Zobrazeno 1 - 10
of 67
pro vyhledávání: '"Ananth, Prabhanjan"'
Common random string model is a popular model in classical cryptography. We study a quantum analogue of this model called the common Haar state (CHS) model. In this model, every party participating in the cryptographic system receives many copies of
Externí odkaz:
http://arxiv.org/abs/2407.07908
Unclonable cryptography utilizes the principles of quantum mechanics to addresses cryptographic tasks that are impossible classically. We introduce a novel unclonable primitive in the context of secret sharing, called unclonable secret sharing (USS).
Externí odkaz:
http://arxiv.org/abs/2406.11008
Unclonable cryptography is concerned with leveraging the no-cloning principle to build cryptographic primitives that are otherwise impossible to achieve classically. Understanding the feasibility of unclonable encryption, one of the key unclonable pr
Externí odkaz:
http://arxiv.org/abs/2405.10274
Common random string model is a popular model in classical cryptography with many constructions proposed in this model. We study a quantum analogue of this model called the common Haar state model, which was also studied in an independent work by Che
Externí odkaz:
http://arxiv.org/abs/2404.05227
Autor:
Ananth, Prabhanjan, Behera, Amit
We explore a new pathway to designing unclonable cryptographic primitives. We propose a new notion called unclonable puncturable obfuscation (UPO) and study its implications for unclonable cryptography. Using UPO, we present modular (and arguably, si
Externí odkaz:
http://arxiv.org/abs/2311.11890
We introduce a new notion called ${\cal Q}$-secure pseudorandom isometries (PRI). A pseudorandom isometry is an efficient quantum circuit that maps an $n$-qubit state to an $(n+m)$-qubit state in an isometric manner. In terms of security, we require
Externí odkaz:
http://arxiv.org/abs/2311.02901
We study the problem of watermarking large language models (LLMs) generated text -- one of the most promising approaches for addressing the safety challenges of LLM usage. In this paper, we propose a rigorous theoretical framework to quantify the eff
Externí odkaz:
http://arxiv.org/abs/2306.17439
We study the relationship between notions of pseudorandomness in the quantum and classical worlds. Pseudorandom quantum state generator (PRSG), a pseudorandomness notion in the quantum world, is an efficient circuit that produces states that are comp
Externí odkaz:
http://arxiv.org/abs/2306.05613
Quantum cryptography leverages many unique features of quantum information in order to construct cryptographic primitives that are oftentimes impossible classically. In this work, we build on the no-cloning principle of quantum mechanics and design c
Externí odkaz:
http://arxiv.org/abs/2302.14860
The powerful no-cloning principle of quantum mechanics can be leveraged to achieve interesting primitives, referred to as unclonable primitives, that are impossible to achieve classically. In the past few years, we have witnessed a surge of new unclo
Externí odkaz:
http://arxiv.org/abs/2302.01874