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C# 创建 MIME 消息？

发布于 2024-09-09 15:59:38 字数 222 浏览 6 评论 0原文

C# .Net 中是否有内置的 MIME 文件功能？我想要做的是：

将文件转换为 MIME 消息
将 MIME 消息签名为 pkcs 7 blob
的 pcks 7 blob MIME
最后加密整个内容。

关于如何解决这个问题有什么建议吗（不是加密或签名部分，而是 MIMEing）？ MIME 处理文件到底涉及什么？

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丶视觉 2024-09-16 15:59:38

有一个很好的商业包，只需支付少量费用：
Mime4Net

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丢了幸福的猪 2024-09-16 15:59:38

我建议您不要使用第三方库，而是查看核心 .NET 库。使用 Attachment 类；它自 .NET 2 以来就已存在。

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暗地喜欢 2024-09-16 15:59:38

据我所知，裸露的.NET 中没有这样的支持。您必须尝试第三方库之一。其中之一是我们的 Rebex Secure Mail for .NET。以下代码显示了如何实现它：（

using Rebex.Mail;
using Rebex.Mime.Headers;
using Rebex.Security.Certificates;
...

// load the sender's certificate and 
// associated private key from a file 
Certificate signer = Certificate.LoadPfx("hugo.pfx", "password");

// load the recipient's certificate 
Certificate recipient = Certificate.LoadDer("joe.cer");

// create an instance of MailMessage 
MailMessage message = new MailMessage();

// set its properties to desired values 
message.From = "[email protected]";
message.To = "[email protected]";
message.Subject = "This is a simple message";
message.BodyText = "Hello, Joe!";
message.BodyHtml = "Hello, <b>Joe</b>!";

// sign the message using Hugo's certificate 
message.Sign(signer);

// and encrypt it using Joe's certificate 
message.Encrypt(recipient);

// if you wanted Hugo to be able to read the message later as well, 
// you can encrypt it for Hugo as well instead - comment out the previous 
// encrypt and uncomment this one: 
// message.Encrypt(recipient, signer)

代码取自 S/MIME 教程页面)

As far as I know there is no such support in the bare .NET. You have to try one of third party libraries. One of them is our Rebex Secure Mail for .NET. Following code shows how to achieve it:

using Rebex.Mail;
using Rebex.Mime.Headers;
using Rebex.Security.Certificates;
...

// load the sender's certificate and 
// associated private key from a file 
Certificate signer = Certificate.LoadPfx("hugo.pfx", "password");

// load the recipient's certificate 
Certificate recipient = Certificate.LoadDer("joe.cer");

// create an instance of MailMessage 
MailMessage message = new MailMessage();

// set its properties to desired values 
message.From = "[email protected]";
message.To = "[email protected]";
message.Subject = "This is a simple message";
message.BodyText = "Hello, Joe!";
message.BodyHtml = "Hello, <b>Joe</b>!";

// sign the message using Hugo's certificate 
message.Sign(signer);

// and encrypt it using Joe's certificate 
message.Encrypt(recipient);

// if you wanted Hugo to be able to read the message later as well, 
// you can encrypt it for Hugo as well instead - comment out the previous 
// encrypt and uncomment this one: 
// message.Encrypt(recipient, signer)

(Code taken from the S/MIME tutorial page)

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