x509: ECDSA verification failure - blockchain

Question

I have to install a bna file on fabric . I am following the link https://hyperledger.github.io/composer/tutorials/deploy-to-fabric-single-org.html . However when I run the command: composer runtime install -c PeerAdmin#fabric-network -n tutorial-network
I am getting the error :
Error: Error trying install composer runtime. Error: No valid
responses from any peers.
Response from attempted peer comms was an error:
Error: Failed to deserialize creator identity, err The supplied
identity is not valid, Verify() returned x509: certificate signed by
unknown authority (possibly because of "x509: ECDSA verification
failure" while trying to verify candidate authority certificate
"ca.org1.example.com").
Any help on this please

Answer 1

sounds like you have made an error in following the tutorial (which definitely works). Are you sure the MSP id (Org1MSP) for the peer has been setup correctly ? Have you checked that the peer has successfully joined the channel (when the Fabric was started)? Have you done a docker ps to see your Fabric docker containers are running?) Assuming you followed the steps correct and using an identity you have obtained from a fabric-ca server (per the tutorial), have you checked the fabric-ca server is running correctly (docker logs ? Also, is it possible you're restarted your Fabric docker environment at one point and now your old key information is invalid?
eg
{
"name": "fabric-network",
"type": "hlfv1",
"mspID": "Org1MSP",
"peers": [
{
"requestURL": "grpc://localhost:7051",
"eventURL": "grpc://localhost:7053"
}
],
"ca": {
"url": "http://localhost:7054",
"name": "ca.org1.example.com"
},
"orderers": [
{
"url" : "grpc://localhost:7050"
}
],
"channel": "composerchannel",
"timeout": 300
}
then re-create the card with the correct key/signcert info
composer card create -p connection.json -u PeerAdmin -c Admin#org1.example.com-cert.pem -k xxxxx_sk -r PeerAdmin -r ChannelAdmin
where the .pem file comes from signcerts directory and xxxxx is the generated value for the key filename in keystore.