Perfect Forward Secrecy

In cryptography, forward secrecy (also known as perfect forward secrecy or PFS) is a property of key-agreement protocols ensuring that a session key derived from a set of long-term keys cannot be compromised if one of the long-term keys is compromised in the future. The key used to protect transmission of data must not be used to derive any additional keys, and if the key used to protect transmission of data is derived from some other keying material, then that material must not be used to derive any more keys. In this way, compromise of a single key permits access only to data protected by that single key.
Posts about Perfect Forward Secrecy
  • Facebook Tests Onion URL for Tor Users

    … Facebook is experimenting with ways for security-conscious users to access the social network via Tor, and Alec Muffett, a software engineer for security infrastructure in the company’s London office, described the process in a note on the Protect the Graph page. He wrote: It’s important to us at Facebook to provide methods for people to use…

    David Cohen/ AllFacebookin Social Facebook- 5 readers -
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