Hyperledger Iroha v1.0.0_beta-3

[neewy]

In this release following changes were made:

Experimental multi-signature transactions support

This is one of the most important features so far, since it allows integrators of Iroha to customise validation logic and may help people who want to have smart-contracts support. Let me tell you more:

As per definition of multi signature account on wikipedia, it is a type of account, which has a special condition, associated with the account: it is related to a number of cryptographic signatures required to issue valid transactions from the account, or "quorum". Quorum is a requirement to have M of N signatures, attached to transaction, where N is a total number of public keys associated with the account.

It helps to build following logic:

• in order to form a valid transaction a user of Iroha has to apply several keys distributed across several people or devices to her transactions
• in order to form a valid transaction a user of a service with Iroha may send her transactions to a service, which validates some custom logic (amount of transferred assets, special fields, whatever) and this service can add a signature to transaction if it passed custom validation

What is different in Iroha, compared to other services, is that a user is able to send transactions to peer network which don't have all required signatures, "half-baked". Iroha puts them in a temporary storage and distributes across the network. In the end, when Iroha peer network has received enough "half-baked" transactions (quorum condition is valid) such transaction is sent to Iroha validation and is written in the ledger in case of successful validation.

If you are curious — check code in hyperledger-iroha/iroha#1260. Docs are going to be available gradually in our documentation website.

Block streaming

This would allow people to create services around Iroha that can listen to events happening on the chain — like specific transactions. In the future, it would allow us to implement block explorer functionality as well.

Python and Java Bindings for Windows platform

Check it in hyperledger-iroha/iroha#1335 and at artifact.soramitsu.co.jp website

Other features

• All assets now are returned instead of a single asset in GetAccountAssets (Add peer test fix iroha#1402)
• Permissions are now implemented as enums instead of strings (Refactor cache dropout iroha#1444, Update CODEOWNERS.md with new team members iroha#1434, Vote delay issue fix iroha#1407, Fix add_peer_test iroha#1408, Change query HTTP endpoint from GET to POST iroha#1384)
• Ability to specify postgres database name on irohad startup
• Improved stateless validation for precision ([SE] atomic task upload to external handler iroha#1370)
• Reduced CPU usage caused by compilation of regexes (Metrics docs for sara iroha#1345)
• Protobuf schema changes causes automatic generation of cpp files on build (Leader transaction transmission iroha#1441)
• Hash can now be created from hex string (Update docker publish target to hyperledger/iroha2 #1453 Fix some workflows # iroha#1475)
• Overwriting existing genesis block requires approval on Irohad start (thanks to @zeekhuge) (Extending get pending transactions iroha#1300)
• CLI now supports GetAccountAssetTransactions command (Fix [[deprecated]] in code iroha#1323)
• Significant compilation time improvements for irohad (Fix memory increase iroha#1424, Removal of arguments from test_network crate iroha#1414)

Fixes

• Fixed block query race condition which prevented making queries in a quick succession (Fix Fixed representation in schema  iroha#1396)
• Fixed a bug which prevented synchronization between a newly added peer and the network (Specify paths to config, genesis and trusted_peers files as cli arguments iroha#1390)
• Transfer asset now correctly handles mismatch between command's and asset's precision(GaroRobe/issue1465 iroha#1470)
• SetAccountDetail command can be executed on itself without any permissions (Updates workflow so that it matches main iroha#1452)
• If account name is not specified CLI will not issue a message about keypair generation (GraphQL and Query API RFC iroha#1455)
• fromPrivateKey now throws exception which can be caught (no more runtime errors!) (Replace iroha_error with thiserror and eyre iroha#1429)
• Simulator now retrieves block height from storage, rather than current proposal (Docs: Configuration Fix iroha#1360)
• When transaction is finalized before subscription, correct status is returned (hyperledger-iroha/iroha@dc6b0a4)
• Java bindings are generated in correct packages (Remove iroha_network in favor of iroha_p2p iroha#1382)

Docs

• Permissions documentation
• Transaction Statuses
• Entity-Relationship model

CI Improvements

• MacOS pipeline has --output-on-failure flag turned on by default (Integrate WASM Runtime into Iroha2 iroha#1425)
• Added MSVC build pipeline for shared model (Support/1.2.x Fix DCO to be force-pushed iroha#1358)

[kamilsa]

Please also add hyperledger-iroha/iroha#1402 to release notes. This is new account assets query allowing to retrieve all user's assets

[neewy]

@kamilsa for some reason it disappeared from notes

[neewy]

@kamilsa done

[sorabot]

SonarQube analysis reported 17 issues

• 1 major
• 16 minor

Top 10 issues

1. query_response_template.hpp#L204: syntax error
2. mutable_storage_impl.cpp#L44: Variable 'command_executor_' is assigned in constructor body. Consider performing initialization in initialization list.
3. postgres_block_query.hpp#L81: Unused private function: 'PostgresBlockQuery::getBlockIds'
4. postgres_block_query.hpp#L89: Unused private function: 'PostgresBlockQuery::getBlockId'
5. postgres_block_query.hpp#L99: Unused private function: 'PostgresBlockQuery::callback'
6. postgres_wsv_command.hpp#L107: Unused private function: 'PostgresWsvCommand::makeCommandResult'
7. temporary_wsv_impl.cpp#L36: Variable 'command_executor_' is assigned in constructor body. Consider performing initialization in initialization list.
8. temporary_wsv_impl.cpp#L37: Variable 'command_validator_' is assigned in constructor body. Consider performing initialization in initialization list.
9. yac_gate_impl.hpp#L66: Unused private function: 'YacGateImpl::copySignatures'
10. command_executor.cpp#L36: Function parameter 'command_name' should be passed by reference.