Critto Util

CrittoUtil is a simple yet powerful cryptography toolkit designed for developers, students, and anyone who needs to encrypt, decrypt, or analyze data quickly and securely.

🔐 ENCRYPTION & DECRYPTION
Supports the most common symmetric cryptographic algorithms:
• AES-CBC — Advanced Encryption Standard in Cipher Block Chaining mode
• AES-ECB — Advanced Encryption Standard in Electronic Codebook mode
• DES-CBC — Data Encryption Standard in Cipher Block Chaining mode
• DES-ECB — Data Encryption Standard in Electronic Codebook mode

Enter your text, choose an algorithm, provide the key, and get the result instantly. Encrypted output is returned as Base64-encoded text, ready to be copied or shared.

🔑 KEY GENERATOR
Not sure which key to use? CrittoUtil automatically generates cryptographically secure keys for each algorithm:
• 8 bytes for DES
• 16, 24, or 32 bytes for AES

Keys are generated using a secure random number generator and are immediately available for use in encryption.

#️⃣ MD5 HASH
Instantly compute the MD5 hash of any text. Useful for verifying data integrity, comparing strings, or generating unique identifiers.

📋 KEY HISTORY
The app keeps track of recently used keys so you can quickly find them again without having to re-enter them each time.

📋 COPY WITH ONE TAP
All results can be copied to the clipboard with a single tap, enabling a fast and efficient workflow.

🌍 MULTILINGUAL
The interface is available in both Italian and English.

🎨 LIGHT & DARK THEME
CrittoUtil supports both light and dark themes, automatically adapting to your system preferences.

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NOTE: CrittoUtil is a utility and educational tool. It is not recommended to use DES or ECB mode to protect sensitive data in production environments — prefer AES-CBC or more modern algorithms. The app never transmits any data to external servers — everything runs locally on your device.