Secure VPN technology is only possible with the use of appropriate security systems such as encryption, digital signatures, digital certificates, public/private key pairs, non-repudiation, and time-stamping. A PKI comprises a system of certificates, certificate authorities, subjects, relying partners, registration authorities, and key repositories that provide for safe and reliable communicatio...

Checking remote data possession is of crucial importance in public cloud storage. It enables the users to check that their outsourced data have been kept intact without downloading the original data. The existing remote data possession checking (RDPC) protocols have been designed in the PKI (public key infrastructure) setting. The cloud server has to validate the users’ certificates before stor...

Recent deliberative planning theory has developed the idea that partnerships between governments, the private sector, and community advocates are the best way to create innovative solutions to ‘wicked’ policy problems, such as affordable housing. The worst case scenario, however, is that these partnerships are merely a new version of urban growth machines: collusion between governments and priv...

Biometric key technology is the organic combination of biometric encryption technology and traditional cryptography. Biometric key can directly encrypt data or encrypt key, with the character of portable use and not easily being stolen, forgotten and broken. This article provides an algorithm for generating key based on the fingerprint feature bit-strings, extracting fingerprint feature informa...

In many cases several entities, such as commercial companies, need to work together towards the achievement of joint goals, while hiding certain private information. Multi-agent STRIPS (MASTRIPS) is a new and attractive model for describing collaborative multi-agent privacy preserving planning, which is appropriate for such problems. In single agent classical planning, landmarks are key to cons...