# CipherHUB Blog

> CipherHUB Blog is a research-driven technical blog focusing on cryptography engineering, identity & access security, and AI Agent security. Content includes algorithm deep-dives with code verification, protocol analysis, KMS/Vault integration guides, post-quantum cryptography migration, OIDC/SPIFFE identity models, and Agent threat modeling.

- Author: Yang X. CHEN
- Site: `https://cipherhub.cloud/`
- Companion Tools: `https://tools.cipherhub.cloud/` (31 cryptographic MCP tools)
- MCP Endpoint: `https://tools.cipherhub.cloud/cipherhub/mcp`
- RSS: `https://cipherhub.cloud/index.xml`

## Content Categories

- [Cryptography](https://cipherhub.cloud/categories/cryptography/): AES/RSA/ECC/SM2/SM4 algorithm analysis, key lifecycle, encoding formats (PEM/DER/JWK), PKCS#7 padding semantics, KMS integration (AWS/Tencent Cloud), post-quantum cryptography (ML-KEM, ML-DSA, Hybrid KEX), protocol security (TLS 1.3, SSH)
- [Identity & Access](https://cipherhub.cloud/categories/identity-access/): OIDC/OAuth 2.0 flows, SPIFFE/SPIRE workload identity, IAM/STS/AssumeRole, credential issuance & rotation, trust chain analysis, zero-trust architecture
- [AI & Agent Security](https://cipherhub.cloud/categories/ai-agent/): Agent runtime security, MCP protocol security, tool-use authorization, credential isolation, threat models for autonomous agents

## Key Research

- [AWS KMS & CipherHUB Interoperability](https://cipherhub.cloud/posts/cipherhub-aws-kms-interop/): Complete verification of 64 cryptographic operations across RSA/ECC/SM2/HMAC with AWS KMS
- [Tencent Cloud KMS & CipherHUB Interoperability](https://cipherhub.cloud/posts/cipherhub-tencent-kms-interop/): Complete verification of 39 operations including SM2/SM4 national standards
- [Post-Quantum Cryptography Practical Guide](https://cipherhub.cloud/categories/cryptography/): ML-KEM (FIPS 203), ML-DSA (FIPS 204), hybrid key exchange implementations

## Optional

- [All Posts (RSS)](https://cipherhub.cloud/index.xml): Full-text RSS feed with all published articles
- [CipherHUB Tools MCP](https://tools.cipherhub.cloud/.well-known/llms.txt): AI-readable capability description of the companion cryptography toolkit