如何使用php和mysql处理加密的私人消息

I have a codeigniter application that allows users to register and log in to (their passwords are hashed). Now creating a messaging system is all fine but I need a way to keep the messages encrypted in the database. I was planning on using a public key system where every user will have a public/private key pair however I am not sure it's possible to safely store the private keys on the web server. Is there any way to do this?

我有一个codeigniter应用程序，允许用户注册和登录（他们的密码被哈希）。现在创建一个消息传递系统都很好，但我需要一种方法来保持消息在数据库中加密。我打算使用公钥系统，每个用户都有一个公钥/私钥对，但我不确定是否可以安全地将私钥存储在Web服务器上。有没有办法做到这一点？

Also I don't really want the user to have to enter a key or their own password every time they send a message.

此外，我并不希望用户每次发送消息时都必须输入密钥或自己的密码。

Any guidance would be appreciated

任何指导将不胜感激

2 个解决方案

#1

First ask yourself "Do I really need this information encrypted?" I would guess that, unless you're working for a bank, you probably don't. But if you reeeeaallly must, use CI's Encryption class:

首先问自己“我真的需要加密这些信息吗？”我猜想，除非你在银行工作，否则你可能不会。但是如果你必须使用CI的加密类：

http://codeigniter.com/user_guide/libraries/encryption.html

2 个解决方案

#1

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