Month: May 2017

What the heck is PKI, Public Keys, Private Keys, Infrastructure, Security, Sign this Encrypt that..what?!

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I’m going to start going over some Core Concepts, a lot of these I ask in interview questions. “What is PKI? How do you Encrypt, Decrypt, Sign and Verify Data?” The Answers I get are quite wrong or not quite right most of the time. PKI, Public Key Infrastructure Covered, read the wiki link, TLDR: it’s our ssl chaining system Continue reading What the heck is PKI, Public Keys, Private Keys, Infrastructure, Security, Sign this Encrypt that..what?!→

What is a real email signature.

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So while at InteropITX, the use case was given that your employees should expect a consistent signature from co-workers to ensure phishing hasn’t been used to gather information from internal staff to coordinate an attack. HOWEVER, “Thanks, -Jake” is no cryptographically sane signature, and it’s not HARD to sign emails with your private key, —–BEGIN PGP SIGNED MESSAGE—– Hash: SHA512 Continue reading What is a real email signature.→