AES Encryptor/Decryptor

AES Encryption Tool

Encryption
Decryption
Key Generator

Key Size:

Encryption Mode:

Output Format:

Padding Mode:

Key Size:

Encryption Mode:

Note: If your encrypted data includes the IV (default), leave this empty.

Input Format:

Padding Mode:

Note: Leave empty for completely random key generation.

Output Format:

Generate:

AES Algorithm Quick Reference

Key Size Security Level Recommended For Performance
AES-128 Good Standard security, everyday use Fastest
AES-192 Strong Sensitive data, business applications Balanced
AES-256 Maximum Government, military, highly sensitive data Slowest
Mode Security IV Required Best For
CBC High Yes General use, good balance of security/performance
GCM Very High Yes Data integrity verification, authenticated encryption
ECB Low No Only for short, random data (not recommended)

Best Practices

  • For Maximum Security: Use AES-256 with GCM mode and a random IV
  • For Regular Use: AES-128 or AES-192 with CBC mode is sufficient
  • Always Use Random IV: Never reuse the same IV with the same key
  • Avoid ECB Mode: ECB does not hide data patterns and is vulnerable to various attacks

About AES Encryptor

An AES Encryptor is a cryptographic tool that secures data using the Advanced Encryption Standard (AES). AES is a widely used symmetric encryption algorithm that ensures secure data storage and transmission by encrypting plaintext into ciphertext using a secret key.

Cybersecurity experts, developers, and IT administrators use AES encryption for protecting sensitive information, securing communications, and encrypting files. AES is commonly applied in password storage, secure messaging, encrypted databases, and cloud security.

Core Capabilities

  • AES Encryption and Decryption: Securely encrypt and decrypt text, files, and sensitive data.
  • Multiple Key Sizes: Supports AES-128, AES-192, and AES-256 for varying security needs.
  • Secure Padding Modes: Uses PKCS#7 or ZeroPadding to ensure data block alignment.
  • Encryption Modes Support: CBC (Cipher Block Chaining), GCM (Galois/Counter Mode), and ECB (Electronic Codebook).
  • Cross-Platform Compatibility: Works on different operating systems and devices.

Common Use Cases

Encrypting Sensitive Data

AES encryption ensures that sensitive information remains secure and unreadable to unauthorized users.

Example
Plaintext:
MySecretPassword123

Encrypted Output: 5f4dcc3b5aa765d61d8327deb882cf99

Protecting Files and Documents

AES can encrypt files before storing or transferring them to prevent unauthorized access.

Example
Input File:

confidential.pdf

Encrypted File: confidential.pdf.enc

Secure Password Storage

Hashing is often used for password storage, but AES can also encrypt password databases.

Example
Input Password:
AdminPass123

Encrypted Password: ab34d9f0e7c245a2c98d3f7e24a78b9f

Encrypting API Keys and Authentication Tokens

Developers use AES to secure API keys, session tokens, and authentication credentials.

Example
API Key:
XYZ-API-SECRET-9876

Encrypted Output: e3b0c44298fc1c14...

Securing Communications

Messaging apps and secure email services encrypt messages using AES to ensure privacy.

Example
Input Message:
Hello, how are you?

Encrypted Output: b6e21a4c6f72a0...

Troubleshooting & Best Practices

Use a Strong Key

AES encryption is only as secure as the secret key used.

Prefer AES-256 for High Security

Provides the highest level of protection.

Avoid ECB Mode

ECB mode is less secure due to predictable encryption patterns.

Use Random IV

Improves encryption security in CBC and GCM modes.

Secure Key Storage

Store encryption keys separately from the encrypted data.

Test Decryption

Verify decryption before storing sensitive data permanently.

How to Use the AES Encryptor

  1. Enter Text or Upload a File: Provide the plaintext message or file.
  2. Choose Key Size: Select AES-128, AES-192, or AES-256 encryption strength.
  3. Select Encryption Mode: Choose from CBC, GCM, or ECB.
  4. Generate or Enter a Secret Key: Use a secure passphrase for encryption.
  5. Encrypt and Copy the Output: Store the encrypted data securely.
  6. Decrypt with the Same Key: Retrieve the original data using the correct secret key.

Specifications

  • Supported Key Sizes: 128-bit, 192-bit, 256-bit.
  • Encryption Modes: CBC, GCM, ECB.
  • Padding Methods: PKCS#7, ZeroPadding.
  • Supported Input Types: Text, binary files, JSON data.
  • Output Format: Base64 or hexadecimal-encoded ciphertext.
  • System Compatibility: Works on Windows, macOS, Linux, iOS, and Android.
  • Browser Requirements: Compatible with Chrome, Firefox, Safari, and Edge.

AES encryption is one of the most secure and efficient methods for data protection. Whether encrypting files, securing passwords, or encrypting API credentials, an AES Encryptor provides a robust and reliable solution for modern security needs.