Please let me know which language you use and which program ,and please explain your codes using notes.

The topic is about :

Do an application using java or android or c language ( i prefer java and please indicate the program) , this application is about 2 persons Alice and Bob each talk to the other using 3 DES , the project MUST implement RSA for key exchange + 3DES for encryption decryption + OFB as mode of operation., the details are available in the previous picture

The idea is to design and implement a hybrid crypto system that involves 3DES and RSA. 1) RSA must be used at the beginning to securely exchange the session keys of 3DES between Alice and Bob. 2) 3DES must be used for encryption/decryption of the exchanged data. 3) OFB should be used as a mode of operation to transfer the blocks of data in 3DES. You can use any programming language of your choice such as Java, C, Python, MATLAB, etc