IT Security/Cryptography/Concepts

This lesson covers cryptography concepts.

Objectives and Skills
Objectives and skills for the cryptography concepts portion of Security+ certification include:
 * Given a scenario, utilize general cryptography concepts.
 * Symmetric vs. asymmetric
 * Session keys
 * In-band vs. out-of-band key exchange
 * Fundamental differences and encryption methods
 * Block vs. stream
 * Transport encryption
 * Non-repudiation
 * Hashing
 * Key escrow
 * Steganography
 * Digital signatures
 * Use of proven technologies
 * Elliptic curve and quantum cryptography
 * Ephemeral key
 * Perfect forward secrecy

Multimedia

 * 1) YouTube: Cryptography Overview - CompTIA Security+ SY0-401: 6.1
 * 2) YouTube: Symmetric vs. Asymmetric Encryption - CompTIA Security+ SY0-401: 6.1
 * 3) YouTube: Public Keys and Private Keys - CompTIA Security+ SY0-401: 6.1
 * 4) YouTube: Session Keys - CompTIA Security+ SY0-401: 6.1
 * 5) YouTube: Block vs. Stream Ciphers - CompTIA Security+ SY0-401: 6.1
 * 6) YouTube: Transport Encryption - CompTIA Security+ SY0-401: 6.1
 * 7) YouTube: Non-Repudiation - CompTIA Security+ SY0-401: 6.1
 * 8) YouTube: Hashing - CompTIA Security+ SY0-401: 6.1
 * 9) YouTube: Key Escrow - CompTIA Security+ SY0-401: 6.1
 * 10) YouTube: Steganography - CompTIA Security+ SY0-401: 6.1
 * 11) YouTube: Elliptic Curve and Quantum Cryptography - CompTIA Security+ SY0-401: 6.1
 * 12) YouTube: Perfect Forward Secrecy - CompTIA Security+ SY0-401: 6.1