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需要对数据库中保存的用户密码做二次加密吗？

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需要对数据库中保存的用户密码做二次加密吗？

前端API使用HTTPS传过来的经过SHA256处理的密码，后端有必要再额外进行对称加密或者非对称加密进行保存吗？

暂时不考虑盐。


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一般密码保存都是加密的，而且是不可逆的


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