Computer virus in cats - Part 2

 How the virus to penetrate supermarkets 

First, the attacker will buy a product with RFID tags, as usual. At home, he switch label electronic tags are empty and the device is free sold. When re-shuffle of the product to supermarkets, the cashier will scan the label that has been manipulated before. In tests, Tanenbaum write 'Quine', that is a program that reproduce the source-text to its own. The Attack is the target Oracle database. 

Noted: In Neuss, Metro tests RFID labels for supermarkets of the future. 


Still need a few more years before the cashier in supermarkets, read RFID tags. Store retail chain Metro Group to try new techniques for logistic goods and services customers. For them, only about 10 years time the price will be quite economical label to apply to every package. Currently, some containers and palettes have been using the code with the electronic chip that can be rewritten. 

"We take very serious warning Tanenbaum," comments Harald Kelter from BSI (Bureau of Technical Information Security Germany) on a warning from Amsterdam. However, he did not want to call this as RFID virus. "It's a normal PC virus. We also did not mention toh virus floppy just because malwarenya stored on floppy disks. "Scenario-attack through SQL injection is basically not new. Cleft used long-known, only a new channel transfernya. 

BSI a research titled 'Risks and the possibility of RFID application system' revealed that the experts did not consider the security of the virus through RFID. The research discusses in detail the various types of attacks, but attacks the virus is not included. 

"Danger is not think about when we make research 2 years ago," said Harald Kelter. He also saw lab experiment with a database without the full protection dikonstruksi. "For that, a simple label is not sufficient," said Kelter. 

However, does not mean that such a theme with RFID malware is completed. In tests Tanenbaum, RFID tags-only functions as a virus. Goods in supermarkets also certainly not your cat infected with the virus. 

Unknown risks: RFID on a debit card 
On the other variants RFID encrypt the data and perform calculations directly on the chip, story can be more interesting, for example, the RFID functions as a dual-interface functions of the smartcard with a debit card, or to control access. "It is interesting to know whether the RFID chip of its own, not only database, it can be attacked or not," said Kelter. 

Full TAK: A security research BSI give a description of risks RFID, but it does not offend the virus. 


What happens if the RFID chip is encrypted with algorithms that have experienced inadequate by some car manufacturers a year ago. Portal road barrier they are based on RFID can be penetrated! Data on the transponder from Texas Instruments is protected with a key 40 Bit. To read this key, security experts only takes 15 minutes. Further manipulation becomes easier.

source : chip.co.id

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Computer virus in cats - Part 1

Computer virus in cats 

RFID labels on the product, RFID chip in the animal, and now the first RFID virus. Moreover, the technique brought RFID eongan than a cat in the future. 

Cattle are marked, dog and cat also put RFID chip. As the 'electronic sign', the chip will be overseeing the trip since the meat-cutting diternakkan home to animals. Pets that are found can be identified through a 15-digit code that is contained in the chip. However, the practical benefits of RFID is still in a high security risk. 

To show the potential danger, the scientists at the Vrije Universiteit Amsterdam has chosen a cat as the object demo. 'Are you a cat infected with a computer virus', a research team leader Professor. Andrew Tanenbaum in a scientific publication. In any posts in the Computer Systems Group researchers show how RFID chip attacked a database. 

An attack scenario is theoretically possible through such a cat is described Tanenbaum. A hacker insert a chip that has been manipulated into a cat. He brought a cat to the vet and identification system will show things that are not normal. Data is transferred to a central database. Some hours later the system to delete data on the RFID chip cat. Finally, strange things happen. ID display system and frozen display the message 'All your animals are owned by us'. 


Marked: The veterinarian, RFID chip that is injected into a small body of a cat. 

Data-in RFID tags can not be trusted fully, said the team Tanenbaum warns. "During this time we think that only the data that will be falsified attack on RFID. However, hackers are also able to attack the database through SQL-injection or buffer-overflow, "said Tanenbaum. In the same way, malware, worms, and RFID viruses can spread. 

Although security is not possible rift be on the chip, but on a database programmer, the RFID feel attacked. Asosiasinya, AIM, publish a direct response to the title 'Cats you safe'. Basically, the team considered Tanenbaum has created a model system that has a weakness. According to AIM, RFID-tags used in the animal can not be rewritten. 


Infected: In this kind of tags researchers in Amsterdam enter first RFID virus. 

AIM may be correct because the Computer Systems Group in Amsterdam also does not discuss the more likely a cat as a virus. They create a scenario for the actual test in which RFID will be more of a role again in the future: They mensimulasi a computer supermarkets.

source : chip.co.id

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Radio Frequency Identification

RFID is the abbreviation of Radio Frequency Identification. Simply defined as the effort Identification objects using radio frequency. 

There are 3 components that are required in an RFID system, the RFID Tag, RFID reader and RFID midleware. RFID tag is a micro-transmitter placed on the object to be identified. The form of the various tags in accordance with the functionality that you want to achieve. Tags on the market that have shaped bracelet, cards, buttons, and others. RFID tags are classified based on the frequency of work, there is a Low Frequency (LF) Modulation, MF, UHF and microwave. Tag next classification method is based on updating the data. There are read only, read and write and write once. Last is the classification tags based power transmission mode is active tags and passive tags. On a ration power due to internal, passive because the resources taken from the transmission wave induction elektromagnetik reader. 

The second component is the RFID reader or often called interogerator. Function to read and detect the presence of RFID tags on the distance bacanya. Data to be read and forwarded to midleware to be processed as needed. In selecting reader 2 things must be considered. The first problem with the tag reader kompatabilitas, because not all the tags will match with the reader, there are spouses of each. Second consideration is the distance read reader. Reader cheap may only have read the near distance. Reader expensive distance will have read very much especially when the tag is used bertipe active. 

The second component is midleware. In fact midleware only because the software is located in the middle is often referred to midleware. Its duty is to make the data read by the RFID reader. Normal for a complete RFID package expensive, RFID midlewarenya already included. But it can also midleware designed in accordance with the needs banyka programming language. Collaboration with the database and network connection capabilities into additional value that are easy to crystallize. 

The last part will discuss the function. RFID can be applied in many areas that require identification capabilities. Being tracking object identifier component, as an e-card that can be enabled to pass-toll, bus ticket or access control card. For tracking goods, small children, pets and so on.

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