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Mathematical foundations of modern cryptography: computational complexity perspective | | Shafi Goldwasser
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1 Dec 2002 | | Journal: | Proceedings of the ICM, Beijing 2002, vol. 1, 245--272 | | Subject: | Cryptography and Security; Computational Complexity MSC-class: 68Qxx, 11xx | cs.CR cs.CC | | Abstract: | Theoretical computer science has found fertile ground in many areas of mathematics. The approach has been to consider classical problems through the prism of computational complexity, where the number of basic computational steps taken to solve a problem is the crucial qualitative parameter. This new approach has led to a sequence of advances, in setting and solving new mathematical challenges as well as in harnessing discrete mathematics to the task of solving real-world problems. In this talk, I will survey the development of modern cryptography -- the mathematics behind secret communications and protocols -- in this light. I will describe the complexity theoretic foundations underlying the cryptographic tasks of encryption, pseudo-randomness number generators and functions, zero knowledge interactive proofs, and multi-party secure protocols. I will attempt to highlight the paradigms and proof techniques which unify these foundations, and which have made their way into the mainstream of complexity theory. | | Source: | arXiv, cs.CR/0212055 | | Services: | Forum | Review | PDF | Favorites | |
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