Proxy signature systems have great applications in e-business whose secure-ty is based on the difficulty of integer factoring or the difficulty of solving the common discrete logarithm problem.

A unit used to express relative difference in power or intensity, usually between two acoustic or electric signals, equal to ten times the common logarithm of the ratio of the two levels.

Common Mathematical Functions: Logarithm, Power, Exponential, Reciprocal, Square Root 8!