Audio is streamed directly from the publisher (media.grc.com) as published in their RSS feed. Play Podcasts does not host this file. Rights-holders can request removal through the copyright & takedown page.
Show Notes
Leo and I answer last week's Puzzler/BrainTeaser which explored the idea of using two private one-time pad "keys," like two padlocks, to securely convey a message between two parties, neither of whom would have the other's key. Then we continue our ongoing tour of fundamental crypto technology by describing the operation of Symmetric Block Ciphers.