RSA & ECC Key Pair Generator

Generate RSA (1024-4096 bit) and Elliptic Curve (ECDSA) public/private key pairs in PEM, OpenSSH, or JWK format.

⚙️ Key Pair Configuration

Configure cryptographic algorithm, key length, and export format settings.

🔑 Generated Key Pair Outputs

Cryptographically generated using standard browser window.crypto.subtle.

🔓 Public Key
🔒 Private Key (Keep Confidential)
🔒 Processes 100% locally in your browser using standard Web Crypto API — private keys never touch any server.

RSA & Elliptic Curve (ECC) Key Pair Generator Studio

The DwellixTools RSA & Elliptic Curve Key Pair Generator Studio enables software developers, system administrators, and security specialists to generate cryptographically strong public and private key pairs directly within their browser.

Key Features & Capabilities

  1. Multiple Cryptographic Algorithms:
    • RSA: 1024-bit, 2048-bit (Standard Recommended), and 4096-bit (High Security).
    • ECDSA (Elliptic Curve): P-256 (secp256r1), P-384 (secp384r1), and P-521 (secp521r1).
  2. Multiple Export Formats:
    • PEM Format: Standard PKCS#8 private keys (-----BEGIN PRIVATE KEY-----) and SPKI public keys (-----BEGIN PUBLIC KEY-----).
    • OpenSSH Format: Standard OpenSSH authorized key format (ssh-rsa AAAAB3...).
    • JWK (JSON Web Key): Structured JSON representation of public and private keys.
  3. One-Click Export: Copy keys to clipboard or download .pub and .pem key files instantly.

Frequently Asked Questions (FAQ)

Is it safe to generate SSH/SSL keys in a browser tool?

Yes. All key generation is performed 100% locally inside your browser using native Web Crypto APIs (window.crypto.subtle.generateKey). Your private keys are never transmitted across the network or stored on any server.

For production SSH connections and SSL certificates, 2048-bit is the current industry minimum standard. For long-term high-security applications, select 4096-bit.

What is the difference between RSA and ECDSA?

Elliptic Curve DSA (ECDSA) offers equivalent or higher cryptographic security than RSA while utilizing significantly shorter key lengths, leading to faster handshake computations and reduced bandwidth overhead.