Kalman filter (KF) is widely used in SINS + GPS-guided combination method, but the sensor's mathematical model of the transporter is generally nonlinear, so the complexity and computation of the model are large. In this paper, we present an Kalman filter algorithm based on error state variables in SINS + GPS navigation application. The mathematical model of the errors of GPS data and inertial navi...Show More
Nowadays, most proxy signature schemes are based on the difficulty of DLP (Discrete Logarithm Problem) or ECDLP (Elliptical Curve Discrete Logarithm Problem). As though many proxy signature schemes based on DLP or ECDLP have been proposed, it makes us discouraged that some disadvantages can be found after a new or modified proxy signature scheme was designed after short time. How to solve the ques...Show More
In a multi-proxy multi-signature scheme, one original group delegates a group of proxy signers to sign messages on behalf of the original signers. When the proxy signature is created, all of proxy signers cooperate to generate valid proxy signatures. Based on Cha and Cheon's ID-based signature scheme, a multi-proxy multi-signature scheme based on bilinear-pairs is proposed. The proposed scheme can...Show More
In a multi-proxy signature scheme, one original signer delegates a group of n proxy signers to sign messages on behalf of himself or herself. When the proxy signature is created, n proxy signers cooperate to generate valid proxy signatures. Based on Cha and Cheon's ID-based signature scheme, a designated-verifier multi-proxy signature scheme is proposed. The proposed scheme can provide the securit...Show More
