创建一个数字人可以分为几个步骤，包括环境准备、模型下载、语音和图像文件的准备、配置和运行等。以下是一个基于SadTalker的数字人创建教程：环境准备：确保你的计算机安装了Python和pip工具。下载预训练模型：从GitHub上下载SadTalker的预训练模型，并将其放在checkpoints文件夹下。准备语音和图像文件：录制语音文件或使用示例wav文件，并准备一张个人的正面照片用于生成数字人
Abstract. Secure multi-party computation (MPC) allows a set of n parties to jointly compute a function over their private inputs. The seminal works of Ben-Or, Canetti and Goldreich [STOC ’93] and Ben-
It is essential that a multi-user cryptographic primitive be revocable since a legitimate user may quit the organization, or may act on malicious intent, or the relevant key may be leaked. In the grou
Abstract—Vehicular ad-hoc networks (VANETs) have drawn a lot of attention for their potential to improve traffic efficiency and safety. To deal with anonymous authentication and message integrity duri
We describe robust high-throughput threshold protocols for generating Schnorr signatures in an asynchronous setting with potentially hundreds of parties. The protocols run a single message-independent
Policy-based chameleon hash functions have been widely proposed for its use in blockchain rewriting systems. They allow anyone to create a mutable transaction associated with an access policy, while a
Ring signatures are significant cryptographic primitives used for anonymous authentication due to their anonymity and spontaneity. However, in some scenarios, they may offer excessive anonymity to the
Abstract—In healthcare wireless sensor networks (HWSNs), a lot of personal medical data are collected by wireless sensors. Given that a medical diagnostic analysis heavily relies on these medical data
Identity-based proxy re-signature (IDPRS) enables a semi-trusted proxy to convert one user’s signature to another user’s for the same message without revealing any secret information of both users’ si
Abstract—Blockchain technology was originally designed to ensure data security and trustworthiness through decentralization and immutability. However, in recent years, the misuse of immutability limit
Abstract—To ensure the quantum security requirement in internet of things (IoT) scenarios, we first propose certificateless anti-quantum blind signature (CLAQBS) for blockchain-based logis
Abstract— Energy-efficient proof-of-stake (PoS) consensus protocols in blockchain have gained much attention from academia and industry recently. Despite their potential advantages, PoS protocols have
Abstract—Multi-signature is a protocol where a set of signatures jointly sign a message so that the final signature is significantly shorter than concatenating individual signatures together. Recently
Abstract. Suppose Alice uses a t-out-of-n secret sharing to store her secret key on n servers. Her secret key is protected as long as t of them do not collude. However, what if a less-than-t subset of
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