We can encrypt/decrypt an image using a simple mathematical logic. It requires two things, data and key and when XOR operation is applied on both the operands i.e data and key, the data gets encrypted but when the same process is done again with same key value data gets decrypted.
* go to file > choose the image to encrypt
* go to JCrypt > set 16 byte pass key
* Encrypt
* Replace the image by the Encrypted by Save or create new by Save As
* select the encrypted image
* set the pass key
* Decrypt
