Cybersecurity terminology · MLC-0102

Cybersecurity terms: H (93)

h1. An ECC domain parameter; the cofactor, a positive integer that is equal to the order of the elliptic curve...
H0The null hypothesis; i.e., the statement that the sequence is random.
H.323The International Telecommunications Union (ITU) standard for packet-switched network voice and video calling...
HAA failover feature to ensure availability during device or component interruptions.
hackerUnauthorized user who attempts to or gains access to an information system.
HAIPE, see high assurance internet protocol encryptor (HAIPE)
hand receiptA document used to record temporary transfer of COMSEC material from a COMSEC Account Manager to a user or...
hand receipt holder1. A user to whom COMSEC material has been issued a hand receipt. Known in EKMS and KMI as a Local Element.
handshakeProtocol dialogue between two systems for identifying and authenticating themselves to each other, or for...
hard copy keyPhysical keying material, such as printed key lists, punched or printed key tapes, or programmable, read-only...
hard diskA rigid magnetic disk that is permanently fixed within a drive unit and used to store data. It could also be...
Hard forkA change to a blockchain implementation that is not backwards compatible. Non-updated nodes cannot continue...
HardeningA process intended to eliminate a means of attack by patching vulnerabilities and turning off nonessential...
hardware1. Computer programs and data stored in hardware - typically in read-only memory (ROM) or programmable...
Hardware Asset Management1. An ISCM capability that identifies unmanaged devices that are likely to be used by attackers as a platform...
Hardware DeviceA discrete physical component of an information technology system or infrastructure. A hardware device may or...
Hardware DriverApplications responsible for establishing communication between hardware and software programs.
Hardware root of trustAn inherently trusted combination of hardware and firmware that maintains the integrity of information.
Hardware Security Module (HSM)1. A physical computing device that safeguards and manages cryptographic keys and provides cryptographic...
Hardware-Enabled SecuritySecurity with its basis in the hardware platform.
harm1. Any adverse effects that would be experienced by an individual (i.e., that may be socially, physically, or...
Hash algorithm1. See hash function. “Hash algorithm” and “hash function” are used interchangeably in this Recommendation.
Hash- Based Message Authentication Code1. Keyed-hash Message Authentication Code (as specified in FIPS 198-1).
Hash chainAn append-only data structure where data is bundled into data blocks that include a hash of the previous data...
hash digest1. The result of applying a hash function to data.
hash function1. A function that maps a bit string of arbitrary length to a fixed-length bit string. Approved hash...
Hash Message Authentication Code1. Keyed-hash Message Authentication Code (as specified in FIPS 198-1).
hash output1. The result of applying a hash function to a message. Also known as a "hash value."
Hash rateThe number of cryptographic hash functions a processor can calculate in a given time, usually denominated as...
hash value/result1. The result of applying a hash function to a message. Also known as a “hash value.”
Hash_DRBGA DRBG specified in SP 800-90A based on a hash function.
HashedThe process whereby data (e.g., a message) was input to a cryptographic hash function (see Cryptographic hash...
Hashing algorithmA sequence of steps to execute a cryptographic hash function (see Cryptographic hash function).
hazardA condition with the potential to cause injury, illness, or death of personnel; damage to or loss of...
Header1. A portion of a packet that contains layer-specific information such as addresses.
Health and Human Services, see HIPAA
Health Information Technology for Economic and Clinical Health Acta 2009 law designed to stimulate the adoption of electronic health records (HER) in the United States
Health Insurance Portability and Accountability Act1. A federal statute that called on the federal Department of Health and Human Services to establish...
Health TestingTesting within an implementation immediately prior to or during normal operation to determine that the...
healthcare identifieridentifier of a person for exclusive use by a healthcare system
HeapA software data structure used for dynamic allocation of memory.
hidden Markov modelA Markov model in which the system being modeled is assumed to be a Markov process with unobservable states...
high assurance internet protocol encryptor (HAIPE)Device that provides networking, traffic protection, and management features that provide CS services in an...
high assurance internet protocol encryptor interoperability specification (HAIPE-IS)Suite of documents containing the traffic protection, networking, and interoperability functional...
High AvailabilityA failover feature to ensure availability during device or component interruptions.
high impact1. The loss of confidentiality, integrity, or availability that could be expected to have a severe or...
high-dimensionalA statistic composed of many numbers - e.g. a histogram with 50,000 bins, or a vector with 1 million elements.
high-impact system1. An information system in which at least one security objective (i.e., confidentiality, integrity, or...
high-power transmitterFor the purposes of determining separation between RED equipment/lines and RF transmitters, high-power is...
High-Value Asset1. Information or an information system that is so critical to an organization that the loss or corruption of...
HIPAA1. A federal statute that called on the federal Department of Health and Human Services to establish...
HIPAA Privacy Rule1. Establishes national standards to protect individuals' medical records and other personal health...
HITECH Acta 2009 law designed to stimulate the adoption of electronic health records (HER) in the United States
H(M)A hash value that is generated on M.
HMAC1. A message authentication code that uses a cryptographic key in conjunction with a hash function.
HMAC_DRBGA DRBG specified in SP 800-90A based on HMAC.
HMAC-hash1. The HMAC algorithm using the hash function, HASH (e.g., HASHcould be SHA-1). See FIPS 198-1 for the...
HMAC-PRFThe HMAC function being used as a PRF.
HMIThe hardware or software through which an operator interacts with a controller. An HMI can range from a...
holdoverAn operating condition of a clock which has lost its controlling reference input, is using its local...
Homeland Security Presidential Directive-12Homeland Security Presidential Directive; HSPD-12 established the policy for which FIPS 201-2 was developed.
honeypotA system (e.g., a web server) or system resource (e.g., a file on a server) that is designed to be attractive...
host1. A host is any hardware device that has the capability of permitting access to a network via a user...
Host KeyA public key used for authenticating a host in the SSH protocol to hosts that want to communicate with it...
Host NameHost names are most commonly defined and used in the context of DNS. The host name of a system typically...
Host operating system1. In a hosted virtualization solution, the OS that the hypervisor runs on top of.
Host-Based FirewallA software-based firewall installed on a server to monitor and control its incoming and outgoing network...
host-based intrusion detection and prevention systemA program that monitors the characteristics of a single host and the events occurring within that host to...
host-based securityA set of capabilities that provide a framework to implement a wide-range of security solutions on hosts. This...
Hosted virtualizationA form of full virtualization where the hypervisor runs on top of a host OS.
HostnameHostnames are most commonly defined and used in the context of DNS. The hostname of a system typically refers...
Hotfix1. Microsoft’s term for “patch.”
HotwashA debrief conducted immediately after an exercise or test with the staff and participants.
HSM, see Hardware Security Module (HSM)
HSNAn integrated terrestrial and space infrastructure comprised of independently owned and operated segments...
HSPD-12Homeland Security Presidential Directive; HSPD-12 established the policy for which FIPS 201-2 was developed.
HTTPA standard method for communication between clients and Web servers.
HTTPSA standard method for communication between clients and Web servers.
human biasA form of bias that results from failures in the heuristics humans use to make decisions.
Human User Interface CapabilityThe ability for an IoT device to communicate directly with people.
human-machine interfaceThe hardware or software through which an operator interacts with a controller. An HMI can range from a...
hunt teamA group of individuals that operate within consenting customer networks and systems to detect, characterize...
HVA1. Information or an information system that is so critical to an organization that the loss or corruption of...
HWAMSee Capability, Hardware Asset Management.
H(x)1. A cryptographic hash function with x as an input.
Hybrid cloudThe cloud infrastructure is a composition of two or more distinct cloud infrastructures (private, community...
hybrid control1. A security or privacy control that is implemented for a system in part as a common control and in part as...
Hybrid Satellite NetworkAn integrated terrestrial and space infrastructure comprised of independently owned and operated segments...
hybrid security control1. A security control that is implemented in an information system in part as a common control and in part as...
hyperparameterIn a differential privacy mechanism, a setting or parameter that controls a portion of the mechanism’s...
Hypertext Transfer Protocol (HTTP)A standard method for communication between clients and Web servers.
Hypertext Transfer Protocol over Transport Layer SecurityHTTP transmitted over TLS.
Hypertext Transfer Protocol Secure (HTTPS)HTTP transmitted over TLS.
hypervisor1. The virtualization component that manages the guest OSs on a host and controls the flow of instructions...
Hypothesis (Alternative)A statement Ha that an analyst will consider as true (e.g., Ha: the sequence is non-random) if and when the...
Hypothesis (Null)A statement H0 about the assumed default condition/property of the observed sequence. For the purposes of...

93 of 4,693 terms in Cybersecurity terminology (MLC-0102). Request the full dataset.