coset

Prep for 0.4.2 release (#128)

• Add CoseKeyBuilder::new_mldsa_pub_key() helper, with associated MlDsaVariant enum.

• Bump MSRV to 1.81.
• Implement the core version of Error, making the std feature now a no-op.
• Add new IANA COSE algorithm values.
• Add helpers for converting EC keys to SEC1 octet strings.

Prep for 0.4.0 release (#117)

• Breaking change: alter type of crit field in Header to support private-use labels (in accordance with 9052 §3.1).
• Deprecate CoseMac[0]::verify_tag in favour of verify_payload_tag.
• Deprecate CoseEncrypt[0]::decrypt, CoseRecipient::decrypt in favour of decrypt_ciphertext.

Prep 0.3.8 release (#97)

• Make CoseSign[1]::tbs_[detached_]data methods pub.

Prep 0.3.7 release (#94)

• Bump MSRV to 1.58.
• Update dependencies.
• Fix bounds bug for label sorting.

Prep 0.3.6 release (#86)

• Helpers for ordering of fields in a COSE_Key:
  • Add Label::cmp_canonical() for RFC 7049 canonical ordering.
  • Add CborOrdering enum to specify ordering.
  • Add CoseKey::canonicalize() method to order fields.

CHANGELOG: update for release (#83)

• Add helper methods to create and verify detached signatures:
  • Add CoseSignBuilder methods add_detached_signature and try_add_detached_signature.
  • Add CoseSign method verify_detached_signature.
  • Add CoseSign1Builder methods create_detached_signature and try_create_detached_signature.
  • Add CoseSign1 method verify_detached_signature.
• Implement CBOR conversion traits for ciborium::value::Value.
• Update ciborium dependency.

Prep 0.3.4 release (#62)

• Add non-default std feature that turns on impl Error for CoseError.
• Add cwt::ClaimsSetBuilder::private_claim method.
• Update documentation for existing encryption methods to make it clear that they only support AEAD encryption.

Prep 0.3.3 release (#57)

• Add CoseKeyBuilder methods kty, key_type and new_okp_key.

Prep 0.3.2 release (#52)

• Add basic CWT support in cwt module, via the ClaimsSet type.

Fixes #49

• Implement Display for CoseError.
• Fix Cargo.toml to indicate reliance on alloc feature of ciborium-io.
• Make AsCborValue trait public.

• Change to use ciborium as CBOR library. Breaking change with many knock-on effects:
  • Re-export ciborium as coset::cbor (rather than sk-cbor).
  • Use ciborium's Value type rather than sk-cbor's version.
  • Change CoseError to no longer wrap sk-cbor errors.
  • Drop derive of Eq for data types (ciborium supports float values, which are inherently non-Eq)
  • Add #[must_use] attributes to builder methods.
  • Update MSRV to 1.56.0, as ciborium is edition=2021
• Use new ProtectedHeader type for protected headers (breaking change). This variant of Header preserves any originally-parsed data, so that calculations (signatures, decryption, etc.) over the data can use the bit-for-bit wire data instead of a reconstituted (and potentially different) version.
• Add more specific error cases to CoseError (breaking change):
  • Use new OutOfRangeIntegerValue error when an integer value is too large for the representation used in this crate.
  • Use new DuplicateMapKey error when a CBOR map contains duplicate keys (and is thus invalid).
  • Extend DecodeFailed error to include the underlying ciborium::de::Error value.
  • Use new ExtraneousData error when data remains after reading a CBOR value.
  • Rename UnexpectedType error to UnexpectedItem to reflect broader usage than type.
• Add a crate-specific Result type whose E field defaults to CoseError.

• Change to use sk-cbor as CBOR library, due to deprecation of serde-cbor. Breaking change with many knock-on effects:
  • Re-export sk-cbor as coset::cbor.
  • Use sk-cbor's Value type rather than serde-cbor's version.
  • Change encoding methods to consume self.
  • Change encoding methods to be fallible.
  • Move to be no_std (but still using alloc)
  • Add CoseError error type and use throughout.
  • Use Vec of pairs not BTreeMaps for CBOR map values.
  • Use i64 not i128 for integer values throughout.
  • Drop use of serde's Serialize and Deserialize traits; instead…
  • Add CborSerializable extension trait for conversion to/from bytes.
  • Drop from_tagged_reader / to_tagged_writer methods from TaggedCborSerializable trait.
  • Derive Debug for builders.
  • Convert CoseKeySet to a newtype, and add standard traits.

• Add fallible variants of builder methods that invoke closures (#20):
  • CoseRecipientBuilder::try_create_ciphertext()
  • CoseEncryptBuilder::try_create_ciphertext()
  • CoseEncrypt0Builder::try_create_ciphertext()
  • CoseMacBuilder::try_create_tag()
  • CoseMac0Builder::try_create_tag()
  • CoseSignBuilder::try_add_created_signature()
  • CoseSign1Builder::try_create_signature()
• Upgrade dependencies.

• Make KeyType and KeyOperation public.
• Upgrade dependencies.

• Initial version, using serde-cbor as CBOR library.