STEP 1 : For the given ciphertext in the PART I of the experiment page, the first step is to generate ciphertext by clicking on the "Next CipherText" button.

STEP 2 : Calculate frequencies of generated ciphertext by clicking on "Calculate Frequencies in Ciphertext" button

STEP 3 : Copy the generated ciphertext from PART I and paste in "Scratchpad" area of PART II

STEP 4 : Analyse similarties between "Calculated Frequencies Table" and "English Alphabet Frequencies Table"

STEP 5 : Based on similarities,try to make a frequency based estimation for each character of ciphertext

STEP 6 : Replace characters of CipherText in Scratchpad with a character estimated previously using a Modify function of PART II

STEP 7 : Based on Hints from Ciphertext in "Scratchpad" area make more replacement of ciphertext characters

STEP 8 : Repeat Step 7 till you get a meaningful English Text

STEP 9 : Finally, observe the deciphered plaintext in Scratchpad Area,if a meaningful English text is formed cut-and-paste it in the text-field named "Solution Plaintext" of PART III. Also enter the final character mapping in the"Solution Key" in PART III and click on "Check Answer" button.

STEP 10[OPTIONAL] : Verify that your answer is correct, by encrypting the solution plaintext with your key in PART IV.