Whatever happened to PGP?

Monday, 22 May 2006, 12:35 AM EST

PGP is often thought of as an encryption system, but your private key is a digital signature that can prove who your message comes from, as well as showing that it hasnít been tampered with.

The reason a Public Key Infrastructure doesnít look like a widespread identity system is that it needs a web of trust; if somebody you know has signed my PGP key, then you take their word that I am who I say I am. That works well for close groups of friends Ė or for the corporations and government departments around the world who rely on PKIs based on the commercial PGP offerings or the OpenPGP SDK thatís now available.

At The Register.

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Infographic: 25 years of the firewall

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