Avalon pre-release 0.6

This release for Avalon adds support for the worker pools as per the Trusted compute specification v1.1. Below are the features supported.

• Worker Pools
  • Isolate work order execution from key management.
  • Worker pool consisting of multiple Work order Processing Enclaves (WPE) to process similar type of workloads.
  • Single Key Management Enclave (KME) per worker pool to manage worker signing and encryption keys.
  • Worker pool support is available for both direct and proxy (blockchain) model in addition to Singleton (Pinned) worker.
  • Ability to run multiple worker pools in parallel where each worker pool can process different workloads.
• Avalon Python Crypto Utility adds support for Pycryptodomex package for encryption and ecdsa package for signing and verification.
• Support for Receipt handling in direct model.
• Refactored Proxy model to use a common API to integrate DLT frameworks like Fabric and Ethereum Besu/Ganache with Avalon.
• Nginx based Load Balancer for redirecting requests to multiple Avalon http listeners.
• Improved docker compose files to manage multiple configurations.
• Initial integration of Graphene Library OS runtime: Hyperledger Avalon Python based Worker for Graphene-SGX.

Known issues:

• Worker keys are not persisted across restarts of Key management enclave and Singleton(Pinned) enclaves.
• Receipt handling support is not available for Fabric and Ethereum Proxy model.
• In proxy model, workers are added to blockchain only initially when Avalon starts. Dynamic addition of worker to blockchain is not supported.

Avalon pre-release 0.5.5

This release for Avalon adds support for Proxy Model in Trusted compute specification v1.1. Below are the features supported.

• Proxy model support for Ethereum (Hyperledger Besu, Ganache) and Hyperledger Fabric blockchain.
• Support for Receipt handling for direct model.
• Single SGX TEE Worker is supported which can contain multiple workloads.
• External data access from SGX TEE.
• Improved Avalon modularization and added Dockerfile and Kubernetes deployment files for Avalon components.
• Sample workloads and client applications.
• Documentation to build and run Avalon, FAQs and example applications.

Known issues:

• Simultaneous work order requests from multiple clients is not yet stable for proxy model.
• Receipt handling support is not available for Fabric and Ethereum Proxy model.
• Fabric version 1.4.4 is used as default (instead of 2.0) for Fabric proxy model due to long time to start Fabric 2.0 blockchain nodes.
• WorkerLookupNext API is not yet functional.