Cryptanalysis of the Double-Moduli Cryptosystem

• 作者: Serge Vaudenay Sonia Mihaela Bogos
• 来源期刊: 通讯、网络与系统学国际期刊(英文)
• 学科: 工学
• 关键词: Complex Modulus Primary Residue PLAINTEXT PRE-CONDITIONING PLAINTEXT Attack Public-Key Scheme LATTICES LLL Algorithm Orthogonal LATTICES
• 年，卷（期）: 2012,（12）
• 页码范围: 834-838
• 页数: 5页
• 分类号: TN91

摘要

In this article we present a lattice attack done on a NTRU-like scheme introduced by Verkhovsky in [1]. We show how, based on the relation between the public and private key, we can construct an attack which allows any passive adversary to decrypt the encrypted messages. We explain, step by step, how an attacker can construct an equivalent private key and guess what the original plaintext was. Our attack is efficient and provides good experimental results.