How do you make this stamp graphic? Is there any psd material or brush?

PS to do seal steps:

1, using the "Rectangle Tool" to draw a rectangle

2, to the red rectangle layer "add vector mask" as shown in the figure below (in the);

3, the foreground color fill with pure black, use the "brush tool" on the mask to erase the unwanted parts

4, add text can be

Certainly there is material ah, stupid, do not come out of it is the material it, I le a go.

PS in the default brush does not have the effect of the seal, you need to download their own