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Security Notions for Quantum Public-Key Cryptography

Takeshi Koshiba
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Abstract

It is well known that Shor's quantum algorithm for integer factorization can break down the RSA public-key cryptosystem, which is widely used in many cryptographic applications. Thus, public-key cryptosystems in the quantum computational setting are longed for cryptology. In order to define the security notions of public-key cryptosystems, we have to model the power of the sender, receiver, adversary and channel. While we may consider a setting where quantum computers are available only to adversaries, we generally discuss what are the right security notions for (quantum) public-key cryptosystems in the quantum computational setting. Moreover, we consider the security of quantum public-key cryptosystems known so far.

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Takeshi Koshiba. 2007-02-19. Security Notions for Quantum Public-Key Cryptography. https://arxiv.org/abs/quant-ph/0702183

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