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* CORDA-2115: Notary whitelist verification changes - For regular and contract upgrade transactions: check that the notary is in the network parameter whitelist - For notary change transactions: check the the new notary is in the network parameter whitelist. This enabled support for network merging: the old notary doesn't have to be in the current network's notary whitelist for re-pointing old states to another notary. These checks are done during transaction construction/verification and also by the non-validating notary. * Address comments * Remove stale todo * Use notary whitelist of current network parameters for platform versoin 3 * Cleanup test * Move `getHistoricNotary` to `HistoricNetworkParameterStorage` in `core.internal` * Require `newNotary` to be notary on the network map during notary change
Corda
Corda is an open source blockchain project, designed for business from the start. Only Corda allows you to build interoperable blockchain networks that transact in strict privacy. Corda's smart contract technology allows businesses to transact directly, with value.
Features
- Smart contracts that can be written in Java and other JVM languages
- Flow framework to manage communication and negotiation between participants
- Peer-to-peer network of nodes
- "Notary" infrastructure to validate uniqueness and sequencing of transactions without global broadcast
- Enables the development and deployment of distributed apps called CorDapps
- Written in Kotlin, targeting the JVM
Getting started
- Read the Getting Started documentation
- Run the Example CorDapp
- Read about Corda's Key Concepts
- Follow the Hello, World! tutorial
Useful links
- Project Website
- Mailing List
- Documentation
- Stack Overflow Tag
- Slack Channel
- Meetups
- Training Courses
Contributing
We welcome contributions to Corda! Please see our CONTRIBUTING.md.
License
Acknowledgements
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