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pruefungen:hauptstudium:ls13:modkrypt-2020-05-15 [15.05.2020 10:32] – Braindump for ModCrypt 2020-05-15 Marcel[Inf] | pruefungen:hauptstudium:ls13:modkrypt-2020-05-15 [15.05.2020 10:39] – Marcel[Inf] | ||
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+ | ====== ModCrypt Exam 2020-05-15 ====== | ||
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+ | {{indexmenu>: | ||
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===== Meta Information ===== | ===== Meta Information ===== | ||
- | * Type of Exam: Oral Exam via video conference software + iPad + Apple Pen (my private ones) for drawing | + | |
+ | * Date: 2020-05-15 | ||
+ | | ||
* Examiner: Prof. Dr. Dominique Schröder | * Examiner: Prof. Dr. Dominique Schröder | ||
* Grade: 1.0 | * Grade: 1.0 | ||
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* The exam is fair! You can achieve 1.0 even with errors. As Prof. Schröder says themself, it's about understanding things and not so much about learning everything by heart. Of course you have to know all main definitions and security properties, but, for instance, I forgot this one construction of a CCA-secure KEM. I could replicate it with some hints mid-exam and hence it was not counted against me. | * The exam is fair! You can achieve 1.0 even with errors. As Prof. Schröder says themself, it's about understanding things and not so much about learning everything by heart. Of course you have to know all main definitions and security properties, but, for instance, I forgot this one construction of a CCA-secure KEM. I could replicate it with some hints mid-exam and hence it was not counted against me. | ||
* If you don't know something, keep thinking aloud. Prof. Schröder will work //with you// towards answering the question correctly. | * If you don't know something, keep thinking aloud. Prof. Schröder will work //with you// towards answering the question correctly. | ||
+ | * It's crucial to be able to draw something! If you also conduct the exam virtually via video conference software, be sure to have/borrow a tablet/ | ||
===== Exam ===== | ===== Exam ===== | ||
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* Okay, why is El Gamal not IND-CCA-secure? | * Okay, why is El Gamal not IND-CCA-secure? | ||
- | > ... | + | > You can mall with the ciphertext. [editor' |
* How does one get an IND-CCA-secure scheme? | * How does one get an IND-CCA-secure scheme? |