Embed encrypted messages in an image and then extract them back

1. Upload an image. Feel free to use a random image provided by the website
2. Enter the keyword
3. Enter the message
4. Press the embed & download button

1. Upload the image containing the message
2. Enter the keyword
3. Press the extract button
4. When a success message is shown, see the section below for the message

1. We get the following inputs from the user: an image, a keyword and a message
2. The message is encrypted with the help of the keyword by using Vigenere's cipher
3. The encrypted text is converted to an array of numbers using ASCII encoding
4. The alpha channel data in the image is modified to represent the array of numbers and a unique end token

1. We get the following inputs from the user: an image and a keyword
2. The alpha channel content of the image is parsed until a unique end token is reached to obtain an array of numbers
3. The array of numbers is converted to encrypted text using ASCII encoding
4. The extracted text is decrypted using the keyword and then displayed to the user