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In this paper, we describe the problem of checking the integrity of a hard disk for forensics investigation after the computer of a suspect has been seized. Existing solutions do not provide a satisfactory solution to solve the problem. They either require a huge amount of storage to store the hash values of the sectors or may not be able to cope with the(More)
—In this paper, we describe the problem of verifying the integrity of a hard disk especially for forensics investigation after the computer of a suspect has been seized. Existing solutions do not provide a satisfactory solution to solve the problem. They either require a huge amount of storage to store the hash values of the sectors or may not be able to(More)
Using finite element method (FEM), a D-shaped multimode fiber sensor (MFS) based on surface plasmon resonance (SPR) was designed and optimized. Here the core radius of multimode fiber is 52.5μm. The simulations show that the resonant wavelengths of 45th~50th propagation modes and their wavelength redshifts due to the ambient refractive index change(More)
A side-imaging technique (SIT) for orienting the azimuthal angle of micro-structured fiber (MSFs) is proposed and demonstrated. Scattering is reduced by using the incoherent light as illuminating source. Side images are measured and analyzed while the fiber is rotated. The peaks pattern of the side-images, unique to each MSF, are experimentally demonstrated(More)
To fix the more and more serious leakage problem in remote access to confidential data, the paper designs and implements a secure end-to-end browsing system with mobile composition. It enables mobile-authenticated users to browse confidential files stored at server side using their personal computers securely. The authentication function is in real-time(More)
In this paper, a theoretical analysis of figure of merit (FOM) of a surface plasmon resonance (SPR) sensor with a one dimensional (1D) Photonic Crystal (PC)and an anti-oxidizing layer of the graphene has been carried out. The numerical simulation is based on side polished multi mode fiber SPR sensor with the 75 μm residual fiber thickness and 20nm(More)