Verifiable Registration-Based Encryption
Verifiable Registration-Based Encryption
复制标题
可验证的基于注册的加密
DOI：
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发表时间：
2020
期刊：
影响因子：
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通讯作者：
Satyanarayana Vusirikala
中科院分区：
文献类型：
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作者：
Rishab Goyal;Satyanarayana Vusirikala
在近期的研究中，加尔格（Garg）、哈贾巴迪（Hajiabadi）、马哈茂迪（Mahmoody）和拉希米（Rahimi）[18]引入了一种新的加密框架，他们将其称为基于注册的加密（RBE）。RBE背后的核心动机是为解决基于身份的加密（IBE）系统中众所周知的密钥托管问题提供一种新的方法[33]。通俗地说，在RBE系统中，与IBE系统不同，没有私钥生成器，而是用公钥累加器来替代。RBE系统中的每个用户自行采样其公私钥对，并将公钥发送给累加器进行注册。密钥累加器没有秘密状态，仅负责将所有已注册的用户身份 - 密钥对压缩成一个简短的公开承诺。在这里，加密者只需要压缩参数以及目标身份，而解密者则需要补充密钥材料以及与已注册公钥相关联的私钥。
In recent work, Garg, Hajiabadi, Mahmoody, and Rahimi [18] introduced a new encryption framework, which they referred to as Registration-Based Encryption (RBE). The central motivation behind RBE was to provide a novel methodology for solving the well-known key-escrow problem in Identity-Based Encryption (IBE) systems [33]. Informally, in an RBE system, there is no private-key generator unlike IBE systems, but instead, it is replaced with a public key accumulator. Every user in an RBE system samples its own public-secret key pair and sends the public key to the accumulator for registration. The key accumulator has no secret state and is only responsible for compressing all the registered user identity-key pairs into a short public commitment. Here the encryptor only requires the compressed parameters along with the target identity, whereas a decryptor requires supplementary key material along with the secret key associated with the registered public key.