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| How to Build Secure E-mail - 如何建立安全的电子邮件 |
| www.eduxue.com 来源：eduxue.com 更新时间：2005-4-12 【字体：小 大】 |
推荐文章：英国最常用的118句口语
推荐文章简介：
1. absolutely not. 绝对不是。 2. are you coming with me? 你跟我一起去吗？ 3. are you sure? 你能肯定吗？ 4. as soon as possible. 尽快。 5. believe me. 相信我。 6. buy it . 买下来！ 7. call me tomorrow.
How to Build Secure E-mail - 如何建立安全的电子邮件
Unencrypted messages can be hijacked in transit and read or altered．If the mail is not digitally signed，you can’t be sure where it came from．
未加密的信息可能在传输中被截获、偷看或窜改。如果邮件不是数字签名的，你就不能肯定邮件是从哪里来的。
There are many options for securing e-mail，all with a few strengths and probably more weaknesses．
确保电子邮件的安全有多种选择，它们都有些长处，但有可能存在更多弱点。
Let’s take care of the easy decisions．Secure/Multipurpose Internet Mail Extensions(S/MIME)should be the message encryption and digital signature format because it’s the accepted standard and is built into leading e-mail clients such as Microsoft Outlook 98/2000 and Lotus Notes R5．Yet a standard such as S/MIME only takes you so far．Each vendor has implemented its own interpretation of S/MIME，which makes interoperability problematic．This drawback is exacerbated by the emergence of S/MIME Version 3 in the newest e-mail clients，which again could create interoperability issues．
让我们先关注一下容易做的决定，安全/多用途因特网邮件扩展(S/MIME)应该是信息加密和数字签名的格式，因为它是已被认可的标准，被做进了主要的电子邮件客户端软件中，如微软的Outlook 98/2000和莲花公司的Notes R5。迄今为止，你只能用S/MIME一类的标准。每家供应商都有自己对S/MIME的解释，这就引出 了互用性问题，最新的电子邮件客户端软件中S/MIME三版的出现，加重了这个缺陷，它再次可能带来互用性问题。
The path of least resistance is to get an e-mail security gateway， which is analogous to a firewall for e-mail．[1] [2] [3] [4] 下一页 |
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