hyperledger-fabric

What are Members and Admins in Endorsement Policy of hyperledger-fabric

此生再无相见时 提交于 2021-01-21 06:01:34
问题 From the Docs of Hyperledger-Fabric "In Endorsement Policy , Currently, two roles are supported: member and admin." What are these members and Admins. Is they are equal to Peers ?. In Orgs crypto-config folder there are Admin certs and User certs , is these are the certificates that are used to Sign the Endorsement?. Say I gave an endorsement policy that admin of org1 has to sign , then i enrolled into the network by using "Jim" credentials , then upon submitting transaction how does the

How to ensure data integrity in Hyperledger Fabric when someone intentionally changes data in couchdb directly

混江龙づ霸主 提交于 2021-01-07 07:47:29
问题 I'm currently having 2 organizations inside my Hyperledger Fabric, and I'm accessing both of the organizations using generated API by composer-rest-server . According to my understanding, Hyperledger Fabric keeps its states inside couchdb and keeping its ledger in every organizations thus providing integrity. The problem is let's say, when I try to change some sort of data directly in couchdb using cURL method on org2 , it shows lack of data integrity. for example : This Data "_id":"

How to ensure data integrity in Hyperledger Fabric when someone intentionally changes data in couchdb directly

六眼飞鱼酱① 提交于 2021-01-07 07:38:59
问题 I'm currently having 2 organizations inside my Hyperledger Fabric, and I'm accessing both of the organizations using generated API by composer-rest-server . According to my understanding, Hyperledger Fabric keeps its states inside couchdb and keeping its ledger in every organizations thus providing integrity. The problem is let's say, when I try to change some sort of data directly in couchdb using cURL method on org2 , it shows lack of data integrity. for example : This Data "_id":"

How to ensure data integrity in Hyperledger Fabric when someone intentionally changes data in couchdb directly

☆樱花仙子☆ 提交于 2021-01-07 07:36:21
问题 I'm currently having 2 organizations inside my Hyperledger Fabric, and I'm accessing both of the organizations using generated API by composer-rest-server . According to my understanding, Hyperledger Fabric keeps its states inside couchdb and keeping its ledger in every organizations thus providing integrity. The problem is let's say, when I try to change some sort of data directly in couchdb using cURL method on org2 , it shows lack of data integrity. for example : This Data "_id":"

How to ensure data integrity in Hyperledger Fabric when someone intentionally changes data in couchdb directly

我怕爱的太早我们不能终老 提交于 2021-01-07 07:34:12
问题 I'm currently having 2 organizations inside my Hyperledger Fabric, and I'm accessing both of the organizations using generated API by composer-rest-server . According to my understanding, Hyperledger Fabric keeps its states inside couchdb and keeping its ledger in every organizations thus providing integrity. The problem is let's say, when I try to change some sort of data directly in couchdb using cURL method on org2 , it shows lack of data integrity. for example : This Data "_id":"

Hyperledger Fabric - Update a channel config by adding a new Org

◇◆丶佛笑我妖孽 提交于 2021-01-07 02:59:02
问题 I am trying to add a new Org to an existing Hyperledger fabric network. The initial network is created by the byfn.sh script that stands up an Orderer and Org1 & Org2. I have followed this example on Medium.com to create the update protobuf file. Everything that requires configtxgen, cryptogen and configtxlator is done as per this example. However, when it comes to executing the command peer channel signconfigtx -f org3_update_in_envelope.pb , I would like to do that using the Fabric Node SDK

Hyperledger fabric couchdb persistent

风格不统一 提交于 2021-01-05 12:24:41
问题 background: I am developing Hyperledger Fabric Network(v1.1) and are using couchdb. For continuing operation. It is necessary to persist data go each component(peer, orderer etc..). Issue: I don't know what I should persist couchdb's data for continuing operation in production environment. Question: (1)Should I persist these data in the below? And, if there is insufficient, please tell me that what I should persist data. /opt/couchdb/data /opt/couchdb/etc (2)If I don't persist these couchdb's

Hyperledger fabric couchdb persistent

断了今生、忘了曾经 提交于 2021-01-05 12:24:40
问题 background: I am developing Hyperledger Fabric Network(v1.1) and are using couchdb. For continuing operation. It is necessary to persist data go each component(peer, orderer etc..). Issue: I don't know what I should persist couchdb's data for continuing operation in production environment. Question: (1)Should I persist these data in the below? And, if there is insufficient, please tell me that what I should persist data. /opt/couchdb/data /opt/couchdb/etc (2)If I don't persist these couchdb's

Hyperledger fabric couchdb persistent

妖精的绣舞 提交于 2021-01-05 12:21:37
问题 background: I am developing Hyperledger Fabric Network(v1.1) and are using couchdb. For continuing operation. It is necessary to persist data go each component(peer, orderer etc..). Issue: I don't know what I should persist couchdb's data for continuing operation in production environment. Question: (1)Should I persist these data in the below? And, if there is insufficient, please tell me that what I should persist data. /opt/couchdb/data /opt/couchdb/etc (2)If I don't persist these couchdb's

What happens when certificates got renewed in Hyperledger Fabric?

偶尔善良 提交于 2020-12-29 07:49:26
问题 I'm adopting the Hyperledger Fabric to build applications for my business. Since permissioned blockchains like Fabric rely heavily on the PKI for identity management, and the fact that every transaction on the network requires signatures from participating components along way the transaction flow and transactions with those signatures finally got immutably persisted in the ledger. I wonder what happens if participating components would have to renew their certificates? For example, the