Quick Start Guide

Welcome to CryptKey, an offline password management tool focused on security and convenience.

This guide will help you get started quickly with CryptKey.

🚀 Installing CryptKey

1. Visit the Download page to get the latest installer.
2. After downloading, double-click CryptKey-x64-zh-CN_Setup.exe to run it.
3. Follow the installation wizard to complete setup.

🔐 Creating Your RSA Keys

When first launching CryptKey, you need to generate a pair of RSA keys (public and private) for encrypting and decrypting your data:

1. Open the CryptKey application.
2. Click Tools > Generate RSA Keys.
3. Set the key length (recommended at least 2048 bits for security).
4. Save your public key (.ckey) and private key (.ckpem) files securely.
5. CryptKey supports setting custom passwords for generated keys (empty by default). If you set a password, you'll need to enter it every time you read a password file. Without it, even with the key file, decryption is impossible! If left empty, no password is required when reading password files, but if the key is leaked, password files can be directly accessed!

Important Reminder

Always back up your keys to a secure location, such as a USB drive or other offline storage. If you lose your private key file, you won't be able to read your password files!

If you use a custom key password, remember it! Created keys don't support password modification, and lost passwords cannot be recovered!

🗂️ Creating Password Files

1. In the CryptKey main interface, click File > New Password File.
2. Choose a secure location to save the password file with .ckp extension.
3. If you've already set the key path in Configuration File Path, this password file will use those keys. Otherwise, you'll need to configure keys before completing creation.
4. If key path configuration is needed, select the private key from a key pair as the decryption key for this password file.
5. If key path configuration is needed, select the public key from the same key pair as the encryption key for this password file.
6. If your key has a password set, enter the correct key password. Otherwise, no input is needed.
7. Close the Configuration File Path dialog.

➕ Adding Account Information

In your created password file, you can add various account information:

1. Click the Read Passwords button to open the password file.
2. Enter account, password, purpose, notes, and other information.
3. Add multiple feature descriptions in the purpose or notes fields for easier searching later.
4. Clicking Add Password temporarily saves to memory; you still need to click Save Passwords to write to the password file.
5. Clicking Add and Write immediately triggers saving, writing all current modifications to the password file.

✍️ Modifying Keys

Based on RSA key characteristics, you can modify the keys used by password files using this method:

1. Create a completely new set of key files, including private and public keys.
2. In Configuration File Path settings, set Encrypted Password File Path to select the password file you want to modify.
3. In Configuration File Path settings, set Private Key Path to select the decryption key for this password file.
4. In Configuration File Path settings, set Public Key Path to select the public key of the new key pair you're switching to.
5. Click the Confirm button in Configuration File Path settings to save.
6. In the main interface, click Read Passwords to ensure passwords are correctly read.
7. In the main interface, click Save Passwords.
8. The password file has now been re-encrypted with the new keys!

Important Reminder

This operation carries some risk! Always back up your data!

If this is your first time modifying keys, make sure you understand the steps above. Back up both the original keys and password file, and ensure the newly generated public and private keys are properly paired! If your new keys have passwords set, you won't need to enter them during modification, only when reading the file after successful modification.

🔍 Searching Accounts

CryptKey provides powerful fuzzy search functionality to help you quickly find needed account information:

1. Enter keywords in the search box (can be account name, notes, or any feature description).
2. For security reasons, CryptKey doesn't support searching password content.
3. CryptKey will display matching results in the password list in real-time.
4. Double-click any account to view detailed information.

🕹️ Enabling/Disabling Accounts

CryptKey provides functionality similar to a recycle bin:

1. For abandoned or invalid accounts, double-click the account, then click Disable Password in the Decryption Result dialog.
2. By default, the password list shows all entries (All in the Password Enabled filter). You can manually switch to True (enabled) or False (disabled).
3. To re-enable a disabled account, double-click it and click Enable Password in the Decryption Result dialog.
4. Complete the operation by clicking Save Passwords to write changes to the file.

🚮 Deleting Accounts

To prevent accidental deletion, CryptKey only allows deleting accounts with False enable status:

1. Set the Password Enabled filter to False to show all disabled accounts.
2. For accounts you want to delete, double-click the account and click Delete Password in the Decryption Result dialog.
3. Complete the operation by clicking Save Passwords to write changes to the file.

🔄 Cross-Device Sync (Optional)

If you need to sync password data across multiple devices:

1. Export the password file from one device.
2. Copy the file to other trusted devices.
3. Import the password file on target devices and read it using the corresponding private key.
4. If only the private key is configured, the password file is essentially read-only (writing requires the public key, not the private key).

🛡️ Security Recommendations

To better protect your personal information, we recommend:

1. Create separate password files for different types of account information.
2. Back up keys to multiple USB drives, managing public and private keys separately.
3. If you configure key passwords, manage them securely as well.
4. Install CryptKey on computers in trusted environments, preferably keeping them offline.
5. Store password files on virtual disks or USB drives, mounting them only during use and ejecting immediately after.

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With these steps, you're ready to use CryptKey to manage and protect your various account passwords.

If you encounter any issues during use, please refer to the complete documentation or contact us.

📧 Email: CryptKey-sp@jainkre.com
💬 Enterprise WeChat Support: Available weekdays 10:00 AM - 5:00 PM