CISSP Certification: Most Detailed Course on Domain 3 - 2026

Explore the evolution of cryptography from the Caesar cipher to World War II encryption, and review modern symmetric and asymmetric algorithms, hashing, and key management within the cryptographic lifecycle.

Explore topics: confidentiality, integrity, non-repudiation, authentication; code vs cipher, cipher types, one-time pad, zero-knowledge proof, split knowledge, work function, key management, symmetric vs asymmetric cryptosystems, des and triple des modes.

Trace the origins of cryptography from the Caesar cipher to the Enigma rotor machine, covering rotation three and monoalphabetic cipher, and how the allies cracked it in 1940.

Explore the four goals of cryptography: confidentiality, integrity, authentication, and non-repudiation, and how encryption and hashing protect them. Examine two-factor authentication and challenge-response, and non-repudiation with public and private keys.

Explore the foundations of cryptography, including plaintext, cipher, and cryptographic algorithms. Understand how keys define the key space and key size, and how public and private keys work.

Explore boolean mathematics and logical operations essential for encryption algorithms. Learn base two numbers, true/false values, and the and, or, not, and xor operations.

Examine modular function concepts and one-way functions, plus initialization vectors and zero-knowledge proofs, to understand secure cryptography and two-subject authorization with separation of duties.

Explore the differences between codes and ciphers; examine transposition and substitution ciphers, one-time pads, book ciphers, block and stream ciphers, and confusion and diffusion.

Discover how modern cryptography protects confidentiality, integrity, authentication, and nonrecognition by relying on secret, unique encryption keys and long key lengths, while noting why des with 56 keys is vulnerable.

Discover how symmetric key algorithms use a shared secret for encryption and decryption, including private key cryptography and shared private key, their bulk encryption speed, and non-repudiation, scalability challenges.

Examine asymmetric key algorithms, encrypting with the recipient’s public key and decrypting with the recipient’s private key, and signing messages with the sender’s private key verifiable by the public key.

Describe symmetric cryptography fundamentals, including des, triple des, aes, and key management; explain des block size, parity, and five modes: ecb, cbc, cfb, ofb, and ctr.

Survey symmetric algorithms such as the international data encryption algorithm (eda), Blowfish, Skipjack, Ark5, ais, and Twofish, noting 64-bit blocks, 128-bit keys, subkeys, and pre whitening and post whitening.

Explore symmetric key management, including creation and exchange methods (offline, public-key, Diffie-Hellman), secure storage with split-knowledge, and key escrow systems such as Fair Cryptosystem and ESE.

Explore how the cryptography life cycle evolves with advancing technology, teaching you to select durable algorithms based on asset lifespan and industry standards.

Trace the history and fundamentals of cryptography from Caesar cipher to modern symmetric and asymmetric systems, covering the four goals of cryptography and key concepts, ciphers, and cryptographic life cycle.

Learn public key infrastructure and cryptography applications, including asymmetric cryptography and digital signatures. Explore PKI elements like certificates, authorities, and hash functions, and practical attack mitigation.

Explore key cryptography concepts, including asymmetric key types, public key systems, hash functions and algorithms, digital signatures, the structure of public infrastructure, and cryptographic applications for emails, web, and networking.

Explore asymmetric cryptography by examining public and private keys, RSA, and the workflow where a sender encrypts with the recipient’s public key and the recipient decrypts with the private key.

Explore two additional asymmetric encryption algorithms, their link to symmetry key management, and compare RSA with elliptic curve cryptography, highlighting elliptic curve discrete logarithm complexity and its bandwidth implications.

Identify hash functions and the secure hash algorithm family, including sha-1 and sha-2 variants and md2, md4, and md5, and examine message digests for integrity.

Learn the basics of digital signatures, including how hashing and private keys ensure integrity and non-repudiation, and how verification uses public keys with DSA, RSA, and ECDSA.

Explore public key infrastructure (pki), including digital certificates, certificate authorities, and registration authorities, and how asymmetric cryptography, hashing, and x.509 digital signatures enable trusted identity and secure communication.

Explore PCA mechanisms across the three-stage life cycle—enrollment, verification, and revocation—covering the RA and CA roles, digital certificates and signatures, CRL, CPS, and OCSP.

Explore asymmetric key management by selecting a public, well-tested encryption algorithm and balancing performance with security. Safeguard the private key, renew certificates regularly, and back up keys.

Explore how web applications secure traffic with http and https over tls, via a certificate-based handshake, then examine steganography and watermarking for intellectual property protection.

Explore how digital rights management uses encryption to restrict access to music, movies, ebooks, games, and documents, leveraging CSS, AACs, and digital experience protection technology.

Explore how cryptography secures network services, including link and end-to-end encryption, IPsec with AH and ESP, ISAKMP, and wireless security with WEP and WPA2.

Investigate analytic, implementation, and statistical cryptographic attacks, brute-force methods, and rainbow tables, and learn how salting hashes strengthens password storage against these threats.

Examine frequency analysis and ciphertext-only attacks, including transposition and substitution, and review other methods like known plaintext, chosen ciphertext, chosen plaintext, meet-in-the-middle, man-in-the-middle, burst, and replay.

Explore key concepts in public key infrastructure and cryptography, including asymmetric keys, RSA, ElGamal, elliptic curves, hashing algorithms, digital signatures, HMAC, and certificate authorities, plus practical applications and common attacks.

Recap the CISSP examination preparation and practical job efficiency from this course, and invite learners to follow for updates on future classes.