[lib] script: implement crypto ops
[lib] script: implement crypto ops

mezzovide/picocoin,dtebbs/picocoin,mezzovide/picocoin,dtebbs/picocoin,mezzovide/picocoin,01BTC10/picocoin,favioflamingo/picocoin,01BTC10/picocoin,01BTC10/picocoin,jl777/picocoin,favioflamingo/picocoin,jl777/picocoin,jl777/picocoin,dtebbs/picocoin