with Simplified DES. Using subroutines from the example sage Code, write sage code to recover the input block passed to Simplifed DES Decrypt. Meaning reverse the first steps in Simplified DES Encrypt. You may assume that you have the first round key in a variable K1.****Using subroutines from the Sage example code for Simplified DES, write a function to compute Simplified DES Decrypt.**

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**other Questions(10)**

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**Block Cipher**Question:

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a year ago- Let temp_block denote a Sage variable that contains the output of the first application of function
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2 years ago- Lettemp_blockdenote a Sage variable that contains the output of the first application of function
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a year ago- Let temp_block denote a Sage variable that contains the output of the first application of function
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a year ago- Let temp_block denote a Sage variable that contains the output of the first application of function
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a year ago### Block Cipher

NOT RATED**Block Cipher**Question:

- Let temp_block denote a Sage variable that contains the output of the first application of function
*fK*(f_K in the Sage example code) while encrypting with …

a year ago- Let temp_block denote a Sage variable that contains the output of the first application of function