Security against Chosen-Plaintext Attacks
Autor: | Matthias Himmelmann |
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EAN: | 9783668385863 |
eBook Format: | |
Sprache: | Englisch |
Produktart: | eBook |
Veröffentlichungsdatum: | 25.01.2017 |
Kategorie: | |
Schlagworte: | CPA chosen-plaintext crypto cryptography decryptions discourse encryptions encryption scheme security |
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Document from the year 2016 in the subject Mathematics - Number Theory, grade: 1,7, Free University of Berlin (Fachbereich für Mathematik und Informatik), course: Kryptografie Seminar, language: English, abstract: In this discourse, I introduce the reader to the concept of Chosen-Plaintext Attacks, by first defining them and then introducing to some of the properties of encryption schemes secure against Chosen-Plaintext attacks. I then introduce the concept of pseudorandom functions and try to show, how pseudorandom functions or permutations help understanding CPA-security. The discourse ends with constructing a CPA-secure encryption scheme based on pseudorandom permutations and a proposition that proves its correctness.