Crate codec_cbor 

Deterministic DAG-CBOR codec for authoritative, cryptographically signed data.

The decoder is strict by construction: it rejects non-canonical integers, indefinite-length items, floats, tags, out-of-order map keys, and trailing bytes, so a given value has exactly one accepted encoding. Decoding untrusted input is bounded in both memory and stack depth — container length prefixes are checked against the remaining input before any allocation, and nesting is capped at MAX_NESTING_DEPTH — so neither a crafted length nor pathological nesting can drive an out-of-memory or stack-overflow abort.

Enums

CborError

Error returned when decoding fails to conform to the DAG-CBOR profile.

CborValue

A decoded DAG-CBOR value.

Constants

DAG_CBOR_CODEC

dag-cbor multicodec code (IPLD)

MAX_NESTING_DEPTH

Maximum array/map nesting depth accepted by decode_dag_cbor.

Functions

compute_cid_dag_cbor

Computes the CIDv1 (dag-cbor, sha2-256) of bytes as a lowercase string.

dag_cbor_multihash

Returns a sha2-256 multihash of bytes for use in a CID.

decode_dag_cbor

Decode canonical DAG-CBOR bytes into a CborValue.

encode_dag_cbor

Encode a value using canonical DAG-CBOR.

is_valid_cid_string

Returns whether s parses as a valid CID string.

sha2_256_content_hash

Returns the raw sha2-256 digest of bytes.

try_parse_cid

Parses s as a CID, returning None if it is not a valid CID string.

verify_dag_cbor_cid

Recomputes the CID of bytes and compares it to cid_str.

Type Aliases

ContentHash

Hash output for sha2-256

DagCborMultihash

Multihash envelope size used by the CID stack for sha2-256 digests.