SCP Local MCP Server

/** * PKCE (Proof Key for Code Exchange) utilities */ import { randomBytes, createHash } from 'crypto'; /** * Generate code verifier (random string) */ export function generateCodeVerifier(): string { return randomBytes(32).toString('base64url'); } /** * Generate code challenge from verifier (SHA256) */ export function generateCodeChallenge(verifier: string): string { return createHash('sha256') .update(verifier) .digest('base64url'); } /** * Generate PKCE pair */ export function generatePKCE(): { code_verifier: string; code_challenge: string; code_challenge_method: 'S256'; } { const code_verifier = generateCodeVerifier(); const code_challenge = generateCodeChallenge(code_verifier); return { code_verifier, code_challenge, code_challenge_method: 'S256' }; } /** * Generate random state parameter */ export function generateState(): string { return randomBytes(32).toString('base64url'); }