Experimenting with an unbreachable electronic cipher

Article Abstract:

Cryptographers, foreseeing a need for digitized documents that are tamperproof, are searching for ways to prevent forgery. Scientists at Bell Communications Research (Bellcore) are testing a possible solution to this problem. The Bellcore method uses digital time-stamping in a way that certifies when a document is accepted into a system and allows future verification that no tampering has occurred. A possible use for this method is as a replacement for handwritten laboratory notebooks. Verification of the timing of a scientific observation or an engineering design can be important for patent applications. According to researchers at Bellcore, their technique could be used in any circumstance in which it is important to know when a document was created or when it was modified. Two Bellcore researchers recently criticized the National Institute of Standards and Technology's proposed Digital Signature Standard, saying that the proposed standard has a weakness inherent in it that renders forgery possible.

Management consulting services, Standards, Safety and security measures, Standard, Standardization, Encryption, Data encryption, Prevention, Security measures, Data security, Computer crimes, Data communications, Telecommunications transmission technologies, United States. National Institute of Standards and Technology, Forgery, Cryptography, Ciphers, Security Systems, Computer Crime

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Businesses go back to school; community colleges bring high technology to the shop floor

Article Abstract:

Small- and medium-sized manufacturing businesses turn to local community colleges for the education services needed to computerize operations, making the colleges the center of technology transfer for the manufacturing industry. About 1,200 programs in the country teach six million students modern manufacturing methods, such as just-in-time inventory management. Federal agencies are often involved as well, creating three-way alliances in which the federal laboratory supplies technical expertise, industry supplies money and equipment and community colleges do the teaching. The Hudson Valley Community College, for example, forms the Advanced Manufacturing Resource Center with the Northeast Manufacturing Technology Center at Rensselaer Polytechnic Institute, in which students are taught computer-aided design and other skills both in the classroom and at the job site.

Manufacturing industries, not elsewhere classified, Manufacturing industry, Manufacturing industries, Education, Curricula, Manufacturing, Business planning, Continuing education, Technology transfer, Junior colleges, Community colleges, Computer Education, Curriculum, National Government, Government Funding, Government aid, Hudson Valley Community College

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Adding lanes to data highways: project seeks wider use of fiber optics

Article Abstract:

Ongoing research at Bell Communications Research Inc, Columbia University, and elsewhere, aims to expand the amount of data that can be transmitted on a fiber-optic communications system. Communication systems are envisioned that would allow telephones, computers or video equipment to tune receivers, so that particular devices would receive their data via particular frequencies of light. According to Anthony S. Acampora, who heads the Center for Telecommunications Research at Columbia University's School of Engineering, this project has the support of Bell Communications Research, Philips NV, GTE and the National Science Foundation. Professor Acampora says that today's fiber-optic systems are limited by the speeds of existing opto-electronic switches, but the 'electro-optical bottleneck' would not be a problem if data was sent at different light frequencies.

Commercial nonphysical research, Fiber optics, Optoelectronic devices, Telecommunications, Future Technologies, Columbia University. Center for Telecommunications Research, Acampora, Anthony S.

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