MSK‐PK: A Public‐Key Encryption Cryptosystem with Multiple Secret‐Keys
MSK‐PK: A Public‐Key Encryption Cryptosystem with Multiple Secret‐Keys
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MSK-PK：具有多个秘密密钥的公钥加密密码系统
DOI：
10.1049/cje.2020.00.049
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发表时间：
2022-07
影响因子：
1.2
通讯作者：
Lingyu Wang
中科院分区：
文献类型：
--
作者：
Jiaqi Zhai;Jian Liu;Lusheng Chen;Lingyu Wang
通过允许中间节点在转发多个数据包之前组合它们，多播网络中的网络编码概念可以提供最大可能的信息流。然而，这也意味着传统的加密方法不太适用，因为接收者的不同公钥意味着不同的密文，而这些密文无法通过网络编码轻松组合。虽然网络编码本身可以提供机密性，但其有效性在很大程度上取决于底层网络拓扑和窃听者的能力。最后，广播加密和组密钥协商技术都允许发送者向所有接收者广播相同的密文，尽管它们依赖于可信密钥服务器或安全通道的假设。在本文中，我们提出了一种新颖的公钥加密概念，具有用于加密的单个公钥和用于解密的多个秘密密钥（MSK-PK），其密文扩展有限，并且不需要可信密钥服务器或安全通道。为了证明这个概念的可行性，我们构建了一个基于一类基于格的多陷门函数的具体方案。我们证明这些函数满足单向性并且可以抵抗最近平面算法。
By allowing intermediate nodes to combine multiple packets before forwarding them, the concept of network coding in multi‐cast networks can provide maximum possible information flow. However, this also means traditional encryption methods are less applicable, since the different public‐keys of receivers imply different ciphertexts which cannot be easily combined by network coding. While network coding itself may provide confidentiality, its effectiveness heavily depends on the underlying network topology and ability of the eavesdroppers. Finally, broadcast encryption and group key agreement techniques both allow a sender to broadcast the same ciphertext to all the receivers, although they rely on the assumptions of trusted key servers or secure channels. In this paper, we propose a novel public‐key encryption concept with a single public‐key for encryption and multiple secret keys for decryption (MSK‐PK), which has limited ciphertext expansion and does not require trusted key servers or secure channels. To demonstrate the feasibility of this concept, we construct a concrete scheme based on a class of lattice‐based multi‐trapdoor functions. We prove that those functions satisfy the one‐wayness property and can resist the nearest plane algorithm.
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影响因子：
2.5
作者：
Ahlswede, R;Cai, N;Yeung, RW
通讯作者：
Yeung, RW
影响因子：
3
作者：
V. Shoup
通讯作者：
V. Shoup
DOI：
10.1007/3-540-44647-8_15
发表时间：
2001-08
期刊：
IACR Cryptol. ePrint Arch.
影响因子：
--
作者：
V. Shoup
通讯作者：
V. Shoup
影响因子：
2.5
作者：
Li, SYR;Yeung, RW;Cai, N
通讯作者：
Cai, N
影响因子：
3.7
作者：
Wu, Qianhong;Qin, Bo;Manjon, Jesus A.
通讯作者：
Manjon, Jesus A.