koni_codecs

Pure Dart compression codecs: DEFLATE/inflate, gzip framing, and LZMA/LZMA2 (decoders and encoders), as synchronous chunked converters, usable standalone or inside the koni_archive ecosystem.

A separate package:koni_codecs/crypto.dart entrypoint provides the cryptographic primitives the archive formats need to read and write password-protected archives: AES-128/192/256 with CBC and CTR modes, SHA-1, SHA-256, HMAC, and PBKDF2. Standards-defined, vector-tested, zero-dependency, and dart2js/dart2wasm-exact. These exist to read and write encrypted archives. They are not constant-time; don't build interactive security systems on them.

Part of the koni_archive monorepo.

Status: pre-release (0.x, git-only). The API stays 0.x with lockstep minor bumps until it stabilizes; see the repository's ROADMAP.md.

Libraries

crypto

Pure Dart cryptographic primitives for the archive formats that need them (Phase 3, doc/encryption-scope.md): AES with CBC/CTR modes, SHA-1, SHA-256, HMAC, and PBKDF2.

koni_codecs

Pure Dart compression codecs as synchronous chunked converters, usable standalone with no archive knowledge.