Case study regarding cryptography

Mobile phones are considered to be the most common communication devices in history, mobile phones are not only used for casual greetings but also, sending and receiving important data such as, social security numbers, bank account details and passwords. Public key cryptography is a proven security solution, which can be used to secure the mobile communications. ABC company have been proposed; server-based framework public key cryptography solution to secure the mobile communications. Third party servers were used to check the certificates, authenticating the communicating parties, key distribution, etc. The proposed framework consists two type of ciphers; i) Public key Cryptosystem (RSA) and, ii) decrypt messages through the digital signature. In operating system; there are three procedures Schedule activities inbetween CPU and RAM to be considered in order to apply the secure communication, Long-Term Scheduler, Short-Term Scheduler, and Medium-Term Scheduler;