yasna

• Increase MSRV to 1.60
• Bump Rust edition to 2021
• Bump bit-vec version

• Strip leading zeros and sometimes leading 255s in write_bigint_bytes

• Ensure yasna builds with -Z minimal-versions
• Addition of {read,write}_bigint_bytes

• Fix overflow when reading length
• Switch from chrono to time

• Increase MSRV to 1.36.0
• Switch to Github actions for CI
• no_std support (requiring alloc)
• addition of default-off std feature to enable std-related features

• Disable default features of chrono (except std), removing dependency

• Support for reading/writing BITSTRING without needing the bit-vec crate
• Addition of try_{construct_der,construct_der_seq}

• Increase MSRV to 1.17.0
• Update to bit-vec 0.6.1
• Support for reading/writing IA5String, BMPString

• Ability to read/write raw DER
• Addition of #![deny(missing_docs)] to the library root
• Ability to read/write ENUMERATED

• Support for more datatypes (R/W):
  • UTF8String, NumericString, PrintableString, VisibleString,
  • UTCTime, GeneralizedTime,
• Completed support for these datatypes:
  • SEQUENCE OF, DEFAULT, OPTIONAL,
• Addition of traits BERDecodable and DEREncodable
• Reduction of dependencies
• Updates of dependencies (num to 0.2, bit-vec to 0.5)
• Features were renamed and turned off by default
• Addition of @est31 as maintainer

• Both readers and writers implement common core datatypes, including:
  • BOOLEAN, INTEGER, BITSTRING, OCTETSTRING, NULL, OBJECT IDENTIFIER,
  • SEQUENCE, SET, SET OF,
  • Explicitly/Implicitly tagged types.
• Public APIs of readers and writers are documented and most of them are tested. These seem almost frozen.
• Now it depends on "bit-vec" crate to handle bit strings.
• ASN.1 data models are now in asn1::models. These are waiting for refactoring and API change, as well as FromBer traits.

Both writers and readers are refactored.

• Writing SET values and tagged values.
• Now DERWriter and DERWriterSeq are different.
• Readers are currently in thorough refactoring.
  • They are split into several files internally.
  • BERReader and BERReaderSeq are now different.
  • Several changes on naming.
  • The CER (Canonical Encoding Rules) support is dropped.
  • Some tests are added.

From this version, writing DER is supported with very limited functionality.

• Documented writer functionality with support for:
  • BOOLEAN
  • INTEGER
  • OCTET STRING
  • NULL
  • SEQUENCE

The project is splitted from the author's early work on TLS.

• Undocumented reader functionality with support for:
  • BOOLEAN
  • INTEGER
  • BIT STRING
  • OCTET STRING
  • NULL
  • SEQUENCE
  • SEQUENCE OF
  • SET OF
  • Tagged values
  • Object identifiers
• Deserialization functionality, mainly for reading X.509 certificates.