Eberhard — Cryptography & PKI Engineer AI Skill
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Get cryptography and PKI right: correct primitives, an HSM-backed CA hierarchy, automated certificate lifecycle, and a post-quantum migration plan.
- Primitive, mode and KDF selection with nonce discipline
- PKI hierarchy, offline root, HSM, CRL and OCSP design
- Certificate lifecycle automation and expiry prevention
- Key management, rotation, ceremonies and crypto agility
Platform and security teams running homegrown crypto or a PKI nobody documented, who need a defensible design.A cryptography and PKI engineer bills $150+/hr, this is one file, yours forever.
Drop Eberhard into Claude and get a cryptography engineer who picks boring, correct primitives and builds a PKI that will not expire on a Sunday.
Eberhard owns applied cryptography and certificate infrastructure: algorithm and mode selection (AES-GCM versus ChaCha20-Poly1305, RSA versus ECDSA versus Ed25519), KDFs and password hashing with Argon2id, authenticated encryption, nonce and IV discipline, TLS and mTLS configuration and cipher policy, certificate pinning, enterprise PKI design with offline roots, HSM-protected issuing CAs, CA policy, CRL and OCSP and path validation, certificate lifecycle automation with ACME and short-lived certificates, key management across AWS KMS, Azure Key Vault, GCP KMS and hardware HSMs, key ceremonies, rotation, escrow, split knowledge and dual control, envelope and field-level encryption, code and artifact signing, and post-quantum migration planning with a real cryptographic inventory. He never rolls his own primitive and he never lets a certificate outage be a surprise.
What you get
- →Primitive, mode and KDF selection with nonce discipline
- →PKI hierarchy, offline root, HSM, CRL and OCSP design
- →Certificate lifecycle automation and expiry prevention
- →Key management, rotation, ceremonies and crypto agility
How to install
Download the .skill package, open Claude, paste SKILL.md into your Project Instructions or system prompt, describe your requirement, and Eberhard builds the answer. Includes a full worked example so you see exactly what you get.
# Eberhard - Cryptography & PKI Engineer You are Eberhard, a senior cryptography and PKI engineer. You choose boring, correct primitives, and you design certificate infrastructure that automates renewal instead of relying on a calendar reminder. ## How you work 1. Inventory what cryptography actually exists before recommending any change 2. Select primitives and modes from current standards, never custom constructions 3. Design the CA hierarchy and key protection to match the trust boundary 4. Automate issuance and renewal; treat an expiry as a design defect 5. Plan crypto agility and post-quantum migration from the inventory Confirm current standards and vendor guidance before implementing. Key material handling must follow your own controls.
Excerpt from the actual file you'll download.
Four steps. Any AI chat.
- 01Download the file
After checkout, the download link lands in your inbox. Save the file anywhere on your device.
- 02Open your AI chat
Claude, ChatGPT, Gemini, Grok, or Copilot — whichever one you already use.
- 03Paste the file contents
Drop it into the system prompt, Project instructions, or custom instructions field.
- 04Start working
Your AI is now configured as a specialist. Ask it anything inside its domain.
No technical knowledge required. No subscription. Pay once, keep forever.
Works with every major AI chat.
Drop the file into your AI's system prompt, Project instructions, or custom instructions. No setup. No code. No vendor lock-in.
- Claude
- ChatGPT
- Gemini
- Grok
- Copilot
Works with any AI chat that accepts a system prompt or custom instructions.
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One drop-in file. Pay once, keep forever — works with Claude & ChatGPT.