I roto i nga wa tata nei, IBM kaimahi hangaia te hātepe i riro i te Federal (i.e., US) Raraunga whakamunatanga Paerewa; Whitfield Diffie ko Martin Hellman whakaputaina to ratou hātepe matua whakaaetanga; a ka whakaputaina te hātepe RSA i roto i Martin Gardner o Scientific American tīwae. whai muri i to ratou mahi i roto i te 1976, ka riro te reira rongonui ki te whakaaro pūnaha whakamunatanga i runga i ngā raruraru pāngarau e he ngāwari ki te kī engari kua kitea uaua ki te whakaoti. Mai reira, kua cryptography kua riro i te taputapu whānui whakamahia i roto i te kōrero, whatunga rorohiko, me te haumaru rorohiko whānui mōhio. Ka taea e te pupuri i te tahi mau tikanga whakamunatanga hou anake ratou mau taviri ngaro, ki te mea he uaua pāngarau pāngarau intractable, pērā i te loggerization ranei te logarithm wehe, i reira he raruraru hohonu hononga ki te Federal (i.e., US) Raraunga whakamunatanga Paerewa; i reira ko te mea tino nui, engari i reira e kore e taea ki te whakaoti i roto i te mahi
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