singleHash function
This function calculates a single SHA-256 hash of the provided input buffer. It computes a one-time SHA-256 hash without any further processing.
Implementation
Uint8List singleHash(Uint8List buffer) {
/// Calculate the SHA-256 hash of the input buffer.
Uint8List tmp = SHA256Digest().process(buffer);
/// Return the resulting hash.
return tmp;
}