Göran Selander

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Our society greatly depends on mobile technologies. As wirelessly connected devices take over the control of the electricity in our homes, the water we drink and the transportation we use, it becomes increasingly important to guarantee the security of interactions of all players involved in a network. Apart from the high security needs, 5G will require(More)
DTLS is becoming the de facto standard for communication security in the Internet of Things. In order to run the DTLS protocol one needs to establish keys between the communicating devices. The default method of key establishment requires X.509 certificates and a Public Key Infrastructure, an approach which is often too resource consuming for small IoT(More)
This paper describes a framework that allows finegrained and flexible access control to connected devices with very limited processing power and memory. We propose a set of security and performance requirements for this setting and derive an authorization framework distributing processing costs between constrained devices and less constrained back-end(More)
The Internet of Things (IoT) is here, more than 10 billion units are already connected and five times more devices are expected to be deployed in the next five years. Technological standarization and the management and fostering of rapid innovation by governments are among the main challenges of the IoT. However, security and privacy are the key to make the(More)
This document describes the header compression mechanisms for the IPsec [RFC4301] based on the encoding scheme standardized in [RFC6282]. The IPsec Authentication Header (AH) and Encapsulated Security Payload (ESP) headers are compressed using Next Header Compression (NHC) defined in [RFC6282]. This document does not invalidate any encoding schemes proposed(More)
A simple and practical hashing scheme based on Cyclic Redundancy Check (CRC) is presented. Similarly to previously proposed cryptographically secure CRCs, the presented one detects both, random and malicious, errors without increasing bandwidth. However, we use a product of irreducible polynomials instead of a single irreducible polynomial for generating(More)
The main motive of this project is to design a crypto device with low complexity and high security by using “ADVANCED AES” Algorithm along with BIST technique. The selective application of technological and related procedural safeguards is an important responsibility of every Federal organization in providing adequate security to its electronic data systems(More)
Low-cost resource-constrained devices can allocate very limited resources for implementing security. At the same time, they still require some level of protection. In this paper, we present a lightweight message authentication scheme based on Cyclic Redundancy Check (CRC). The presented CRC inherits the implementation simplicity of the conventional CRC(More)