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*[[A session object]] *[[A message-driven object]]

*[[A session object]] *[[A message-driven object]]

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A '''blind credential''' is a token asserting that someone qualifies under some criteria or has some stat ...is not using another's credential — identity theft — therefore a great deal of effort goes into the application of cryptography to authentic

...by disclosing the password to a third party by accident, on purpose, or as a result of deception?<br><br> 2. Will the user enter the password correctly (at least with a high probability)?<br><br>

...llenge to get the BRN software for a new target platform you have to build a (cross) compiler.<br> A compiler translates a high-level programming language (like C or C++) into binary code for execut

'''Q:''' Why does VMware Server not autostart a VM? '''A:''' Have a look at the latest log file below /tmp/vmware-<username>/ and

- Instead of (A^N)/2 it only takes A^(N/2) (A = alphabet of characters, N = number of characters used for the password)<b

- Leads always to the used password but is a matter of time and compute power<br> - Total exhaust time is 968 or 252, the average effort for a search is half of this<br><br>

The folder /src is a mirror and thus provides a better reliability (redundancy). If the master server breaks down we still Historically we had a ressource problem on the master server. To solve this we moved the folder /

In a typical system, human users must authenticate themselves to a client through in general three possible ways:

- A program running in the background in a public terminal room<br>

You need a Linux system with approximately 1GB free disk space to download and compile ===What is a toolchain?===

...a different password each time authentication is needed and to never reuse a used password. Also it must not be possible to easily compute yet unused pa # Systems based on a non-inversible function, e.g. cryptographically secure hash functions

...e Macronix 29LV320CVBC-90G Flash] chip. The ethernet ports are provided by a [http://www.delta.com.tw Delta] LFE8782 transformer. There are no obvious i ...om/release_notes/d103016.asp firmware page] also describes how to download a new firmware via TFTP. [http://openwrt.org/ OpenWRT] does not [http://wiki.

A composition of the topic can be found [[Properties of the Wireless Medium | ...in.de/~beier/pdfs/brn-06-802.11%20Network%20Structures.pdf presentation as a pdf].

...p://www.glink.com.tw/pdf/GLT5640L16-R3.3.pdf G-Link GLT5640L16-6TC], Flash a 2 MByte [http://www.spansion.com/products/Am29LV160B.html AMD/Spansion AM29

...elieved that fingerprints posess the two requirements necessary for use as a biometric criterion: ...s ever share exactly the same pattern. What is more: experience shows that a small amount (usually 12 to 18) of minute details (minutiae, see below) are

...ed time budget to read books. In order to learn as much as possible about a subject XYZ, which books should I read? (I can't read them all due to lack A: Obviously, I do not know the books yet.

Simple flooding algorithms simply forward a packet several times to increase the possibility that the packet will reach it's destination in a certain time interval or

The purpose of the XML Schema language consists in a XML document’s validation. Thus, you can create application specific cons ...and separate elements in the document. The attribute xmlns indicates, that a namespace declaration follows:

...put ejb-jar file is either a deployment unit intended for the Deployer, or a partially assembled application that is intended for another Application As ...and Application Assembler may be the same person or organization. In such a case, the person or organization performs the responsibilities described bo

- Carriage return bug after a wrong password entry<br> - Using shadow passwords (encrypted passwords hidden in a private file)

Aradial is a high performance RADIUS server with Tier 1 levels of reliability and scalab a multitude of pre-configured settings that support most Access Servers in th

- NCC-1701D is not a good choice<br> - A password which seems to be a random combination<br>

...nologies. It has been founded in 2001 by Sun and several partners to build a decentralized and open alternative to the centralized and proprietary Passp ...the use of [http://www.swig.org/ SWIG]. Closely related to LASSO is SOUK, a Python framework that uses LASSO and actually implements the Liberty Allian

Today there exist a lot of projects worldwide, using the WLAN-Technology, to realize wireless o also exist some research projects with a academic or commercial background.

...hieves a better worst-case delay performance than existing approaches with a fixed overhead. ...n more detail, if an erasure code has a message of size <math>M</math> and a replication factor <math>r</math> as input, it produces <math>M*r/b</math>

because in case of, e.g. a raid this would compromise the users' anonymity. # The user sends his authentication information along with a new public key PK1 to an identity provider. The identity provider must know

A PKI consists of a Registration Authority (RA) and a Certification Authority (CA). At the following Picture you can see how a signed certificate is generated.

...sses to share memory. Sharing memory for two processes means that there is a region of memory which both processes can access (read/write) such that bot ...his region starts at address MA, in Process B it starts at address MB. Let A write the value 0x23 to MA+4, that is, 4 bytes into the shared region. Then

...rner-Allen, Johnson, Ruiz, Lees, Welsh: Monitoring Volcanic Eruptions with a Wireless Sensor Network [http://earth.unh.edu/johnson/PAPERS/ewsn.pdf] * Werner-Allen, Lorincz, Ruiz, Marcillo, Johnson, Lees, Welsh: Deploying a wireless sensor network on an active volcano. IEEE Internet Computing, acce

SETI (Search for Extraterrestrial Intelligence) is a scientific area whose goal is to detect intelligent life outside of earth. To our knowledge such signals do not exist naturally. A discovery of those should therefor be caused by extraterrestrial technology

- Keeping a plaintext file of passwords is dangerous<br><br> - Entry is encrypted and only if the value matches a stored one, the login is accepted<br>

to a consecutive log before the data write. If a crash occurs during the write,

Click is a modular software router developed by MIT. * Flexible control of parallelism in a multiprocessor PC router ([[Media:Click-paper.pdf|PDF]])

An attack, where the hacker will extract the password directly from a person, who is authorized to access it by telling some plausible untruth is ...'. Insurance investigators for example often pretend on a phone call to be a desired victims doctor, so that they will get information concerning the vi

''Secret Sharing'' is used to split a secret (usually a key) into several pieces which are then given to distinct persons so that s == A Simple Approach ==

- A Dictionary Attack can be used, if a password file can be accessed (system can run tests offline)<br>

static void swap_byte(unsigned char *a, unsigned char *b); static void swap_byte(unsigned char *a, unsigned char *b)

...eless routers] - called Meraki mini - are currently available only through a beta program. ...m/products/partdetail?part=MT48LC16M16A2P-75 MICRON MT48LC16M16A2P-75] and a 8 MByte [http://www.sd.com SD] Flash. [http://www.realtek.com.tw/products/p

BitTorrent is a Peer2Peer filesharing protocol. It was designed in 2001 by Bram Cohen, to r ...belong to one file are named in a so called '''torrent-file''', which is a meata data file also containing the hash cheksums for each piece and additi

...nsparent switch for it's participants. It is my goal to make it useable as a variable multi-switch. Encryption and authentication will be added to secur * List of standard/basic papers a ''person skilled in the art'' should have read.

= Creating a Standard Development Environemnt = ...ory buildroot and copy the necessary files into it. You can choose between a tarball or filesystem image, which can be loop mounted into your running Li

...e OpenMoko is built on top of OpenEmbedded). In order to do this we create a new directory tree <code>openmoko-sar</code> next to <code>oe</code> and <c ...-devel-image.bb</code>. At a later time we plan to put this structure into a version control system.

...ombinations of letters, signs and numbers used to authenticate one user on a system.<br><br> <br><br>A further introduction is available [[Passwords - Introduction|here]].

This is about getting a mesh node to act as a internet gateway. There are different procedures for user- and kernel space ...g devices, doing NAT, ...) can be discussed separately. Especially we need a mechanism to detect, if we have internet connectivity.

* List of standard/basic papers a ''person skilled in the art'' should have read. For a list of currently available thesis topics see [http://sar.informatik.hu-ber

* List of standard/basic papers a ''person skilled in the art'' should have read. For a list of currently available thesis topics see [http://sar.informatik.hu-ber

* List of standard/basic papers a ''person skilled in the art'' should have read. For a list of currently available thesis topics see [http://sar.informatik.hu-ber

...ization und functioning of the METRIK testbed network. It's supposed to be a first guide for developers and scientists who do experiments on this networ The main purpose of the testbed network is to serve as a real-world scenario for testing and experimenting. In order to do that we u

In May 1999 Windows and MAC version were released and within a week 200.000 people downloaded and installed the client. ...e classic client) had 232.420 users with 494.090 computers. There is still a migration from the classic client (as described here) to the new BOINC clie

'''JavaBeans''' is a client-side component model. It is intended to be used for

'''Bugs''' are errors that are done at the implementation level. A well known example are buffer overflows. A very good description of buffer overflows has been written by Aleph One "Sm

** Difference in fulfilling a request * Used bandwidth for fulfilling a request (number of packets or bytes?)

...P or serial connection. At first we have to build both a debugger stub and a cross-debugger (note that the host debugger which is shipped with the linux ...fy an executable which is load or attach it to a running process. To debug a process with PID 333 for example, simply type

so that every write creates a consistent state. On a typical file system there are files, directories and pointers to these.

...ich an entity attempts to confirm that another entity is allowed to access a resource. For example, it is often desirable to grant access without requiring a unique identity. Familiar examples of [[authorization token]]s include keys

...mplex the user might have problems entering it correctly and especially in a case of urgent (or safety) operations this would be not useful.<br><br> ...mple:'' South African Prepaid Electricity with 20-digit numbers – although a third of the population is illiterate, entry errors were the major problem

This task requires knowledge in C/C++ and to a certain amount working with the compiler tools lex/flex and yacc/bison. There you find examples of working flex/bison code too and a makefiles.

[[Image:Brn.Gui-500Nodes.png|none|right|thumb|400px|Brn.Gui running a simulation with 500 nodes.]] ...in simulation code via the Brn.Measure framework. Furthermore, it is also a result browser for already completed simulations which were executed by the

...uler of the world *harharhar*. Some of these are presented here. There are a lot more techniques used that are not presented here.

...antenna will be connected to the WRT54GS through a cable, which is called a pigtail. The pigtail has two connectors: One that connects to the WRT54GS, ...can be used, but try to keep their length and the number of connectors at a minimum as they all reduce the strength of the received/transmitted radio s

With one-bit complex sampling this yields a frequency band of 2.5 MHz which is enough to handle doppler shifts for rela ...ted via the Internet to the clients. The client program computes a result (a set of candidate signals) and returns it to the server. As mentioned in the

.../wndw.net/pdf/wndw-ebook.pdf Wireless Networking in the Developing World], A practical guide to planning and building low-cost telecommunications infras * Pentland A, Fletcher R, Hasson A. [http://www.firstmilesolutions.com/documents/DakNet_IEEE_Computer.pdf DakN

* MSC Tracer provides on-line behaviour of a Click router embedded NS2 simulator. [[Image:Brntracer.png|thumb|250px|Desc

* the abbreviation for '''S'''imple '''O'''bject '''A'''ccess '''P'''rotocol The protocol serves as a distributed object protocol such as RMI or CORBA-IIOP. Thus, whereas RMI is

...atest communication and information exchange - but not without a price. As a result of this connection, your computer, your organization's network, and

<dt>User management</dt> <dd><ul><li>RP has a database with two unrelated tables: <ul><li>UserIDs and accompanying data</ ...fusing creation if this is the case (counters Sybil attack)</li><li>Create a new UserID and enter it into the database; at the same time enter the realn

...ew routing technologies or the extension of existing VoIP technology (e.g. a SIP extension) MAY result from this work, development of new VoIP technolog * If successful, this contribution will allow to give a statement whether VoIP in current mesh networks is possible, and if not, wh

...ization und functioning of the METRIK testbed network. It's supposed to be a first guide for developers and scientists who do experiments on this networ The main purpose of the testbed network is to serve as a real-world scenario for testing and experimenting. In order to do that we u

...ions are special [[one way functions]] that can be easily inverted knowing a secret or trapdoor.

...hardships on peers with slow links and those holding many unpopular files, a rule was established which gives uploading more points than downloading. Fu ...rg/events/worlds04/tech/full_papers/yang/yang_html/maze.html Deployment of a Large-scale Peer-to-Peer Social Network]

...f concept] of the [http://www.dtnrg.org DTN research group] views a DTN as a network of networks, as some sort of overlay on top of other nets, being ab ...ocator'' a node belonging to this network. Note that addressing ''within'' a region/network can be completely different, it's up to the network how this

* [[DistSim|DistSim]] is a framework for defining, executing and collecting the results of multiple si

...f Trust between peers is measured in a Matrix M. This N * N matrix defines a one-step rank among peers. ...normalized download volume that a peer i has received from a peer j during a period of time.

...://www.hu-berlin.de/ Humboldt University Berlin]. The goal is to construct a network of nodes (access points) which share Internet access over wireless ...nges and higher data rates, as soon as such equipment becomes available at a reasonable price.

The container provides a runtime-environment for an enterprise bean and offers services, like contai As a result the bean depends on the container in every aspect. There are three w

...sin for writing programs that run on unused workstations, typically within a single organization. ...cientific research and the creation of global communities centered arround a specific scientific interest.

...erent implementations: RMI/[[JRMP]] commonly just referred to as "RMI" and a [[CORBA]] compliant implementation called RMI-[[IIOP]]. When the client invokes a remote method a so called stub on the client side marhalls the invokation and sends it to t

** USB-A socket ''The enclosure can be opened by pressing the brackets with a slotted screwdriver '''towards''' the device.''

...project - especially by adding code for OpenWRT - feel free to ask us for a CD with the WRT Standardized Development Environment (in short WRTSDE), whi ...create a new empty directory, which will later contain a complete copy of a Linux installation - the WRT standardized development environment.

...shower. Creating a scale map of your bed room, living space, or kitchen is a great way to study about drawing maps. The home was found at 10050 Cielo Dr

...be setup in the city of Berlin and whether such a network can be build in a completely self-organizing/self-configuring way. The Berlin Roof Net projec A community network must be usable for inexperienced end users; thus self-org

Unfortunately there is a big dilemma dealing with passwords as described by Kaufman, Perlman and Spe A simple way to test passwords on their own security is issued by the DSB Zü

...Service Providers, though it may as well be used on any network that needs a centralized authentication and/or accounting service for its workstations. Radius supports a wide variety of authentication schemes. A user supplies his authentication data to the server either directly by answ

...Service Providers, though it may as well be used on any network that needs a centralized authentication and/or accounting service for its workstations. Radius supports a wide variety of authentication schemes. A user supplies his authentication data to the server either directly by answ

...nd credential]], in contrast, does not establish identity at all, but only a narrow right or status of the user or program. ...lled by insisting on an authentication procedure before access is granted. A few examples are given below.

...ovider’s tools. A client never references an entity bean instance directly—a client always references an entity EJBObject or EJBLocalObject whose class ...related entity bean never references another entity bean instance directly—a related entity bean, like any other local client of an entity bean, always

...ularly use the Project Seminar to report progress in each topic, following a fixed schedule - one topic / day, repeating the series after 4 weeks. #* Responsible: A. Zubow, M.Kurth

> update add testabcdef.sar.informatik.hu-berlin.de 300 A 127.0.0.1 > update delete testabcdef.sar.informatik.hu-berlin.de A

Also have a look at:

'''A:''' Check out the latest click configuration from https://sarforge.informat

It is sometimes viewed as a concept separate from software reliability. (Note that the separation betwe ...rity as an aspect of software dependability. After all, the reliability of a system can be defined as

...ularly use the Project Seminar to report progress in each topic, following a fixed schedule - one topic / day, repeating the series after 4 weeks. #* Responsible: A. Zubow, M.Kurth

be tested and fulfil several specifications. Sometimes a framework to solve an issue if you can teach a developer about a framework

...DART satisfies the following properties which can be seen as guideline for a scalable and efficient solution: Using dynamic addressing and appropriate routing, DART is a promising approach for achieving scalable routing in large ad hoc networks.

:A user registers a number of spam-accounts to download from his main-account. Thus he transfer ...d to normalized download volumes that ''i'' has received from ''j'' during a certain time period. In order to increase its local view of reputation, eac

as transmission medium to build a local area network. It also includes an infra-red technique for data-transm a group of stations communicating through an ''access point'' (AP),

:A user registers a number of spam-accounts to download from his main-account. Thus he transfer ...d to normalized download volumes that ''i'' has received from ''j'' during a certain time period. In order to increase its local view of reputation, eac