How AES Decryption Works
AES decryption reverses the encryption process to return the encrypted data to its original form. This requires the password, IV (Initialization Vector), and Salt used during encryption. AES-256-GCM also verifies data integrity during decryption and rejects any tampered data.
Requirements for Decryption
- Encrypted Text: AES-encrypted data (usually in Base64 format)
- Password: The same password used during encryption
- IV: Initialization Vector generated during encryption
- Salt: Salt used for key derivation
Decryption Errors and Solutions
- Incorrect Password: Make sure you enter the correct password (case-sensitive)
- Invalid IV/Salt: Use the exact values saved during encryption
- Corrupted Data: Encrypted text may have been altered while copying
- Format Error: Encrypted data must be in the correct format (Base64)
- Data Integrity: GCM mode rejects tampered data
Security Tips
- Never share your password
- Store IV and Salt securely
- Transmit encrypted data over secure channels
- Use additional security layers for sensitive data
- Regularly back up encryption parameters
AES Decryption Use Cases
- Restore encrypted backup files
- Read messages in secure messaging apps
- Access encrypted database records
- Open encrypted files downloaded from the cloud
- Read data securely after transfer
Why Client-Side Decryption?
This tool performs all decryption in your browser. Your password, encrypted data, and decrypted text are never sent to our servers. This ensures maximum privacy using a "zero-knowledge" approach: only you have access to your data.