Symmetric Key Cryptography

Encrypt and decrypt messages using AES-256-CTR

Encryption

Secret Key:

Plain Text:

Decryption

Cipher Text:

ℹ️ How it works: Symmetric encryption uses the same key for both encryption and decryption. AES (Advanced Encryption Standard) with CTR (Counter) mode is used here. The secret key is hashed with SHA-256 before being used for encryption to ensure it's the correct length (256 bits).