Rlang is meant to create fast and uncluttered WebAssembly code from the comfort of a Ruby-like language. It is actually made of two things: the Rlang language that supports a subset of the Ruby language and a compiler transforming this Ruby subset in a valid and fully runnable WebAssembly module.

Whirlpool is a hash designed after the Square block cipher, and is considered to be in that family of block cipher functions.