Theidemixgentool is used to create configuration files for the Identity Mixer based MSP
(Membership
Service
Provider)
in
Hyperledger
Fabric.When
configuring
membership,
theidemixgentool creates three directories:/ca/,/msp/, and/user/1. The/ca/directory contains
the issuer secret key, issuer public key, and revocation key, which should only be present for a
Certificate Authority (CA). The/msp/directory contains the issuer public key and revocation public
key, which are required to set up an MSP that verifies Identity Mixer signatures.The/user/directory
specifies a default signer configuration1. Therefore, the correct answer is the user directory, which is
created alongside the ca and msp directories by theidemixgentool.
