that the sponge is being squeezed. spongeSqueezing ) type Digest struct { a [1600 / 8]byte // main state of the hash // a[n:rate] is the buffer. If absorbing, it's the remaining space to XOR // into before running the permutation. If squeezing, it's the remaining // output to produce before running the permutation. n, rate int // dsbyte contains the "domain separation" bits and the first bit of // the padding. Sections 6.1 and 6.2 of [1] separate the outputs of the // SHA-3 and SHAKE functions by appending...