Fundamentals of Modern Cryptography
      
      This presentation covers the fundamentals of modern digital
      cryptography, including popular methods of encryption,
      hashing, and key exchange.  Specific topics include aes, sha,
      mac, Diffie-Hellman, and rsa.  The mathematics behind primes,
      modulus, and elliptic curves is also covered.
      
Duration: 60 minutes, 75 minutes with
      questions
      
- SouthEast LinuxFest, June 14, 2025
 - All Things Open RTP Meetup, April 13, 2021 (video)
 - Security Shell, November 16, 2017
 
Secure
      Communication with Tls
      
      Tls/ssl forms the backbone of
      secure digital communication.  This presentation covers the
      details about the tls protocol
      and its use of lower-level cryptographic methods.  There is
      also an extensive section about the creation and use of digital
      certificates for authentication, with examples from web servers
      and Postgres.  This can be presented after my Fundamentals of Modern Cryptography presentation.
      
Duration: 60 minutes, 75 minutes with questions
      
- SouthEast LinuxFest, June 14, 2025
 - Fosdem, February 6, 2022 (video)
 - Security Shell, November 16, 2017
 
Cryptographic
      Hardware Configuration and Features
      
      Storing cryptographic keys is a big challenge in any digital
      encryption solution.  This presentation explains how cryptographic
      hardware enables private key usage while preventing the keys from
      being viewed or copied.  It focuses primarily on the configuration
      and features of Yubikey cryptographic hardware.
      
Duration: 60 minutes, 75 minutes with questions
      
- Security Shell Meet Up, April 26, 2018
 
Using
      Cryptographic Hardware to Secure Applications
      
      Cryptographic hardware allows storage of keys which cannot be easily
      viewed or copied.  This presentation explains how cryptographic
      hardware can be seamlessly accessed by applications including
      openssh, gpg, and Postgres. This can be presented
      after my Cryptographic
      Hardware Configuration and Features presentation.
      
Duration: 60 minutes, 75 minutes with
      questions
      
- Scale, July 31, 2022
 - Security Shell Meet Up, April 26, 2018
 - Fosdem, February 3, 2018 (video)
 
  
      
  
  
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