CKB Dev Log 2023-08-09

[anipenguin]

“unstoppable” - AI & @EthanYuan

Updates

Features

• ckb-auth now supports Ripple
  • Support ripple ckb-auth#2

Improvements

• Added rust test cases and fuzzing for moleculec-c2, a collection of improved C plugin for the molecule serialization system
  • Add rust test cases and fuzzing XuJiandong/moleculec-c2#13

Fixes

• Several issues including CI errors have been resolved in ckb-rust-sdk
  • Fix get_fee_rate_statics param, Fix cargo-deny installation, Fix CI test_get_indexer_tip ckb-sdk-rust#84
• A control (ctrl) handler has been implemented in https://github.com/nervosnetwork/ckb to fix a timeout issue in the integration test
  • chore(test): add ctrl handler and fix integration test timeout issue #4089

In Pipeline…

• ckb is adding a softfork implementation of TxoCommitments, enabling users to prove transaction output (cell) existence and status (live / dead) efficiently. The implementation uses the merkle mountain range (MMR) as an internal data structure, storing the hash of cell status as an MMR element.
  • WIP: feat: add CellsCommitments softfork #4090
• ckb is implementing an asynchronous Synchronizer block download and ChainService block validation. These improvements aim to enhance blockchain synchronization and validation processes.
  • WIP: Asynchronous Block Download and Verification #3958
• A refactoring of ckb's ckb-types by splitting the molecule generated types into a separate crate named ckb-gen-types
  • WIP: refactor: split ckb-gen-types from ckb-types #4073
• We are exploring the use of other C compilers, such as clang and CompCert, for the ckb-vm contract compiler. This experimentation aims to reduce cycle consumption during contract execution within the ckb-vm. For more details:
  • Use clang to build ckb-auth
  • Use clang to build secp256k1
  • Use CompCert to build secp256k1
• ckb-auth is planning to support secp256r1, a widely-used elliptic curve, following an optimization in libecc. This enhancement is expected to improve performance and expand cryptographic options.
• A cross-language review of ckb-sdks is in progress, encompassing languages like JavaScript, Rust, Java, and Go. This review aims to enhance the user experience for both fundamental and advanced usage of the CKB ecosystem.
• Cleaning up the transaction pool
  • WIP: Tx pool Replace-by-fee #4079
  • WIP: Tx pool rewrite with multi_index_map #3993