> For the complete documentation index, see [llms.txt](https://support.cregis.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://support.cregis.com/cregis-wallet-guide/zh-cn/resources/faq/transaction/multi_signing.md).

# 为什么多签需要同时在线？

其他钱包通过分开签名的方式实现多签功能，其中一方完成签名后，平台会将该方的分片存储于云端，然后等待另一方进行签名。然而，这种方式相当于平台暂时拥有完整的私钥，这样的设计存在较大的安全风险。

为了保障用户资产安全，Cregis 采用更严格的安全设计，避免此类操作。Cregis 的多签功能基于 MPC（多方计算）技术，用户的私钥从未以完整形式存在。签名过程中，各方分片通过加密协议实时交互完成签名，无需任何一方将分片存储于云端，确保私钥的绝对安全，同时消除了中心化存储可能带来的潜在风险。

因此，Cregis 的多签需要各方同时在线，才能通过实时交互完成签名，避免任何一方分片被存储于云端，从而保障私钥始终安全。


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