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发表于 2007-6-21 08:38:09
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希望能对你有用。
Opportunistic Encryption (OE) allows for "encryption for secure communication without any pre-arrangement specific to the pair of systems involved." Or in general terms, "I'd like to talk to Bob, with encryption if available".
This provides a level of security which is sometimes described as "Better Than Nothing Security"[1][2] or ANONSEC. It does not provide a strong level of security as authentication may be difficult to establish and secure communications are not forced. It does make the encryption of most internet traffic easy to implement, which has been a significant impediment to the mass adoption of Internet traffic security.
http://en.wikipedia.org/wiki/Opportunistic_encryption |
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