NISTIR 7298 Revision 1, Glossary of Key Information Security Terms

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NIST IR 7298 Revision 1, Glossary of Key Information Security Terms False Acceptance – When a biometric system incorrectly identifies an individual or incorrectly verifies an impostor against a claimed identity SOURCE: SP 800-76 In biometrics, the instance of a security system incorrectly verifying or identifying an unauthorized person. It typically is considered the most serious of biometric security errors as it gives unauthorized users access to systems that expressly are trying to keep them out. SOURCE: CNSSI-4009 False Acceptance Rate (FAR) – The probability that a biometric system will incorrectly identify an individual or will fail to reject an impostor. The rate given normally assumes passive impostor attempts. SOURCE: SP 800-76 The measure of the likelihood that the biometric security system will incorrectly accept an access attempt by an unauthorized user. A system’s false acceptance rate typically is stated as the ratio of the number of false acceptances divided by the number of identification attempts. SOURCE: CNSSI-4009 False Positive – An alert that incorrectly indicates that malicious activity is occurring. SOURCE: SP 800-61 False Rejection – When a biometric system fails to identify an applicant or fails to verify the legitimate claimed identity of an applicant. SOURCE: SP 800-76 False Rejection Rate (FRR) – In biometrics, the instance of a security system failing to verify or identify an authorized person. It does not necessarily indicate a flaw in the biometric system; for example, in a fingerprint-based system, an incorrectly aligned finger on the scanner or dirt on the scanner can result in the scanner misreading the fingerprint, causing a false rejection of the authorized user. SOURCE: CNSSI-4009 The probability that a biometric system will fail to identify an applicant, or verify the legitimate claimed identity of an applicant. SOURCE: SP 800-76 Pg 74
NIST IR 7298 Revision 1, Glossary of Key Information Security Terms The measure of the likelihood that the biometric security system will incorrectly reject an access attempt by an authorized user. A system’s false rejection rate typically is stated as the ratio of the number of false rejections divided by the number of identification attempts. SOURCE: CNSSI-4009 Federal Agency – See Agency, See Executive Agency. Federal Bridge Certification Authority (FBCA) – Federal Bridge Certification Authority Membrane – Federal Bridge Certification Authority Operational Authority – The Federal Bridge Certification Authority consists of a collection of Public Key Infrastructure components (Certificate Authorities, Directories, Certificate Policies and Certificate Practice Statements) that are used to provide peer-to-peer interoperability among Agency Principal Certification Authorities. SOURCE: SP 800-32; CNSSI-4009 The Federal Bridge Certification Authority Membrane consists of a collection of Public Key Infrastructure components including a variety of Certification Authority PKI products, Databases, CA specific Directories, Border Directory, Firewalls, Routers, Randomizers, etc. SOURCE: SP 800-32 The Federal Bridge Certification Authority Operational Authority is the organization selected by the Federal Public Key Infrastructure Policy Authority to be responsible for operating the Federal Bridge Certification Authority. SOURCE: SP 800-32 Federal Enterprise Architecture – A business-based framework for governmentwide improvement developed by the Office of Management and Budget that is intended to facilitate efforts to transform the federal government to one that is citizen-centered, results-oriented, and market-based. SOURCE: SP 800-53; SP 800-18; SP 800-60; CNSSI-4009 Federal Information Processing Standard (FIPS) – A standard for adoption and use by federal departments and agencies that has been developed within the Information Technology Laboratory and published by the National Institute of Standards and Technology, a part of the U.S. Department of Commerce. A FIPS covers some topic in information technology in order to achieve a common level of quality or some level of interoperability. SOURCE: FIPS 201 Pg 75
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NIST IR 7298, Glossary of Key Infor
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NISTIR 7298 Revision 1, Glossary of Key Information Security Terms

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