A Developer's Guide to the RSA Key Generator

The RSA Key Generator is a tool for creating public and private key pairs using the RSA algorithm, a cornerstone of public-key cryptography. This is essential for tasks like setting up SSH authentication, creating digital signatures, or implementing asymmetric encryption.

Disclaimer: This tool performs all cryptographic operations locally in your browser using the standard Web Crypto API. However, for maximum security, production-grade keys should always be generated in a secure, offline environment. Handle your generated private key with extreme care and keep it secret.

Features

• Secure, Local Generation: Your keys are generated entirely within your browser and are never sent over the network.
• Customizable Key Size: Choose between a 2048-bit key (the recommended standard for good security) and a 4096-bit key (for even higher security).
• Standard PEM Format: The generated public and private keys are provided in the standard PEM (Privacy-Enhanced Mail) format, which is compatible with most systems and applications (like SSH, GPG, etc.).
• Easy to Use: Generate a new key pair and copy the keys with just a few clicks.

How to Use

1. Select Key Size: Choose your desired key size from the dropdown menu. 2048 is a strong, common choice.
2. Generate: Click the "Generate" button. The tool will create a new, unique public and private key pair.
3. Copy Your Keys:
   • The Public Key is safe to share. It's used to encrypt data that only the corresponding private key can decrypt.
   • The Private Key must be kept secret. It's used to decrypt data and to create digital signatures.
   • Use the copy buttons to get the keys for use in your applications. Save your private key in a secure location.