Decode a BigUint from an untagged CBOR byte string.
This function is intended for use in tag summarizers where the tag has
already been stripped. It expects a CBOR byte string representing the
big-endian magnitude of a positive bignum (tag 2 content).
Enforces canonical encoding: no leading zero bytes (except empty for zero).
Decode a BigUint from an untagged CBOR byte string.
This function is intended for use in tag summarizers where the tag has already been stripped. It expects a CBOR byte string representing the big-endian magnitude of a positive bignum (tag 2 content).
Enforces canonical encoding: no leading zero bytes (except empty for zero).