# 什么是私钥

钱包是密钥管理工具，用户用私钥来签名交易，从而证明该用户拥有交易的输出权，而输出的交易信息是存储在区块链中。

私钥非常重要，相当于现实中的银行卡密码。一旦泄漏，会直接造成数字资产的损失。所以请务必保管好私钥。


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