Complex sentence: The framework for establishing security associations is provided by the Internet Security Association and Key Management Protocol (ISAKMP), protocols such as Internet Key Exchange and Kerberized Internet Negotiation of Keys provide authenticated keying material.
Split into simpler sentences: The framework for establishing security associations is provided by the Internet Security Association and Key Management Protocol (ISAKMP). Protocols such as Internet Key Exchange and Kerberized Internet Negotiation of Keys provide authenticated keying material.