Iris recognition relies upon the fact that every individuals retina has a unique structure. The iris landscape is composed of a corona, crypts, filaments, freckles, pits radial furrows and striatations. Iris scanning is considered a particularly accurate identification technology because the characteristics of the iris do not change during a persons lifetime, and because there are several hundred variables in an iris which can be measured. In addition, iris scanning is fast: it does not take longer than one or two seconds.
These are characteristics which have made iris scanning an attractive technology for high-security applications such as prison surveillance. Iris technology is also used for online identification where it can substitute identification by password. As in other biometric technologies, the use of iris scanning for the protection of privacy is a two-edged sword. The prevention of identity theft applies horizontally but not vertically, i.e. in so far as the data retrieval that accompanies identification and the data body which is created in the process has nothing to do with identity theft.
TEXTBLOCK 1/2 // URL: http://world-information.org/wio/infostructure/100437611729/100438658334
In what follows there is a brief description of the principal biometric technologies, whose respective proponents - producers, research laboratories, think tanks - mostly tend to claim superiority over the others. A frequently used definition of "biometric" is that of a "unique, measurable characteristic or trait of a human being for automatically recognizing or verifying identity" (
All biometric technologies are made up of the same basic processes:
1. A sample of a biometric is first collected, then transformed into digital information and stored as the "biometric template" of the person in question.
2. At every new identification, a second sample is collected and its identity with the first one is examined.
3. If the two samples are identical, the persons identity is confirmed, i.e. the system knows who the person is.
This means that access to the facility or resource can be granted or denied. It also means that information about the persons behaviour and movements has been collected. The system now knows who passed a certain identification point at which time, at what distance from the previous time, and it can combine these data with others, thereby appropriating an individual's data body.
TEXTBLOCK 2/2 // URL: http://world-information.org/wio/infostructure/100437611729/100438658188
Official name Church Of Scientology, religio-scientific movement developed in the United States in the 1950s by the author L. Ron Hubbard (1911-86). The Church of Scientology was formally established in the United States in 1954 and was later incorporated in Great Britain and other countries. The scientific basis claimed by the church for its diagnostic and therapeutic practice is disputed, and the church has been criticized for the financial demands that it makes on its followers. From the 1960s the church and various of its officials or former officials faced government prosecutions as well as private lawsuits on charges of fraud, tax evasion, financial mismanagement, and conspiring to steal government documents, while the church on the other hand claimed it was being persecuted by government agencies and by established medical organizations. Some former Scientology officials have charged that Hubbard used the tax-exempt status of the church to build a profitable business empire.
Based at the University of California's San Diego Supercomputer Center, CAIDA supports cooperative efforts among the commercial, government and research communities aimed at promoting a scalable, robust Internet infrastructure. It is sponsored by the