Create PGP RSA Key Pairs in Your Browser Generate PGP-formatted RSA key pairs for email encryption.

The tool uses the Web Crypto API to generate RSA key pairs with customizable key sizes of 2048 or 4096 bits. Under the hood, it employs the RSA-OAEP algorithm with SHA-256 hashing for secure key generation. The generated keys are then exported in SPKI and PKCS#8 formats, which are subsequently wrapped in PGP armor headers to produce ASCII-armored output. This process involves converting the binary data to base64 encoding using the `ab2b64` function, followed by formatting the encoded string into a PEM structure with `fmtPem`. The resulting public and private keys are formatted as PGP PUBLIC KEY BLOCK and PGP PRIVATE KEY BLOCK, respectively.

The tool's implementation relies on React for building the user interface, where users can input their name and email address. These inputs are used to generate the key pair when the "Generate PGP Key Pair" button is clicked, triggering the `gen` function. This function utilizes the `crypto.subtle.generateKey` method to create a new RSA-OAEP key pair, which is then exported using `crypto.subtle.exportKey`. The exported keys are stored in the component's state as `pubKey` and `privKey`, allowing users to view and copy the generated keys. The copying functionality is handled by the `copyToClipboard` function from the `@/lib/utils` module, which enables users to easily transfer the keys to other applications.

The use of React's `useState` hook allows for efficient state management, while `useCallback` ensures that the `gen` and `copy` functions are only recreated when necessary. The tool also employs various utility functions from `@/lib/utils`, such as `cn` for conditional class names and `copyToClipboard` for copying text to the clipboard. By leveraging these technologies and techniques, the tool provides a convenient and user-friendly interface for generating PGP-formatted RSA key pairs directly in the browser.