One Time Pad Cipher
The one time pad is, theoretically, an unbreakable cipher. In order for it to work, a pre-shared key of the same length as the message must be shared with the intended recipient. The below tool allows you to encrypt or decrypt one-time pads if you have the key. To increase the security, the key should not contain repeating characters. To help with this, you may generate a random key automatically if you choose.
Enter a keyword, phrase or alphabet and the rest will be calculated for you.