Cryptography Algorithms Workbook: A Practical Guide to Modern Encryption and Security
English | June 12, 2026 | ASIN: B0H4ZY63MY | 374 pages | Epub | 210.80 MB
Cryptography Algorithms WorkbookA Visual Problem-Solving Workbook for Encryption, Hashing, MACs, Key Exchange, Digital Signatures, Password Hashing, TLS, Key Management, and Post-Quantum CryptographyThis workbook is built for developers, security engineers, and students who want to understand how cryptographic algorithms actually work - not just what to call, but why each primitive exists, how it can be misused, and how to use it correctly. It covers the full stack of applied cryptography, from XOR and entropy through AES and authenticated encryption, to TLS 1.3, post-quantum algorithms, and key management, with worked examples, guided exercises, practice problems, and complete answer keys in every chapter.Every chapter is structured around a security problem. You learn what the threat is, which primitive solves it, what correct use looks like, and what misuse looks like - with a defensive implementation checklist at the end of each chapter to reinforce safe practice.What this workbook covers:* Cryptographic goals: confidentiality, integrity, authentication, non-repudiation, and forward secrecy* Bits, bytes, XOR, encoding, entropy, randomness, and CSPRNGs* Keys, nonces, IVs, salts, peppers, tags, and security parameters* Security notions: IND-CPA, IND-CCA, EUF-CMA, and AEAD security* Stream ciphers, the one-time pad, and keystream reuse attacks* Block ciphers and AES: round structure, SubBytes, ShiftRows, MixColumns, and the avalanche effect* Block cipher modes: ECB, CBC, CTR, XTS, padding oracles, and mode misuse* Authenticated encryption: AEAD, AES-GCM, GMAC, and ChaCha20-Poly1305* Lightweight cryptography and the Ascon family for constrained devices* Hash functions: SHA-2, SHA-3, collision and preimage resistance, and the birthday bound* Message authentication codes: HMAC, CMAC, GMAC, and KMAC* Key derivation: HKDF, extract-then-expand, and key separation* Password hashing: Argon2id, scrypt, bcrypt, PBKDF2, salts, and peppers* RSA: textbook vs. secure use, OAEP, PSS, and why padding matters* Diffie-Hellman, ECDH, elliptic curves, and forward secrecy* Digital signatures: RSA-PSS, ECDSA, EdDSA, and the ECDSA nonce requirement* Public-key infrastructure: certificates, trust chains, revocation, and certificate transparency* Post-quantum cryptography: ML-KEM, ML-DSA, SLH-DSA, hybrid migration, and crypto-agility* TLS 1.3: the handshake, key schedule, cipher suites, forward secrecy, and 0-RTT* Key management: key lifecycle, HSMs, KMS, envelope encryption, and side-channel disciplineWhat makes this workbook useful:* Every chapter opens by framing the security problem before introducing the solution* Worked examples, guided exercises, and practice problems in every chapter* Complete answer keys with reasoning, not just answers* Common mistake sections identifying exactly where implementations go wrong* Defensive implementation checklists at the end of every chapter* Algorithm selection tables and primitive reference appendices* A comprehensive cryptographic misuse checklist and secure implementation guideGood for:* Software developers implementing cryptography in real systems* Security engineers and architects designing secure protocols* Students in applied cryptography, information security, or computer science courses* Developers preparing for security certifications or code review* Anyone who wants to move from "copy-paste the example" to genuinely understanding what each parameter does and why it mattersIf you want a workbook that teaches you applied cryptography from the threat model down - covering not just the algorithms but the misuse patterns that get real systems broken - this book is built for that.
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