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Security - News

http://crypto-world.info

Crypto - News | Security - News

03 / 2005
Vybrali pro vás: TR - Tomáš Rosa, JP - Jaroslav Pinkava, PV - Pavel Vondruška, VK - Vlastimil Klíma

Analýza RFID firmy Texas Instrument

04.03.2005
Mistake number 1: The cryptographic algorithm is a proprietary 40-bit cipher (Schneier).

The encryption algorithm used in the TI DST tags is an unpublished, proprietary cipher that uses a 40-bit key. The algorithm was designed in the early 1990's by engineers at Texas Intruments, but is still being deploying in current systems. By today's standards, a 40-bit key is unacceptably short: advances in computing power have made such keys succeptable to brute-force key guessing attacks. Therefore, the actual security of the DST system rests with the secrecy of the proprietary algorithm used in the tags.
Zdroj: http://rfidanalysis.org/
Autor: JP



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