1. The Problem — What is Difficult or Frustrating?
Users who want to demonstrate control over a web server to get SSL certificates without relying on third-party services like Let's Encrypt
2. Who Experiences It — The Affected Audience
DevOps engineer
3. The Proposed Tool — Specific Web App or Software Concept
A web application that creates signed proof tokens, embeds them in a security.txt file, and provides verification instructions for CAs.
4. Core Features & Architecture
1.Token generator
Creates a cryptographically signed proof token tied to the domain and a timestamp.
SolvesEliminates the need for operators to craft ad‑hoc tokens manually. 2.Security.txt composer
Automatically inserts the signed token into a properly formatted security.txt file and offers a downloadable package.
SolvesRemoves manual editing of the file and ensures compliance with the security.txt specification. 3.Verification guide
Provides a URL that CAs can request to retrieve the token and a script that validates the signature against the public key.
SolvesGives a clear, repeatable method for CAs to confirm server control without custom integrations. 4.Key management dashboard
Stores the private key securely and lets operators rotate keys or revoke tokens from a single interface.
SolvesPrevents the risk of stale or compromised tokens being used for future requests. 5. Potential Value — Operational Impact
DevOps engineers can present a ready‑made, standards‑compliant proof file that CAs can fetch, removing the need for bespoke scripts and manual token handling.
Limitations & Technical Boundaries
The tool cannot see or interpret a CA's internal validation logic, and it cannot enforce acceptance of the token when a CA requires a different challenge type such as DNS‑01.
6. Suggested Validation Questions (Not Researched Facts)
Suggested exploration questions to confirm real demand, alternatives, and willingness to pay before building:
- Demand question: How often does your team need to prove server ownership to a CA when not using an automated ACME client?
- Possible existing alternatives to check: Certbot, acme.sh, and manual DNS‑01 challenges. Gap to test: whether any of these tools cover the workflow of delivering a signed token via security.txt.
- Willingness-to-pay question: What monthly price would feel fair for a service that eliminates the manual steps of creating and managing a verifiable security.txt proof?
Technical Feasibility & Platform Terms RiskThe tool depends on certificate authorities exposing an API or endpoint that accepts custom proof files.
🛠️ Technical Blueprint & Implementation Concept
**Frontend (React + TypeScript):** A single-page application (SPA) with a **React** UI, leveraging **TailwindCSS** for styling and **Zod** for runtime schema validation. The UI consists of: - A **token generator** component using **Web Crypto API** (via `@noble/curves` for Ed25519 keygen/signing) to create domain-bound tokens with timestamps. - A **security.txt composer** that uses **SheetJS** (for structured metadata) and **Sharp** (to generate a downloadable `.txt` file with embedded token). - A **verification guide** rendering a **Puppeteer**-generated PDF (via `@react-pdf/renderer`) with CA-specific instructions and a pre-filled `curl` command to fetch the token from a **Cloudflare Workers**-hosted endpoint (for low-latency, serverless validation). **Backend (Go + Gin):** A **Gin**-based API serving: - **Key management** via **Vault API** (for private key storage) or **AWS KMS** (if cloud-bound). Keys are stored as **PEM-encoded Ed25519** pairs. - **Token issuance** via a `/generate` endpoint returning a **JWT-like signed payload** (using `github.com/golang-jwt/jwt/v5` with custom claims for domain/timestamp). - **Verification endpoint** (`/verify/{token}`) returning the token + public key for CA validation. Uses **HTTP/3** (via `github.com/quic-go/quic-go`) for faster CA checks. **Libraries/Protocols:** - **Cryptography:** `libp2p-crypto` (for keygen), `golang.org/x/crypto/ed25519` (signing). - **File Handling:** `github.com/klauspost/compress` (for `.zip` packages of `security.txt` + metadata). - **CA Integration:** **RFC 9110 (HTTP-01)** compliance via a **well-known URI** (`/.well-known/security.txt`) served via **Caddy** (auto-TLS) or **Nginx** with a custom `location` block. **Workflow:** 1. DevOps engineer inputs domain + selects key (or generates new). 2. Backend emits signed token → frontend embeds it in `security.txt`. 3. CA fetches `/verify/{token}`; frontend’s PDF guide includes a script to validate the Ed25519 signature against the public key. 4. Key rotation triggers token invalidation via a **Redis pub/sub** event. **Deployment:** - **Frontend:** Vercel (edge functions for token signing). - **Backend:** Fly.io (global CDN for verification endpoints). - **Storage:** **Object Storage (e.g., Backblaze B2)** for audit logs of issued tokens.
📊 The Limitations of Current Alternatives
Current solutions fail because they **assume ACME compatibility** or force **DNS-01 challenges**, which are slow (TTL delays) and require cloud provider access. Manual `security.txt` workarounds (e.g., hardcoding tokens) are error-prone: - **Certbot/acme.sh:** Lock teams into HTTP-01/DNS-01; no support for custom proof formats like signed tokens. - **DNS-01:** Adds 5–30 minutes of latency per issuance (due to TXT record propagation) and requires zone API access. - **Manual scripts:** Tokens are often **hardcoded** (risk of leakage) or **stale** (no rotation). CAs lack standardized ways to validate them, forcing ad-hoc checks. - **Enterprise tools (e.g., DigiCert, Sectigo):** Cost **$500+/year per domain** for automation, with no open APIs for custom proofs. The gap: **No tool automates the security.txt challenge** while providing **auditable, revocable tokens** without ACME dependencies. Existing CAs (e.g., Let’s Encrypt) only accept **ACME or DNS-01**, but **self-hosted CAs** (e.g., EJBCA) may support custom proofs—this tool future-proofs for that.
🎯 Key Engineering Value & Benefits
This tool **eliminates 3 manual steps per certificate issuance**: 1. **Token generation** (no more `openssl rand -hex 32` + base64 encoding). 2. **File editing** (security.txt is auto-formatted with metadata like `Contact` and `Canonical` fields). 3. **CA coordination** (verification guide includes a **one-click script** for CAs to validate the Ed25519 signature against the public key). **Operational impact:** - **Reduces server load** by avoiding DNS-01 TTL delays (HTTP-01 is ~200ms vs. 5+ minutes for DNS). - **Lowers pipeline costs** by replacing manual scripts with a **single API call** for token issuance. - **Removes human error** from token rotation (automated via Vault/KMS hooks) and revocation (Redis invalidation cache). For **self-hosted CAs**, this enables **custom challenge types** without ACME, while for **public CAs**, it provides a **standardized alternative** to DNS-01. The **key management dashboard** ensures compliance with **NIST SP 800-57** (key rotation every 90 days) without disrupting workflows.
Relevant Platform Categories
Categories where this tool could be deployed or integrated.
