it-tools-mcp/build/tools/crypto/generate_hmac/index.js

Full MCP 2025-06-18 compliant server with 121+ IT tools, logging, ping, progress tracking, cancellation, and sampling utilities

import { createHmac } from "crypto";
import { z } from "zod";
export function registerGenerateHmac(server) {
    server.registerTool("generate_hmac", {
        description: "Generate HMAC (Hash-based Message Authentication Code)",
        inputSchema: {
            message: z.string().describe("Message to authenticate"),
            key: z.string().describe("Secret key for HMAC"),
            algorithm: z.enum(["sha1", "sha256", "sha512"]).describe("Hash algorithm").optional(),
        },
        // VS Code compliance annotations
        annotations: {
            title: "Generate Hmac",
            description: "Generate HMAC (Hash-based Message Authentication Code)",
            readOnlyHint: false
        }
    }, async ({ message, key, algorithm = "sha256" }) => {
        try {
            const hmac = createHmac(algorithm, key);
            hmac.update(message);
            const result = hmac.digest('hex');
            return {
                content: [
                    {
                        type: "text",
                        text: `HMAC-${algorithm.toUpperCase()}: ${result}

Message: ${message}
Key: ${key}
Algorithm: ${algorithm.toUpperCase()}`,
                    },
                ],
            };
        }
        catch (error) {
            return {
                content: [
                    {
                        type: "text",
                        text: `Error generating HMAC: ${error instanceof Error ? error.message : 'Unknown error'}`,
                    },
                ],
            };
        }
    });
}