PGP & GPG Email For The Practical Paranoid
PGP & GPG - Email For The Practical Paranoid PGP & GPG - Email For The Practical Paranoid PGP & GPG - Email For The Practical Paranoid
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GPG:GNUPrivacyGuard; PGP:PrettyGoodPrivacy; 这2个实现都符合OpenPGP标准。