Ephemeral keys

Ephemeral keys

Delay-Tolerant Security

Published in Aloizio Pereira da Silva, Scott Burleigh, Katia Obraczka, Delay and Disruption Tolerant Networks, 2019

The following are examples of secure mechanisms that assume rapid access to network peers. Key establishment. A common case is to negotiate an ephemeral key (a session key) that can be used for a communications session and then discarded. The initial negotiation is protected by a long-term key and, at the point in which the ephemeral key is established, the long-term key is no longer used.Key Authentication. The Public Key Infrastructure (PKI), used for most secure transactions on the Internet, uses the concept of a published public key and a secret private key. A public key is represented by a public key certificate that is published by a Certificate Authority (CA) [231]. The CA is the authoritative source for such certificates and can let a user on the network know if a public key that they wish to use is correct, or whether it has expired, been revoked, or otherwise changed. This validation happens every time a new security session is established.

Certificateless pairing-free authentication scheme for wireless body area network in healthcare management system

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Journal Information

Published in Journal of Medical Engineering & Technology, 2020

Philemon Kasyoka, Michael Kimwele, Shem Mbandu Angolo

Proof: We begin with the assumption that an attacker has access to private keys of both application provider and client and has access to value obtained from a past session. The attacker will not be able to compute a valid value since its computed using a random ephemeral key only known to the client

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Delay-Tolerant Security

Certificateless pairing-free authentication scheme for wireless body area network in healthcare management system