Summary: This paper provides a comprehensive treatment of forward-security in the context of shared-key based cryptographic primitives as a practical means to mitigate the damage caused by key-exposure. We provide definitions of security, practical proven-secure constructions, and applications for the ...
Summary: In cryptography, forward secrecy is a well-known property for key agreement protocols. It ensures that a session key will remain private even if one of the long-term secret keys is compromised in the future. In this paper, we investigate some forward security properties for Public-...
In Transport Layer Security (TLS), Diffie–Hellman key exchange-based PFSs (DHE-RSA, DHE-DSA) and elliptic curve Diffie–Hellman-based PFSs (ECDHE-RSA, ECDHE-ECDSA) are available. In theory, TLS can choose appropriate ciphers since SSLv3, but in everyday practice many implementations have ref...
Perfect Forward Secrecy is used to improve the security of communications transmitted across the Internet using public key cryptography.
The security of communications transmitted across the Internet can be improved by using public key cryptography. However if the public and private keys used in those communications are compromised it can reveal the data exchanged in that session as well as the data exchanged in previous sessions. ...
through the use of public-key cryptography and wait until the underlying cipher is broken (e.g. large quantum computers could be created which allow the discrete logarithm problem to be computed quickly). This would allow the recovery of old plaintexts even in a system employing forward ...
Exposure of secret keys is a major concern when cryptographic protocols are implemented on weakly secure devices. Forward security is thus a way to mitigate damages when such an event occurs. In a forward-secure scheme, the public key is indeed fixed while the secret...关键词: forward security...
Security properties of the scheme Applications Digital credential Digital credential is signed by the issuer with a digital signature scheme To certify the credential holder Digital signature scheme Signing uses the private key Verification uses the public key ...
Perfect Forward Secrecy (PFS) is a key exchange technique inSSL/TLSsecurity protocols that prohibits attackers from decrypting data from previous or future sessions if they have the private keys used in each session. PFS makes use of ephemeral session keys that are unique to each session and dis...
Abstract.Thereareseveralessentialfeaturesinkeyagreementprotocolssuch askeyescrow(essentialwhenconfidentiality,audittrailandlegalinterception arerequired)andperfectforwardsecrecy(i.e.,thesecurityofasessionkeyestab- lishedbetweentwoormoreentitiesisguaranteedevenwhentheprivatekeysof ...