One Time Pad
Written by Dr. Jim Marquardson
Assistant Professor of Information Assurance and Cyber Defense
College of Business, Northern Michigan University
jimarqua@nmu.edu
updated February 26, 2021
Encryption and Decryption
Enter the key and input in the space below. All lower case letters will be changed to upper case automatically.
| Characters Used | |
| Encryption Key | |
| Message to Encrypt or Decrypt |
Output: