Paras - A Private NFT Protocol
Paras - A Private NFT Protocol
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Paras - 私有 NFT 协议
DOI：
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发表时间：
2022
期刊：
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通讯作者：
V. Rao
中科院分区：
文献类型：
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作者：
V. Rao
不可替代令牌（nft）是一个区块链应用程序，最近取得了巨大的成功。然而，NFT市场主要建立在不提供隐私工具的流行区块链平台上。因此，每个人都可以很容易地看到nft。这自然会产生各种问题，包括被盗/复制的nft和像掩护交易这样的攻击。此外，这种架构无法反映现实生活中的隐私概念，因为它将独特的实物商品数字化。在这个项目中，我们构建了Paras——一个为nft提供隐私的区块链不可知协议。具体来说，可以隐藏真正的nft，只在市场上显示对它们的引用，隐藏卖家和投标人身份，隐藏出价和用户钱包余额。Paras基于密码原语，如阈值加密和健壮的秘密共享。与此方向上的某些现有协议不同，它不依赖于任何可信的执行环境来实现安全性。
Non-fungible tokens (NFTs) are a blockchain application that has recently witnessed significant success. However, NFT marketplaces are majorly built on popular blockchain platforms that do not provide privacy tools. As a result, NFTs are easily visible to everyone. This has naturally given rise to various issues, including stolen/duplicate NFTs and attacks like shill trading. Furthermore, this architecture fails to reflect the real-life privacy notion as it digitizes unique physical goods. Inthis project, we build Paras – a blockchain-agnostic protocol that offers privacy to NFTs. Specifically, one may hide the real NFTs and only display a reference to them on marketplaces, hide seller and bidder identities, hide bid values and user wallet balances. Paras is based on cryptographic primitives, such as, threshold encryption and robust secret sharing. It does not rely on any trusted execution environments for security, unlike some existing protocols in this direction.