Common use of Communication Delay Clause in Contracts

Communication Delay. Due to the reliable group communication platform, network delay is amplified by the necessary acknowledgments between the group members. The speed of light puts a lower bound on the minimum network delay. For example, a laser pulse that travels through a fiber optic cable takes ≈ 10 ms to travel from New York to San Francisco, ≈ 21 ms from Paris to San Francisco, and ≈ 40 ms from London to Sydney. In practice, networks today are about 3 to 4 times slower than the lower bound. To put this into perspective, an 850MHz Pentium III PC performs a single 512-bit modular exponentiation (one of the most expensive, but most basic public key primitives) in under 1 ms. Moreover, the speed of computers continue to increase. Comparing this with the WAN network delay, it is clear that reducing the number of communication rounds is much more important in the long run for an efficient group key agreement scheme than reducing the computation overhead.

Communication Delay. Due to the Since we assume a reliable group communication platform, network delay is amplified by the necessary nec- ▇▇▇▇▇▇ acknowledgments between the group members. The speed of speed-of-light puts imposes a lower bound on the minimum network delay. For example, a laser pulse that travels through a fiber optic cable takes ≈ 10 ms to travel from New York to San Francisco, ≈ 21 ms from Paris to San Francisco, and ≈ 40 ms from London to Sydney. In practice, networks today are about 3 to 4 times slower than the these lower boundbounds. To put this into perspective, an 850MHz Pentium III PC performs a single 512-bit modular exponentiation (one of the most expensive, but most basic public key cryptographic primitives) in under 1 ms. Moreover, the speed of computers computation continue to increase. Comparing this with In the WAN network delaylong run, it is clear that seems natural that, for group key management reducing the number of communication rounds is much more important in the long run for an efficient group key agreement scheme than reducing the computation overhead.