Symmetric Key Encryption and Decryption

Symmetric Key Encrypter

Securely encrypt your data using a symmetric key.

What is Symmetric Key Encryption?

Symmetric key encryption is a type of encryption where the same key is used for both encrypting and decrypting the data. This method is fast and efficient, making it suitable for encrypting large amounts of data.

Supported Algorithms

  • AES-GCM: Provides both authenticity and confidentiality. Generally recommended for most use cases.
  • AES-CBC: Cipher Block Chaining mode. Provides confidentiality but not authenticity.
  • AES-CTR: Counter mode. Turns a block cipher into a stream cipher. Provides confidentiality but not authenticity.

How to Use This Tool

  1. Select the encryption algorithm you want to use.
  2. Enter your secret key in the "Symmetric Key" field.
  3. Input the text you want to encrypt or decrypt in the text area.
  4. Click the "Encrypt" or "Decrypt" button to process your data.
  5. Copy the output and use it as needed.

Security Considerations

This tool uses the Web Crypto API to perform encryption and decryption, which provides a high level of security. However, please be aware that the security of your information depends on keeping your symmetric key secret. Never share your key with unauthorized parties, and consider using more secure methods for highly sensitive data.

Also note that this tool performs all operations in the browser. For maximum security, consider implementing server-side encryption for sensitive data.