Peel cucumber, cut in half and with a spoon remove seeds. Thinly slice and toss with salt and place in a strainer over a bowl. Drain for 15 minutes and then rinse under cold water a drain well. Set aside.
Bring a large pot of salted water to a boil. Fill a large boil with cold water and ice. Cut squid in 1/3 inch rings and half tentacles if large. Add to boiling water and cook for about 1 minute or until opaque turn off heat. Transfer to ice water with slotted spoon to stop cooking. Drain and reserve ice water. Soak rice sticks for about 6 – 8 minutes until soft. Transfer to ice water and drain well.
In a large bowl add all dressing ingredients and whisk to combine.
Wash herbs in several changes of cold water, drain and squeeze dry in paper towel. Coarsely chop. Add to dressing along with squid, rice sticks, red pepper, Thai chili pepper, cucumber and scallions. Toss and serve.