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In Hyperledger Fabric 1.3, how can I ensure that all organizations have signed the chaincode to install ?

I could sign the code, but it seems that no component verifies the signature.

Details are as below:

Preconditions

  • Fabric 1.3
  • I have two orgs, org1 and org2.
  • org1 wants to verify that org2 has signed the code, and vice versa, for non-repudiation (undeniability).
  • I know that we can install chaincode without signatures by peer chaincode install.

Expected Behaviour

In the below Commands, I expected that:

  • Option A must succeed, because the chaincode includes signatures from both orgs.
  • Option B must produce some kind of error or warning, because the chaincode lacks a signature from org2.

Actual Behaviour

  • Not only Option A but B also succeeds with no errors, which is against the expectation.

Commands

org1> peer chaincode package -n mycc -v 0 example02/cmd -s -S \
          -i "AND('Org1MSP.admin')" cc.out

Option A:
   org2> peer chaincode signpackage cc.out signedcc.out
   org1> peer chaincode install -n mycc -v 0 signedcc.out
   org2> peer chaincode install -n mycc -v 0 signedcc.out
Option B:
   org1> peer chaincode install -n mycc -v 0 cc.out
   org2> peer chaincode install -n mycc -v 0 cc.out

org1> peer chaincode instantiate -o orderer:7050 -C mychannel \
          -n mycc -v 0 -c '(snip)' -P "AND ('Org1MSP.peer','Org2MSP.peer')"

# Then Org2 makes a query.

The flow

The flow

1 Answer

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by (14.5k points)

As of now, there is currently no enforcement for signed chaincode packages within the Hyperledger Fabric. However, in version 2.0 there is a new lifecycle for chaincode which provides the functionality you require.

For versions 1.3 and 1.4, it is up to the organization installing the chaincode to check if they have enough signatures for the chaincode package prior to installing.

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