pqc_hybrid_keygen · Post-Quantum Cryptography MCP Server MCP

WHAT IT DOES

What pqc_hybrid_keygen does on Post-Quantum Cryptography MCP Server

AI agents use pqc_hybrid_keygen to create or update resources in Post-Quantum Cryptography MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Post-Quantum Cryptography MCP Server environment.

WHY IT NEEDS A POLICY

Why pqc_hybrid_keygen needs a policy

This tool generates cryptographic key material (a hybrid keypair bundle). It creates new data (private/public keys) but does not delete, execute commands, or involve financial transactions. Key generation is a Write operation as it produces new persistent artifacts. Severity is medium because generated private keys could be misused if exposed, but the act of generation itself is bounded in blast radius.

From the tool's definition Generate a hybrid X25519 + ML-KEM-768 keypair bundle

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

pqc_hybrid_keygen Rate-limited

pqc_hybrid_keygen stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "pqc_hybrid_keygen": {
      "limits": [
        {
          "counter": "pqc_hybrid_keygen_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Post-Quantum Cryptography MCP Server, so you can run agents against it safely.

FAQ

Questions about pqc_hybrid_keygen

What does the pqc_hybrid_keygen tool do? +

Generate a hybrid X25519 + ML-KEM-768 keypair bundle. It is categorised as a Write tool in the Post-Quantum Cryptography MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on pqc_hybrid_keygen? +

Register the Post-Quantum Cryptography MCP Server MCP server in PolicyLayer and add a rule for pqc_hybrid_keygen: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Post-Quantum Cryptography MCP Server. Nothing to install.

What risk level is pqc_hybrid_keygen? +

pqc_hybrid_keygen is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit pqc_hybrid_keygen? +

Yes. Add a rate_limit block to the pqc_hybrid_keygen rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block pqc_hybrid_keygen completely? +

Set action: deny in the PolicyLayer policy for pqc_hybrid_keygen. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides pqc_hybrid_keygen? +

pqc_hybrid_keygen is provided by the Post-Quantum Cryptography MCP Server MCP server (scottdhughes/post-quantum-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.