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Hacker Lexicon: What Is Perfect Forward Secrecy?

29
Nov
2016
Hacker Lexicon: What Is Perfect Forward Secrecy?

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Encryption keeps your secrets, until it doesn’t. When you use an encryption tool like the venerable software PGP, for instance, your most sensitive communications are only as secure as a single, secret piece of data known as a private key. If that key gets stolen, it’s not just all your future messages that have been compromised.

An eavesdropper could crack all your past encrypted correspondence with that stolen key as well.

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