![]() ![]() In due course, OTAR shortly became the NATO standard. ĭue to the efficiency and vast cost savings inherent to OTAR, Commander Winters' methods were quickly adopted and spread Navy-wide, following which Vice Admiral J.O Tuttle, Commander of the Navy Telecommunications Command, the Navy "J6", shortly influenced the Joint Chiefs of Staff to bring all the other military services into compliance. In order to exploit the advantages of this technology, he conceived and initiated its first large scale practical application and deployment. Lieutenant Commander David Winters, an American naval officer in London and code master during the final years of the Cold War, was first to recognize the necessity and security potential of OTAR. OTAR was operationally introduced to the US Department of Defense via the Navy beginning in 1988. ![]() The term "OTAR" is now basic to the lexicon of communications security. Now also adopted for civilian and commercial secure voice use, especially by emergency first responders, OTAR has become not only a security technology, but a preferred basis of communications security doctrine world-wide. Although the acronym refers specifically to radio transmission, the technology is also employed via wire, cable, or optical fiber.Īs a "paperless encryption key system" OTAR was originally adopted specifically in support of high speed data communications because previously known "paperless key" systems such as supported by Diffie-Hellman key exchange, or Firefly key exchange technology (as used in the now obsolete STU-III "scrambled" telephone) were not capable of handling the high speed transmission volumes required by normal governmental/military communications traffic. It is also referred to as over-the-air transfer (OTAT), or over-the-air distribution (OTAD), depending on the specific type, use, and transmission means of the key being changed. Over-the-air rekeying ( OTAR) refers to transmitting or updating encryption keys (rekeying) in secure information systems by conveying the keys via encrypted electronic communication channels ("over the air"). Quality standards, event notability guideline, or encyclopedic content policy. Please expand this article with properly sourced content to meet Wikipedia's This article reads like a promotional text or a news article and may be largely based on routine coverage. ![]()
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