3-way-Encryption-and-decryption

This project is divided into 3 parts

1. Captcha generation

   • Creating random captcha by randomizing alphabets and numbers
     
     
   • Writing the captcha onto the image
     
   • Generating a unique number from captcha to decide the co-ordinates for embedding

2. Encrypting

   • Taking the message from the user.
   • Encryting the message using AES with a password.
   • Converting the binary encoded message into the string for embedding.

3. Embedding

   • Converting the message into ascii format
   • Storing the message inside the image pixel color(r,g,b)
     
     As you can see there is no difference b/w the original and embedded image because we only manupilated with last few bits of the color.

For Extracting the message.

• We input the embedded image
• We input the captcha for Finding the co-ordinates where message is embedded
• We input the Password for decrypting the extracted message
• If there is any missmatch, the hidden message will not be extracted.

I will be much obliged if you would provide your valuable inputs.

Thank you.