에 의하여 Sarah Spiller

정부의 ID 카드 방식은 이상의 6 백만인이 그것의 데이타베이스에 등록될 경우 "틀린 성냥"의 수천을, 학자 요구했다 줄 것이다.

사람의 유일한 생리적인 특성을 보전되는 생물 측정 자료는 카드에 있는 마이크로칩에 저장될 것이다.

그러나 죤 Daugman 교수는, 중요한 생물 측정 측정이 중요한 문제를 일으키기 때문에 말해 지문을 사용한.

신원 및 여권 서비스는 교수 요구를 부정했다 Daugman.

케임브리지 의 컴퓨터 실험실의 대학의 Daugman 교수는, 홍채 - 망막에 통과하는 빛 양을 통제하는 눈의 착색된 부분 -의 생물 측정 검사를 사용하여, 하고자 했다 준다 지문 보다는 더 나은 정확도를 말했다.

Plans to include the iris scan in the ID card biometric were put on hold by the government last December.

A small scale system using iris identification is operated by immigration officials at Heathrow and other UK airports.

Professor Daugman, who devised a mathematical process which converts the measurement of an iris into a record of identity, told BBC Radio 4’s File On 4, he expected problems once the government’s database passed the six million mark:

“Typically if you have a database of say six million people, the false match rate against them will be about one in a 1,000, and the true match rate is something like 95%.

“So this means that by the time the UK system had enrolled say six million people, which means two or three years into the roll-out, about one new person in a 1,000 will be making false matches against the database.”

He added that when the next million people were added to the database there would be 1,000 false matches.

Professor Daugman, who received an OBE for his work in 1999, said the bigger the database, the bigger the problem:

“For the scheme as a whole it means that it can no longer deliver the goal of one citizen, one identity, because it cannot survive so many comparisons without making false matches - so there will be false claims of multiple identities.

“It could still be useful for other purposes but I think it would have failed for reasons that are probably to date, predictable.”

He added: “I don’t want to be very pessimistic and say this whole system is doomed to fail but I will say that just from analysing the mathematical requirements, if it is just fingerprint, it is unlikely to be able to succeed.”

But James Hall, the chief executive of The Identity and Passport Service told File On 4: “We’ve always recognised that there will be question marks thrown up during the matching process and that will need to get resolved by manual intervention.

“We will work very closely with a biometric advisory group drawn from a number of experts from around the world who are giving very supportive advice around this.”

Mr Hall said: “We haven’t identified a date at which we will implement iris scanning. Our view is that either fingerprint or iris’s would work very effectively.

He added that fingerprints had been the basis of schemes started across Europe for travellers to the USA.

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