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Diffie–Hellman (DH) key exchange [nb 1] is a mathematical method of securely exchanging cryptographic keys over a public channel and was one of the first public-key protocols as conceived by Ralph Merkle and named after Whitfield Diffie and Martin Hellman. [1] [2] DH is one of the earliest practical examples of public key exchange implemented ...
Unique identifier. A unique identifier ( UID) is an identifier that is guaranteed to be unique among all identifiers used for those objects and for a specific purpose. [1] The concept was formalized early in the development of computer science and information systems. In general, it was associated with an atomic data type .
t. e. In psychoanalytic theory, the id, ego and superego are three distinct, interacting agents in the psychic apparatus, defined in Sigmund Freud 's structural model of the psyche. The three agents are theoretical constructs that Freud employed to describe the basic structure of mental life as it was encountered in psychoanalytic practice.
Dihydroergotamine ( DHE ), sold under the brand names D.H.E. 45 and Migranal among others, is an ergot alkaloid used to treat migraines. [7] It is a derivative of ergotamine. It is administered as a nasal spray or injection and has an efficacy similar to that of sumatriptan. Nausea is a common side effect. [8]
Universally unique identifier. A Universally Unique Identifier ( UUID) is a 128-bit label used for information in computer systems. The term Globally Unique Identifier ( GUID) is also used, mostly in Microsoft systems. [1] [2] When generated according to the standard methods, UUIDs are, for practical purposes, unique.
Prior to 2005, each state designed its own driver's license according to its own standards. In 2005, the U.S. Congress passed a controversial bill known as the REAL ID Act, which established uniform standards for the design and content of state drivers' licenses and delegated authority to the Department of Homeland Security to implement and regulate compliance with the Act.
Honduras. Cédula de identidad (national identity card) The Honduran national identity card is an electronic ID card, compulsory for all Honduran nationals at the age of 18. [36] Hong Kong. Hong Kong Identity Card (HKID) Identity cards have been used since 1949, and been compulsory since 1980.
Dehydroepiandrosterone ( DHEA ), also known as androstenolone, is an endogenous steroid hormone precursor. [4] It is one of the most abundant circulating steroids in humans. [5] DHEA is produced in the adrenal glands, [6] the gonads, and the brain. [7] It functions as a metabolic intermediate in the biosynthesis of the androgen and estrogen sex ...