A valid digital signature gives a recipient reason to believe that the message was created by a known sender (authentication), that the sender cannot deny having sent the message (non-repudiation), and that the message was not altered in transit (integrity).
Load index is an assigned number that corresponds with the load-carrying capacity of a tire. Most passenger car tire load indexes range from 75 to 100, but a few carry more. You'll also find the maximum load elsewhere on the tire sidewall, both in lbs and kg.
Best Answer: The load index refers to the load-carrying capacity of a tire, or how much weight a tire can support. For example, if a tire has a load index of 89, it can support 1,279 pounds (from below chart) at maximum air pressure. tire with a lower load index than the Original Equipment tire indicates the tire does not equal the load capacity of the original. Typically, the load indexes of the tires used on passenger cars and light trucks range from 70 to 110. Source(s): info from here http://www.tirerack.com/tires/tiretech/t...