Package Exports

simple-csr-generator
simple-csr-generator/csr.js

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Readme

Simple Certificate Signing Request Generator (CSR)

A robust and secure JavaScript library for generating Certificate Signing Requests (CSRs)

This library follows the PKCS#10 specification and implements CSR generation with SHA-256 signing.

Features

PKCS#10 compliant implementation
DNS Subject Alternative Names (SAN)
DER encoding with base64url output format

Usage

import { generateCSRWithExistingKeys } from 'simple-csr-generator';

async function generateCSR(publicKeyES256, privateKeyES256) {
    try {
        const commonName = 'www.ssl.boats';
        const dnsNames = ["www.ssl.boats", "ssl.boats"];

        const csr = await generateCSRWithExistingKeys(commonName, publicKeyES256, privateKeyES256, dnsNames);
                
        console.log('Generated CSR:', csr);
    } catch (error) {
        console.error('Failed to generate CSR:', error);
    }
}

API Reference

generateCSRWithExistingKeys(commonName, publicKey, privateKey, dnsNames)

Generates a SHA-256 Certificate Signing Request (CSR) in DER format, encoded as base64url string, following the PKCS#10 specification.

Parameters

commonName (string): The common name (CN) to be included in the CSR subject field.
publicKey (KeyObject): The public key to be included in the CSR.
privateKey (KeyObject): The private key that corresponds to the provided public key.
dnsNames (array): Array of DNS names to use for Subject Alternative Names (SAN)

Returns

Promise<string>: Base64URL-encoded DER format CSR

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

For major changes, please open an issue first to discuss what you would like to change.

Acknowledgments

RFC 2986 - PKCS #10: Certification Request Syntax Specification

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