Results 91 to 100 of about 90,649 (207)
Unbiased risk estimation method for covariance estimation [PDF]
, 2011 We consider a model selection estimator of the covariance of a random process. Using the Unbiased Risk Estimation (URE) method, we build an estimator of the risk which allows to select an estimator in a collection of model.
Chabriac, Claudie +2 more
core +2 more sources
Provably secure private key protection scheme for smart mobile terminal
Tongxin xuebao, 2012 A provable security scheme for private key protection of smart mobile terminal (SMT) was presented.In the scheme a improved security mechanism is incorporated,which includes password protection,key division and partial key retrieval from server of strong
Jun MA, Jian-feng MA, Yuan-bo GUO
doaj +2 more sources
On the security of the Courtois-Finiasz-Sendrier signature
Open Mathematics, 2018 We prove that a variant of the Courtois-Finiasz-Sendrier signature is strongly existentially unforgeable under chosen message attack in the random oracle model, assuming hardness of the Permuted Goppa Syndrome Decoding Problem (also known as the ...
Morozov Kirill +3 more
doaj +1 more source
Tighter Proofs of CCA Security in the Quantum Random Oracle Model
, 2019 We revisit the construction of IND-CCA secure key encapsulation mechanisms (KEM) from public-key encryption schemes (PKE). We give new, tighter security reductions for several constructions. Our main result is an improved reduction for the security of the (formula presented)-transform of Hofheinz, Hövelmanns, and Kiltz (TCC’17) which turns OW-CPA ...
Bindel, Nina +4 more
openaire +2 more sources
A Novel Identity-Based Signcryption Scheme in the Standard Model
Information, 2017 Identity-based signcryption is a useful cryptographic primitive that provides both authentication and confidentiality for identity-based crypto systems. It is challenging to build a secure identity-based signcryption scheme that can be proven secure in a
Yueying Huang, Junjie Yang
doaj +1 more source
Faster Convex Optimization: Simulated Annealing with an Efficient Universal Barrier
, 2015 This paper explores a surprising equivalence between two seemingly-distinct convex optimization methods. We show that simulated annealing, a well-studied random walk algorithms, is directly equivalent, in a certain sense, to the central path interior ...
Abernethy, Jacob, Hazan, Elad
core
A Secure Authentication Protocol Supporting Efficient Handover for UAV
MathematicsUnmanned Aerial Vehicles (UAVs) are increasingly pivotal in operations such as flood rescue, wildfire surveillance, and covert military endeavors, with their integration into the Internet of Things (IoT) networks broadening the scope of services they ...
Kang Wen +5 more
doaj +1 more source
Towards automated proofs for asymmetric encryption schemes in the random oracle model [PDF]
, 2008 Judicaël Courant +4 more
openalex +1 more source
Generic Authenticated Key Exchange in the Quantum Random Oracle Model
, 2020 We propose \(\mathsf {FO_\mathsf {AKE}}\), a generic construction of two-message authenticated key exchange (AKE) from any passively secure public key encryption (PKE) in the quantum random oracle model (QROM). Whereas previous AKE constructions relied on a Diffie-Hellman key exchange or required the underlying PKE scheme to be perfectly correct, our ...
Hövelmanns, Kathrin +3 more
openaire +2 more sources
Adapting the Weaknesses of the Random Oracle Model to the Generic Group Model [PDF]
, 2002 The generic group model has recently been used to prove the security of certain asymmetric encryption and signature schemes. This paper presents results that show that there exist problems in that are provably hard in the generic group model but easy to solve whenever the random encoding function is replaced with a specific encoding function (or one ...
openaire +1 more source