Encrypted Text
Base64 ciphertext
AES Encryption & Decryption
Encrypt and decrypt your data locally using authenticated AES-GCM. Your sensitive information never leaves your browser.
- AES-GCM
- Authenticated
- Base64
- Client-Side
Encryption
Convert your plaintext into authenticated AES-GCM ciphertext.
How AES Encryption Works
AES — Advanced Encryption Standard.
GCM — Galois/Counter Mode, which provides authenticated encryption and detects tampering.
Nonce — A unique 12-byte value required for each encryption. It does not need to be secret and is stored with the ciphertext.
Key — The secret value required to encrypt and decrypt the data. It must remain secret.
Base64 — A text representation used to safely display binary encryption data.
Without the correct key and nonce, the ciphertext cannot normally be decrypted successfully.
AES-GCM authenticates the ciphertext, so decryption fails if the key, nonce, ciphertext, or authentication tag is incorrect or has been modified.