Pickle: A Simple Toy HASH

To make the cryptography design popular and useful as the name, we design the pickle toy HASH carefully. The pickle can deal large data into HASH value with 1024bytes block quickly. There are normal mode and operation mode of pickle from Keccak and Shabal respectively. The nonlinear transformation is from 3fish of Skein, which is only use up the MIX function. The pickle is speeded up because of no memory operation mode. The core function P is 8 times MIX without linear permutation and subkey involving in. So, the full pickle is similar to the interlace code plus a little bit nonlinear function. The nonlinear character is equal to the Skein so that we consider it's secure. The output from filter function strong the linear character of pickle.