Tag: pki

  • Secure VOIP calls

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    by

    Tom Raftery
    in

    Phil Zimmermann is a living legend – a cryptographer he released a cryptographic program PGP for the encryption of email and files on computers as open source freeware in 1991. Zimmermann was pursued through the courts by the US Customs in a criminal investigation for exporting cryptographic software in breach of US export regulations. The…