Internet Protocol version 6 (IPv6) is the most recent version of the Internet Protocol (IP), which provides unique IP addresses for all devices connected to the internet. IPv6 is designed to replace IPv4, which is running out of available addresses. IPv6 is used in many applications, such as IoT, smart. Learn about Cryptography is the practice of using mathematical algorithms to secure communications and protect information. Cryptography is used in many applications, such as online banking, secure messaging, and digital signatures. Popular cryptographic algorithms include RSA, AES, and SHA.