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A Major Comsec Chailenge: @7IL-¥YsS2 Washington DC's first private celephone line—~between the office of che Army's chief signal officer…
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—SEERET- is éssential and the very high line rental expense can de justified. A diffecent crypto-equipment is required for each of these…
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of che current system is in the final developmental stages. When this system (WALBURN) is implemented. ic wil! permit the encryption of…
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—TSEGREE it. It.took ten trucks (literally) to carry one cerminal of our only secure voice equipment from the beachhead to General…
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» Géyptologically compatable with exisang equipments. which will permit subscriber-to-subscriber security for all Unal the bulk of ‘calis,…