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From: TimF	8/12/2005 7:26:39 PM
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Digital speed cameras could be illegal Can’t prove tampering By Nick Farrell: Thursday 11 August 2005, 06:50 THE USE of digital speed cameras might become a thing of the past as legal experts argue that it is too easy to tamper with the evidence. A case in Australia, where a bloke got off his speeding ticket because the prosecution could not prove that the evidence had not been tampered with, has set off a few shockwaves around the world. In the Sydney case, the Roads and Traffic Authority admitted yesterday it could not prove the authenticity of the pictures they take with digital cameras. At the centre of the question is the integrity of a mathematical MD5 algorithm used to uncrypt each picture and used as a security measure to prove pictures have not been doctored. Unfortunately, they couldn’t prove that it was impossible not to fiddle with the MD5, particularly as it has been known to be flawed since 1996. Even more serious flaws were discovered last year in the standard meaning that security experts are now looking elsewhere for encryption. It is a wonder that any law enforcement authority is still using it. The UK has suspended the deployment of speed cameras since July while a report is prepared on their use. It is not certain if this suspension is due to the quality of the evidence the cameras provide, or the fact that users tend to jam on their brakes when ever they see them, only to speed up again afterwards. theinquirer.net All speed camera fines in doubt August 10, 2005 EVERY fine issued by speed cameras could be invalid, after the Roads and Traffic Authority admitted yesterday it could not prove the authenticity of the pictures they take. news.com.au

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