US Patent 11646883 Communication latency based cryptographic negotiations

A method of selecting a particular cryptographic algorithm for an optimal cryptographic negotiation in which higher security level is obtained with an acceptable performance speed. The method includes exchanging information between a first device and a second device for establishing a secure communication connection, measuring network latency between the first device and the second device, and selecting a particular cryptographic algorithm from among a plurality of mutually supported cryptographic algorithms based on the network latency for establishing the secure communication connection.