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Opportunistic encryption (OE) refers to any system that, when connecting to another system, attempts to encrypt communications channels, otherwise falling back to unencrypted communications. This method requires no pre-arrangement between the two systems.
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| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Openswan | instance of | Linux and Unix-like systemsThe FreeS/WAN and forks | 0.80 | text |
| strongSwan offer VPNs that can also operate in OE mode using IPsec-based technology | instance of | Linux and Unix-like systemsThe FreeS/WAN and forks | 0.80 | text |
| Opportunistic encryption | related to Email | Opportunistic | 0.60 | section |
| Opportunistic encryption | related to Email | SMTP STARTTLS | 0.60 | section |
| Opportunistic encryption | related to Email | Internet | 0.60 | section |
| Opportunistic encryption | related to Email | Internet Message Access Protocol | 0.60 | section |
| Opportunistic encryption | related to Email | IMAP | 0.60 | section |
| Opportunistic encryption | related to Email | STARTTLS | 0.60 | section |
| Opportunistic encryption | related to Email | With | 0.60 | section |
| Opportunistic encryption | related to Email | RFC | 0.60 | section |
| Opportunistic encryption | related to Email | Using TLS | 0.60 | section |
| Opportunistic encryption | related to Email | POP3 | 0.60 | section |
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