Cifrador de Texto AES-256: Web Crypto API, PBKDF2 y Cifrado Autenticado GCM
Cifrador de Texto AES-256: Web Crypto API, PBKDF2 y Cifrado Autenticado GCM
Esta herramienta opera 100% en el cliente en su navegador. Sus contraseñas, textos, documentos y datos privados nunca se transmiten a servidores externos; todo se procesa de forma segura en su memoria local.
Fórmula y Método de Cálculo
Ciphertext = AES_GCM_Encrypt(Plaintext, Key, Initialization Vector)
The algorithm mathematically scrambles the text using a 256 bit key. It also attaches an authentication tag, ensuring that if even a single byte of the encrypted file is altered by a hacker, the decryption will fail.
Mejores Prácticas y Consejos
- Never Lose the Key: AES 256 is mathematically unbreakable. If you encrypt a file and forget the password, there is no 'Reset Password' button. The data is permanently lost to the void.
- Understand Symmetric vs Asymmetric: AES is 'Symmetric', meaning the exact same password is used to both lock and unlock the file. If you send the file to a friend, you must also securely transmit the password via a separate channel.
- The Initialization Vector (IV) is Critical: The IV ensures that encrypting the exact same message twice produces two completely different encrypted strings. Never reuse an IV with the same key.