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David Elliott Bell
David Elliott Bell (born in 1945) is an American mathematician and computer security pioneer. While working at Mitre Corporation, MITRE Corporation, he and Leonard J. LaPadula co-developed the highly influential Bell–LaPadula model. In 2012, Bell was interviewed as part of an effort by the National Science Foundation to document the “Building an Infrastructure for Computer Security History.” In recognition of his contributions to the computer security field, Bell was inducted into the Cyber Security Hall of Fame in 2013. The first step in the Bell-LaPadual model development provided tools for guiding and analyzing computer systems under development. The last step in the model development was the application of the general model to the Multics operating system. When the Computer Security Center at the Department of Defense published its Trusted Computer System Evaluation Criteria in 1983, the Bell-La Padula model was the only security model included to illustrate the "s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liberal, Kansas
Liberal is the county seat of Seward County, Kansas, United States. As of the 2020 census, the population of the city was 19,825. Liberal is home of Seward County Community College. History Early settler S. S. Rogers built the first house in what would become Liberal in 1888. Rogers became famous in the region for giving free water to thirsty travelers. Reportedly, Liberal gained its name from the common response to his acts of kindness, "That's very liberal of you."''History: Over One Hundred Years of Being "Liberal"'' - at City of Liberal.com In 1885 Rogers built a general store, and with it came an official |
Trusted Information Systems
Trusted Information Systems (TIS) was a computer security research and development company during the 1980s and 1990s, performing computer and communications (information) security research for organizations such as NSA, DARPA, Army Research Lab, ARL, AFRL, Space and Naval Warfare Systems Command, SPAWAR, and others. History TIS was founded in 1983 by NSA veteran Steve Walker, and at various times employed notable information security experts including David Elliott Bell, Martha BranstadJohn Pescatore Steve Crocker, Marcus J. Ranum, Marcus Ranum, Wei Xu, John Williams Steve Lipner and Carl Ellison. TIS was headquartered in Glenwood, Maryland, in a rural location. The company was started in Walker's basement on Shady Lane in Glenwood, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Science And Technology Hall Of Fame Inductees
Science is a systematic endeavor that builds and organizes knowledge in the form of testable explanations and predictions about the universe. Science may be as old as the human species, and some of the earliest archeological evidence for scientific reasoning is tens of thousands of years old. The earliest written records in the history of science come from Ancient Egypt and Mesopotamia in around 3000 to 1200 BCE. Their contributions to mathematics, astronomy, and medicine entered and shaped Greek natural philosophy of classical antiquity, whereby formal attempts were made to provide explanations of events in the physical world based on natural causes. After the fall of the Western Roman Empire, knowledge of Greek conceptions of the world deteriorated in Western Europe during the early centuries (400 to 1000 CE) of the Middle Ages, but was preserved in the Muslim world during the Islamic Golden Age and later by the efforts of Byzantine Greek scholars who brought Greek ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Computer Security Organizations
A computer is a machine that can be programmed to carry out sequences of arithmetic or logical operations (computation) automatically. Modern digital electronic computers can perform generic sets of operations known as programs. These programs enable computers to perform a wide range of tasks. A computer system is a nominally complete computer that includes the hardware, operating system (main software), and peripheral equipment needed and used for full operation. This term may also refer to a group of computers that are linked and function together, such as a computer network or computer cluster. A broad range of industrial and consumer products use computers as control systems. Simple special-purpose devices like microwave ovens and remote controls are included, as are factory devices like industrial robots and computer-aided design, as well as general-purpose devices like personal computers and mobile devices like smartphones. Computers power the Internet, which links bi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Computer Access Control
In computer security, general access control includes identification, authorization, authentication, access approval, and audit. A more narrow definition of access control would cover only access approval, whereby the system makes a decision to grant or reject an access request from an already authenticated subject, based on what the subject is authorized to access. Authentication and access control are often combined into a single operation, so that access is approved based on successful authentication, or based on an anonymous access token. Authentication methods and tokens include passwords, biometric scans, physical keys, electronic keys and devices, hidden paths, social barriers, and monitoring by humans and automated systems. Software entities In any access-control model, the entities that can perform actions on the system are called ''subjects'', and the entities representing resources to which access may need to be controlled are called ''objects'' (see also Access Control ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Computer Security Models
A computer is a machine that can be programmed to carry out sequences of arithmetic or logical operations ( computation) automatically. Modern digital electronic computers can perform generic sets of operations known as programs. These programs enable computers to perform a wide range of tasks. A computer system is a nominally complete computer that includes the hardware, operating system (main software), and peripheral equipment needed and used for full operation. This term may also refer to a group of computers that are linked and function together, such as a computer network or computer cluster. A broad range of industrial and consumer products use computers as control systems. Simple special-purpose devices like microwave ovens and remote controls are included, as are factory devices like industrial robots and computer-aided design, as well as general-purpose devices like personal computers and mobile devices like smartphones. Computers power the Internet, which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Computer Security
Computer security, cybersecurity (cyber security), or information technology security (IT security) is the protection of computer systems and networks from attack by malicious actors that may result in unauthorized information disclosure, theft of, or damage to hardware, software, or data, as well as from the disruption or misdirection of the services they provide. The field has become of significance due to the expanded reliance on computer systems, the Internet, and wireless network standards such as Bluetooth and Wi-Fi, and due to the growth of smart devices, including smartphones, televisions, and the various devices that constitute the Internet of things (IoT). Cybersecurity is one of the most significant challenges of the contemporary world, due to both the complexity of information systems and the societies they support. Security is of especially high importance for systems that govern large-scale systems with far-reaching physical effects, such as power distribution, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electronic Data Systems
Electronic all cash BSN acc: 1311729000110205 Data Systems (EDS) was an American multinational information technology equipment and services company headquartered in Plano, Texas which was founded in 1962 by Ross Perot. The company was a subsidiary of General Motors from 1984 until it was spun off in 1996. EDS was acquired by Hewlett-Packard in 2008. History Electronic Data Systems (EDS) was founded in 1962 by H. Ross Perot, a graduate of the United States Naval Academy and a successful IBM salesman who first-hand observed how inefficiently IBM's customers typically were using their expensive systems. Somewhat to IBM's chagrin, since the company wanted to sell as many computers as possible, Perot made a fortune changing this. An early success was in matching the unused computer time at Southwestern Life Insurance Company with the computing needs of rapidly expanding Collins Radio, both located in Dallas, Texas. Perot knew the inside details of both companies. In its ea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mitretek Systems
Noblis is an American not-for-profit corporation and a science, technology, and strategy organization that delivers technical and advisory solutions to federal government clients. The company’s work is applied to a wide array of federal domains, including civilian services, defense, homeland security, intelligence and law enforcement. History In 1996, Mitretek Systems was formed as a nonprofit corporation with a charter to perform research and engineering science and technology as a spin-off from the MITRE Corporation. Between 1996 and 2006, Mitretek Systems focused on national security threats, chemical and biological warfare, biometrics, electronic transactions, traffic congestion, patient safety, environmental sustainability, and renewed energy resources. Mitretek sponsored research projects included: analyzing and implementing technologies to keep information secure on the Internet, communicating voice and data by using Internet Protocol in the event of a national emerg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyber Security Hall Of Fame
The National Cyber Security Hall of Fame, founded by Larry Letow and Rick Geritz, was established in 2012 to recognize the contributions of key individuals in the field of cyber security; its mission statement is, ''Respect the Past - Protect the Future.'' According to its website, it is designed to honor the innovative individuals and organizations which had the vision and leadership to create the fundamental building blocks for the cybersecurity Industry. The organization also highlights major milestones in the industry's 40-year history through timelinerepresentation, which includes inductees and their corresponding accomplishments. Nominations Nominations into the Cyber Security Hall of Fame are submitted in the following categories, then reviewed by the Advisory Committee, chaired in 2013 by Mike Jacobs. *Technology *Policy *Public Awareness *Education *Business Founders Larry Letow, Operations Partner for Interprise Partners, and Rick Gertiz, CEO of SwingAI Advisory board ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kansas
Kansas () is a state in the Midwestern United States. Its capital is Topeka, and its largest city is Wichita. Kansas is a landlocked state bordered by Nebraska to the north; Missouri to the east; Oklahoma to the south; and Colorado to the west. Kansas is named after the Kansas River, which in turn was named after the Kansa Native Americans who lived along its banks. The tribe's name (natively ') is often said to mean "people of the (south) wind" although this was probably not the term's original meaning. For thousands of years, what is now Kansas was home to numerous and diverse Native American tribes. Tribes in the eastern part of the state generally lived in villages along the river valleys. Tribes in the western part of the state were semi-nomadic and hunted large herds of bison. The first Euro-American settlement in Kansas occurred in 1827 at Fort Leavenworth. The pace of settlement accelerated in the 1850s, in the midst of political wars over the slavery debate. Wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bell–LaPadula Model
The Bell–LaPadula Model (BLP) is a state machine model used for enforcing access control in government and military applications. It was developed by David Elliott Bell and Leonard J. LaPadula, subsequent to strong guidance from Roger R. Schell, to formalize the U.S. Department of Defense (DoD) multilevel security (MLS) policy. The model is a formal state transition model of computer security policy that describes a set of access control rules which use security labels on objects and clearances for subjects. Security labels range from the most sensitive (e.g., "Top Secret"), down to the least sensitive (e.g., "Unclassified" or "Public"). The Bell–LaPadula model is an example of a model where there is no clear distinction between protection and security. Features The Bell–LaPadula model focuses on data confidentiality and controlled access to classified information, in contrast to the Biba Integrity Model which describes rules for the protection of data integrity. In ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
