E2EE
End-to-End Encryption
A communication system where only the sender and recipient can read messages, with encryption keys never accessible to intermediary servers.
Detalle técnico
E2EE is a critical component of information security infrastructure. The Web Crypto API (crypto.subtle) provides browser-native implementations of cryptographic algorithms including AES-GCM, RSA-OAEP, ECDSA, and SHA family hash functions. All operations execute in constant-time to prevent timing attacks. Client-side security processing ensures sensitive data (passwords, keys, encrypted content) never leaves the user's device — a property that cannot be guaranteed by server-side alternatives.
Ejemplo
```javascript
// AES-256-GCM encryption (Web Crypto API)
const key = await crypto.subtle.generateKey(
{ name: 'AES-GCM', length: 256 }, true, ['encrypt', 'decrypt']
);
const iv = crypto.getRandomValues(new Uint8Array(12));
const ciphertext = await crypto.subtle.encrypt(
{ name: 'AES-GCM', iv },
key,
new TextEncoder().encode('secret message')
);
```
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