Anti-quantum generalized signcryption scheme based on multivariate and coding
| Autor: | Zhong Wang, Wen-Chao Liu, Yi-Liang Han, Lin Chen |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Theoretical computer science
business.industry Computer science 05 social sciences 050801 communication & media studies Cryptography Encryption Quantum technology 0508 media and communications 0502 economics and business 050211 marketing business Ciphertext expansion Quantum Decoding methods Multivariate cryptography Signcryption |
| Zdroj: | 2019 Chinese Control And Decision Conference (CCDC). |
| Popis: | The development of quantum technology is changing with each passing day. While bringing convenience to us, the security problems it brings cannot be underestimated. By studying the multivariate cryptography and coding cryptography in anti-quantum cryptography, the core mapping of the improved version of Simple Matrix scheme is modified by LRPC code, which combines the MQ problem and the decoding difficulty problem, effectively reduces the ciphertext expansion rate and realizes the flexible choice of LRPC codes. Based on the improvement of the trapdoor, a generalized signcryption scheme against quantum is proposed, which proves to meet the security of IND-CCA2 and the security of EUF-CMA. It can realize the adaptive conversion between signature, encryption, signcryption and normal mode, adapt to more complex network communication, and show strong survivability in the post-quantum era. |
| Databáze: | OpenAIRE |
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