Step I : Choose a mode of operation from PART I

Step II : Select KeySize, Plaintext, KeyText, Intialization vector(IV)(for ECB and OFB modes only) and CTR(forctr mode only) in PART II

Step III : Whenever necessay use XOR opeartion in PART III in accordance with choosen mode of operation

Step IV : Use fuction FK and "Key in hex:" field in PART IV should be filled keytext generated in Step2

Step V : Fill "Plaintext in hex:" field with approriate value in accordance with choosen mode of operation and click on encrypt button

Step VI : Enter your answer in PART V to check your ciphertext