Ciphers on Code and Cypherhttps://codeandcypher.com/tags/ciphers/Enterprise cybersecurity research by Joshua A. Wortz, CISSP: Zero Trust, cloud security, DevSecOps, threat defense, and AI-security education.Code and Cypherhttps://codeandcypher.com/images/papermod-cover.pnghttps://codeandcypher.com/Hugoen-usFri, 02 Oct 2026 12:15:27 -0700Kerberos Protocol Authentication: Ticket Granting, Mutual Authentication, and Blue Team Hardeninghttps://codeandcypher.com/papers/csol510-kerberos-authentication/Mon, 22 Jun 2026 00:00:00 -0700https://codeandcypher.com/papers/csol510-kerberos-authentication/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 Systemshttps://codeandcypher.com/papers/csol510-metadata-for-keys/Mon, 15 Jun 2026 00:00:00 -0700https://codeandcypher.com/papers/csol510-metadata-for-keys/Design principles for cryptographic key metadata, enforcing algorithm binding, usage constraints, and automated key expiration policies.Public-Key Cryptography, Digital Signatures, and Certificate Infrastructureshttps://codeandcypher.com/papers/csol510-public-key-cryptography/Mon, 08 Jun 2026 00:00:00 -0700https://codeandcypher.com/papers/csol510-public-key-cryptography/Architectural analysis of asymmetric cryptography, Diffie-Hellman key exchanges, and digital certificate validation across untrusted networks.Enterprise Cryptographic Controls: Key Lifecycle, Storage, and Transporthttps://codeandcypher.com/papers/csol510-cryptographic-controls/Mon, 01 Jun 2026 00:00:00 -0700https://codeandcypher.com/papers/csol510-cryptographic-controls/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 Verificationhttps://codeandcypher.com/papers/csol510-trusted-platform-module-tpm/Mon, 25 May 2026 00:00:00 -0700https://codeandcypher.com/papers/csol510-trusted-platform-module-tpm/Technical analysis of TPM 2.0 cryptographic primitives, secure boot measurement, and platform integrity attestation architecture.Cryptanalysis and Frequency Analysis: Breaking Classical Alphabetic Ciphershttps://codeandcypher.com/papers/csol510-breaking-alphabetic-ciphers/Mon, 18 May 2026 00:00:00 -0700https://codeandcypher.com/papers/csol510-breaking-alphabetic-ciphers/Cryptanalytic study of classical substitution ciphers, frequency analysis, and mathematical foundations of modern symmetric cryptography.Security Models and Kerckhoffs's Principle in Applied Cryptographyhttps://codeandcypher.com/papers/csol510-security-models-and-kerchhoffs-principle/Mon, 11 May 2026 00:00:00 -0700https://codeandcypher.com/papers/csol510-security-models-and-kerchhoffs-principle/Foundational review of Kerckhoffs's Principle, Shannon's cipher security models, and why security-by-obscurity consistently fails.