---
title: "Cryptography"
canonical: "https://codeandcypher.com/tags/cryptography/"
---

# Cryptography



## Index

- [Active Blue-Team Defense, Applied Cryptography & Security Operations](/papers/active-defense-cryptography-and-blue-team-integration/index.md) (2026-07-13): Enterprise research synthesis on active blue-team defense, applied cryptography, and Zero Trust network telemetry operations in high-threat environments.

- [Kerberos Protocol Authentication: Ticket Granting, Mutual Authentication, and Blue Team Hardening](/papers/csol510-kerberos-authentication/index.md) (2026-06-22): Protocol analysis of Kerberos authentication tickets (TGT, TGS), pre-authentication security, and ticket-granting domain defense strategies.

- [Cryptographic Key Metadata, Revocation Protocols, and Key Management Systems](/papers/csol510-metadata-for-keys/index.md) (2026-06-15): Design principles for cryptographic key metadata, enforcing algorithm binding, usage constraints, and automated key expiration policies.

- [Public-Key Cryptography, Digital Signatures, and Certificate Infrastructures](/papers/csol510-public-key-cryptography/index.md) (2026-06-08): Architectural analysis of asymmetric cryptography, Diffie-Hellman key exchanges, and digital certificate validation across untrusted networks.

- [Enterprise Cryptographic Controls: Key Lifecycle, Storage, and Transport](/papers/csol510-cryptographic-controls/index.md) (2026-06-01): Evaluation of cryptographic control selection, implementation trade-offs, and compliance assurances under FIPS 140-3 and ISO/IEC 19790.

- [Hardware Root of Trust: Trusted Platform Module (TPM) Implementation and Verification](/papers/csol510-trusted-platform-module-tpm/index.md) (2026-05-25): Technical analysis of TPM 2.0 cryptographic primitives, secure boot measurement, and platform integrity attestation architecture.

- [Cryptanalysis and Frequency Analysis: Breaking Classical Alphabetic Ciphers](/papers/csol510-breaking-alphabetic-ciphers/index.md) (2026-05-18): Cryptanalytic study of classical substitution ciphers, frequency analysis, and mathematical foundations of modern symmetric cryptography.

- [Security Models and Kerckhoffs's Principle in Applied Cryptography](/papers/csol510-security-models-and-kerchhoffs-principle/index.md) (2026-05-11): Foundational review of Kerckhoffs's Principle, Shannon's cipher security models, and why security-by-obscurity consistently fails.