Jiema, meaning “unlock” in Chinese, is a practice that has been around for centuries. Used to protect sensitive information, cryptography is the backbone of secure communication. Dating back to ancient civilizations, techniques such as substitution and transposition ciphers were used to encode messages. Fast forward to the present day, and cryptography plays a critical role in securing our electronic communications. The advent of computers brought about more advanced encryption algorithms, ensuring secure online transactions and protecting sensitive data. As technology continues to evolve, Jiema remains an integral part of safeguarding our digital world.#32#