Privacy with One-Time Pads
One-time pad encryption is the gold standard for secure communication. When used correctly, it is mathematically unbreakable because the encryption key is truly random, as long as the message, and used only once. This ensures that no unintended party can decrypt your communication.
Key Security is Everything
The entire security of this system relies on keeping your keys absolutely secure and ensuring that each key is used for only one message. If a key is reused, the encryption becomes vulnerable to attacks. Similarly, if an unauthorized party gains access to your keys, they can decrypt your messages. Treat your keys like you would treat highly sensitive information, and never share them over insecure channels.
Important: There is nothing inherently special about how the keys are generated. The fact that this is a public web page has no impact on the security of the system. The true strength of one-time pad encryption lies in the privacy and secrecy of the keys themselves. As long as your keys remain private and unique for each message, the system is secure.
You can generate as many keys as you need using the One Time Key Maker. We recommend generating a sufficient number of keys in advance and storing them securely for future use. This way, you can ensure you always have a fresh key ready for each message.
How to Securely Share Keys
To securely communicate keys with someone you want to exchange messages with, consider these methods:
- In-Person Exchange: Transfer the keys onto a secure physical medium, such as a USB drive, and hand it directly to the recipient. Ensure the USB drive is securely stored until delivered, and securely erase the data after use if needed.
- Encrypted Channels: If an in-person exchange isn't feasible, use a secure and encrypted communication channel (e.g., an end-to-end encrypted messaging app) to share the keys.
Remember, the goal is to ensure that only you and your intended recipient have access to the keys. Once the keys are exchanged, store them in a secure location, such as a password-protected file or an encrypted storage device.
How to Use the Tools
Follow these simple steps to use the tools effectively:
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Step 1: Go to the One Time Key Maker page. Generate a pad of 10 keys. Each key is 140 characters long and can be used for a single message. Copy the keys and store them securely.
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Step 2: When you're ready to encrypt a message, go to the Message Encrypt/Decrypt page. Paste your plaintext message and one of the keys into the corresponding boxes. Click "Encrypt" to generate an encrypted message.
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Step 3: Share the encrypted message with the recipient. Ensure they have the corresponding key from your key pad to decrypt it.
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Step 4: The recipient can decrypt the message by pasting the encrypted message and the key into the "Message Encrypt/Decrypt" page and clicking "Decrypt." The decrypted message will appear in the appropriate box.
Important: The Key Generator and Encrypt/Decrypt pages do not save or transmit any data. Feel free to inspect the source code to verify this. For best security practices, clear your browser cache and history after using these tools to ensure no residual data remains accessible.