Security

ML-KEM / Kyber Keypair & Encapsulation Tester

Generate ML-KEM-512/768/1024 (FIPS 203 / CRYSTALS-Kyber) keypairs, encapsulate a random shared secret against the public key, decapsulate it with the private key, and verify both sides match — with the exact wire sizes of all three parameter sets checked live against the standard.

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Quick start

Call this tool from your code in three languages.

cURL

curl -X POST 'https://api.elysiatools.com/en/api/tools/ml-kem-kyber-keypair-and-encapsulation-tester' \
  -H 'Content-Type: application/json' \
  -d '{"parameterSet":"ml-kem-768","outputFormat":"hex","seedHex":"6c8f5a3fbf21d94e77a0c2e15b9d84f3a6d1c0048e2f97b5d3a1f6c8e0b4297d","showSecretKey":false}'

API reference

Send a POST request with your inputs as JSON. File parameters require a separate upload first.

Endpoint

HTTP

POST https://api.elysiatools.com/en/api/tools/ml-kem-kyber-keypair-and-encapsulation-tester

Parameters

Name	Type	Required	Description
parameterSet	select	Yes	—
outputFormat	select	Yes	—
seedHex	text	No	—
showSecretKey	checkbox	No	—

Response format

HTML result

JSON

{
  "result": "<div>Processed HTML content</div>",
  "error": "Error message (optional)",
  "message": "Notification message (optional)",
  "metadata": {
    "key": "value"
  }
}

MCP integration

Add this tool to your Model Context Protocol server so AI agents can list and call it.

Server configuration

Add this block to your MCP client configuration:

mcp.json

{
  "mcpServers": {
    "elysiatools-ml-kem-kyber-keypair-and-encapsulation-tester": {
      "name": "ml-kem-kyber-keypair-and-encapsulation-tester",
      "description": "Generate ML-KEM-512/768/1024 (FIPS 203 / CRYSTALS-Kyber) keypairs, encapsulate a random shared secret against the public key, decapsulate it with the private key, and verify both sides match — with the exact wire sizes of all three parameter sets checked live against the standard.",
      "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=ml-kem-kyber-keypair-and-encapsulation-tester",
      "command": "",
      "args": [],
      "env": {},
      "isActive": true,
      "type": "sse"
    }
  }
}

List available tools

After connecting to the SSE endpoint, list the exposed tools:

tools/list

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/list"
}

Call this tool

Invoke the tool by its id, passing arguments built from its parameters:

tools/call

{
  "jsonrpc": "2.0",
  "id": 2,
  "method": "tools/call",
  "params": {
    "name": "ml-kem-kyber-keypair-and-encapsulation-tester",
    "arguments": {
  "parameterSet": "ml-kem-768",
  "outputFormat": "hex",
  "seedHex": "6c8f5a3fbf21d94e77a0c2e15b9d84f3a6d1c0048e2f97b5d3a1f6c8e0b4297d",
  "showSecretKey": false
}
  }
}

Chain multiple tools in one session with a comma-separated toolId list, e.g. /mcp/sse?toolId=png-to-webp,jpg-to-webp,gif-to-webp (max 20).

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ML-KEM / Kyber Keypair & Encapsulation Tester

html· HTML resultOpen tool

curl -X POST 'https://api.elysiatools.com/en/api/tools/ml-kem-kyber-keypair-and-encapsulation-tester' \ -H 'Content-Type: application/json' \ -d '{"parameterSet":"ml-kem-768","outputFormat":"hex","seedHex":"6c8f5a3fbf21d94e77a0c2e15b9d84f3a6d1c0048e2f97b5d3a1f6c8e0b4297d","showSecretKey":false}'

Name

Type

Required

Description

parameterSet

select

Yes

—

outputFormat

select

Yes

—

seedHex

text

—

showSecretKey

checkbox

—

{ "mcpServers": { "elysiatools-ml-kem-kyber-keypair-and-encapsulation-tester": { "name": "ml-kem-kyber-keypair-and-encapsulation-tester", "description": "Generate ML-KEM-512/768/1024 (FIPS 203 / CRYSTALS-Kyber) keypairs, encapsulate a random shared secret against the public key, decapsulate it with the private key, and verify both sides match — with the exact wire sizes of all three parameter sets checked live against the standard.", "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=ml-kem-kyber-keypair-and-encapsulation-tester", "command": "", "args": [], "env": {}, "isActive": true, "type": "sse" } } }

{ "jsonrpc": "2.0", "id": 2, "method": "tools/call", "params": { "name": "ml-kem-kyber-keypair-and-encapsulation-tester", "arguments": { "parameterSet": "ml-kem-768", "outputFormat": "hex", "seedHex": "6c8f5a3fbf21d94e77a0c2e15b9d84f3a6d1c0048e2f97b5d3a1f6c8e0b4297d", "showSecretKey": false } } }