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One Time Pad (OTP) Exercises

Below is a sneak peek of this content!

Updated 2020-12-01 I've updated the OTP worksheet to have 10 lines, to match the OTP Generator pads. Training OTP's This is a set of training OTP's generated with our One Time Pad Generator as seen in the live video I did. If you'd like your own OTP Generator seen the information at the bottom of the page. Checkerboard The checkerboard converts letters to numbers. Click on the picture for the download. Math Base 10 math can be a little confusing when you first start, or when you rush or are tired! This cheat sheet helps. Select the top number in the row and the number to subtract in the column. Brevity Words Brevity codes are used to shorten words by making them 4 digits preceded by a zero for 'code' indicating a code word follows. A brevity code can be a real word such as "authenticate" or it can be a code word such as "cerberus," where the meaning is only known to those who have the code book. You can download a brevity codebook here. OTP Worksheet This is the worksheet that I made and use to encrypt and decrypt the OTP.Updated 2020-12-01 this worksheet now has 10...
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6 thoughts on “One Time Pad (OTP) Exercises”

  1. Nick Meacher says:
    2020-11-27 at 20:34

    2020-11-27
    07769 47513 90870 25477 53494
    62731 17910 62179 88133 73670
    89173 05456 66750 92596 87266
    67089 04947 60946 56918 06353
    68566 74690 30885 40950 91154
    29627 36443 98913 80450 72381
    04989 93230 32468 66466 69071
    47102 45153 00279 79690 89252

    Log in to Reply
    1. [email protected] says:
      2020-11-27 at 20:40

      Can’t find the right tool for this.

      Log in to Reply
      1. Nick Meacher says:
        2020-12-01 at 23:41

        It’s on this page at the top TRAINING OTPs but this link will go direct to it
        https://drive.google.com/file/d/1ROhknOm6crHN4ryohnNkW40HNZ_XQ9Cg/view?usp=sharing

        Log in to Reply
    2. Nick Meacher says:
      2020-11-27 at 22:42

      CORRECTED LAST LINE
      87102 45153 00280 79690 89252

      Log in to Reply
  2. Agent says:
    2022-08-22 at 08:30

    Any chance of getting the decrypt math matrix? Addition?

    Thanks…

    Log in to Reply
    1. Nick Meacher says:
      2022-08-24 at 05:25

      The decrypt is addition – base 10. So add the numbers and drop off the “1” is its over 9

      Log in to Reply

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