computational security
1Computational hardness assumption — In cryptography, a major goal is to create cryptographic primitives with provable security. In some cases cryptographic protocols are found to have information theoretic security, the one time pad is a common example. In many cases, information… …
2Computational forensics — (CF) is a quantitative approach to the methodology of the forensic sciences. It involves computer based modeling, computer simulation, analysis, and recognition in studying and solving problems posed in various forensic disciplines. CF integrates …
3Computational trust — In Information security, computational trust is the generation of trusted authorities or user trust through cryptography. In centralised systems, security is typically based on the authenticated identity of external parties. Rigid authentication… …
4Computational Diffie–Hellman assumption — The computational Diffie–Hellman (CDH assumption) is the assumption that a certain computational problem within a cyclic group is hard. Consider a cyclic group G of order q. The CDH assumption states that, given for a randomly chosen… …
5Computational Diffie-Hellman assumption — The computational Diffie Hellman (CDH) assumption is the assumption that a certain computational problem within a cyclic group is hard.Consider a cyclic group {mathbb G} of order q. The CDH assumption states that, given :(g,g^a,g^b) for a… …
6Security token — Several types of security tokens with a penny for scale …
7Computational indistinguishability — In computational complexity, if and are two distribution ensembles indexed by a security parameter n (which usually refers to the length of the input), then we say they are computationally indistinguishable if for any non uniform probabilistic… …
8Provable security — In cryptography, a system has provable security if its security requirements can be stated formally in an adversarial model, as opposed to heuristically, with clear assumptions that the adversary has access to the system as well as enough… …
9Information theoretic security — A cryptosystem is information theoretically secure if its security derives purely from information theory. That is, it is secure even when the adversary has unbounded computing power. An example of an information theoretically secure cryptosystem …
10Concrete security — In cryptography, concrete security or exact security is a practice oriented approach that aims to give more precise estimates of the computational complexities of adversarial tasks than polynomial equivalence would allow. Traditionally, provable… …
