Sir,
I recently worked on a similar project (Vigenère Cipher using PHP, HTML ...) so I can deliver in just few hours if hired.
I'm very experienced with cryptography and cyber-security projects due my work and studies.
If you're not satisfied I offer as many revisions as needed free of charge.
I'm available now and most hours of the day, you can contact me or leave a message.
You can also check my profile and portfolio for previous reviews and projects.
Regards.