Technology Today: Cryptography

byMinni Agarwal

Cryptography is a way to prevent unauthorised access to information and keep data secure. The prefix ‘crypt’ means ‘hidden’ and the suffix ‘graphy’ means ‘writing’. Cryptography helps to keep information hidden from people who should not see it. Special codes are used to keep the information secret. This is crucial for ensuring the security of data during storage and transmission.

People have been using cryptography to encode messages for a very long time and we continue to use it today for sensitive data like bank card information, computer passwords, online shopping payments and instant messages. Cryptography involves encrypting and decrypting data. The process follows the