AES Encryption

Enter Plain Text:

Select Cipher Mode:

Select Padding:

Enter IV (Optional):

Key Size in Bits:

Enter Secret Key:

0/16

AES Encrypted Output (Binary):

AES Decryption

Enter Binary Encrypted Text:

Upload Encrypted File

Select Cipher Mode:

Select Padding:

Enter IV Used During Encryption (Optional):

Key Size in Bits:

Enter Secret Key used for Encryption:

0/16

AES Decrypted Output:

Understanding AES Encryption

This tool uses the Advanced Encryption Standard (AES) algorithm with a 128-bit key size in CBC (Cipher Block Chaining) mode to encrypt your data.

Encryption Process:

AES-128 Encryption: Your text is first encrypted using the AES algorithm with your secret key.

Text to Binary Conversion: The encrypted data is then converted to its binary representation.

CBC Mode: Cipher Block Chaining mode uses an Initialization Vector (IV) to ensure that identical plaintext blocks encrypt to different ciphertext blocks.

Decryption Process:

Binary to Text Conversion: The binary data is first converted back to encrypted text format.

AES-128 Decryption: The encrypted text is then decrypted using the same secret key and IV.

Result: The original plaintext is recovered.

Using This Tool with External Services:

For Encryption (using other tools):

First, encrypt your text using an AES encryption tool with these settings:
- Mode: CBC
- Key Size: 128 bits
- Padding: PKCS7
- Your Secret Key
- Your IV (if you want to specify one)
Then convert the encrypted text to binary using a text-to-binary converter.
You can then paste the binary result in our decryption section.

For Decryption (using other tools):

First, convert the binary text to regular text using a binary-to-text converter.
Then use an AES decryption tool with these settings:
- Mode: CBC
- Key Size: 128 bits
- Padding: PKCS7
- The same Secret Key you used for encryption
- The same IV you used for encryption (if specified)

Security Tips:

Use a strong secret key that's exactly 16 characters (128 bits) long.
Store your encrypted data securely.
For added security, consider adding a prefix and suffix to your password before encryption.

Quick Guide to Use This Tool

For Encryption:

Enter your plain text in the "Enter Plain Text" field
Optionally, click "Advanced Settings" to configure cipher mode, padding, IV, and key size
Enter your secret key (recommended: 16 characters for 128-bit encryption)
Click the "Encrypt" button
Your encrypted binary text will appear in the output field
Use "Copy to Clipboard" to copy the result or "Download as File" to save it

For Decryption:

Paste your binary encrypted text in the "Enter Binary Encrypted Text" field using "Paste from Clipboard" or type it manually
Alternatively, use "Upload Encrypted File" to load from a file
Optionally, click "Advanced Settings" to configure the same settings used during encryption
Enter the same secret key that was used for encryption
Click the "Decrypt" button
Your original text will appear in the decrypted output field
Use "Copy to Clipboard" to copy the result

Tips:

Always use the same secret key and settings for encryption and decryption
Store your secret key securely - anyone with the key can decrypt your data
The encrypted output contains only binary digits (1s and 0s) with spaces
You can store the encrypted binary text in notes, emails, or any text storage
For maximum security, use a strong, unique secret key for each set of data

About AES Encryption

What is AES?

AES (Advanced Encryption Standard) is a symmetric encryption algorithm that was established by the U.S. National Institute of Standards and Technology (NIST) in 2001. It has become the global standard for encrypting electronic data.

Key Features:

Symmetric Encryption: The same key is used for both encryption and decryption
Block Cipher: Encrypts data in fixed-size blocks (128-bit blocks)
Multiple Key Sizes: Supports 128-bit, 192-bit, and 256-bit keys
High Security: Considered unbreakable by current computing technology
Fast Performance: Optimized for both software and hardware implementations

How AES Works (Simplified):

Input: Takes plaintext data and a secret key
Key Expansion: Expands the secret key into multiple round keys
Rounds: Applies multiple rounds of transformation (10 rounds for AES-128)
Output: Produces encrypted ciphertext that looks random

Why We Use AES-128:

Balance: Perfect balance between security and performance
Standard: Most widely used and thoroughly tested variant
Sufficient: 128-bit security is more than enough for all practical purposes
Efficient: Faster than AES-192/256 while still being extremely secure

Real-World Applications:

WhatsApp: End-to-end encryption for messages
HTTPS: Secure web browsing
VPNs: Virtual Private Networks
File Encryption: Windows BitLocker, macOS FileVault
Wireless Security: WPA2/WPA3 encryption

Security Level:

AES-128 would require 2^128 operations to break by brute force. This is more than the number of atoms in the known universe, making it practically impossible to crack with current technology.