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liveness

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In information security, liveness refers to the transmission of data that is happening now and not a replay of a recording of data sent previously. Liveness is introduced into secure transmissions by mixing in a number that cannot be duplicated again (see nonce). See replay attack.
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I miss that kind of liveness and spontaneity, which translates into danger.
IS IT GARRY ... OR IS IT LARRY? : SHANDLING THRIVES IN BLURRED ... by Daily News (Los Angeles, CA)
In addition to supporting the IKEv2 standard, Intoto's iGateway EX product line includes advanced features such as Certificate Authentication with certification chaining and cross certification support, Liveness Check for detection of dead peers, Extended Sequence Number (ESN) needed in ultra-high volume data networks, and NAT-Traversal for working through enterprise networks with Network Address Translation (NAT).
Intoto Upgrades IPsec VPNs with IKEv2 Support for Secure Enterprise ... by Business Wire
Lumidigm will use its technology (LumiGuard(TM)) to develop an anti-spoofing sensor (LumiSure(TM)) for measuring liveness and other properties of live human tissue.
Unisys Selects Lumidigm to Develop Anti-Spoofing Optical Deep Tissue ... by Business Wire
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