pub fn hint_bit_unpack<P: Params>(data: &[u8]) -> Option<[[i32; 256]; 8]>Expand description
Unpack a hint vector from bytes.
Implements Algorithm 21 of FIPS 204 (HintBitUnpack). Inverse of
hint_bit_pack. Performs validity checks on the encoding: indices
must be strictly increasing within each polynomial, and cumulative
counts must be non-decreasing and within bounds.
Returns None if the encoding is malformed.