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Tokengen

tokengen is an utility for generating Fabric Token-SDK material. It is provided as a means of preconfiguring public parameters, token chaincode, and so. It would normally not be used in the operation of a production network.

Syntax

The tokengen command has five subcommands, as follows:

  • artifacts
  • certifier-keygen
  • gen
  • help
  • version

tokengen artifacts

This command is used to centrally generate key material and configuration files. It takes in input a topology file, in yaml format, that describes the topologies of the networks involved. An example can be found here. Topology files can be edited directly or they can be generated programmatically as shown here.

Read topology from file and generates artifacts.

Usage:
tokengen artifacts [flags]

Flags:
-h, --help              help for artifacts
-o, --output string     output folder (default "./testdata")
-p, --port int          host starting port (default 20000)
-t, --topology string   topology file in yaml format

tokengen certifier-keygen

Gen Token Certifier Key Pair.

Usage:
  tokengen certifier-keygen [flags]

Flags:
  -d, --driver string   driver (dlog) (default "dlog")
  -h, --help            help for certifier-keygen
  -o, --output string   output folder (default ".")
  -p, --pppath string   path to the public parameters file

tokengen gen

The tokengen gen command has two subcommands, as follows:

  • fatoken: generates the public parameters for the fabtoken driver
  • dlog: generates the public parameters for the dlog driver

tokengen gen fabtoken

Usage:
  tokengen gen fabtoken [flags]

Flags:
  -a, --auditors strings   list of auditor MSP directories containing the corresponding auditor certificate
      --cc                 generate chaincode package
  -h, --help               help for fabtoken
  -s, --issuers strings    list of issuer MSP directories containing the corresponding issuer certificate
  -o, --output string      output folder (default ".")

The public parameters are stored in the output folder with name fabtoken_pp.json.

tokengen gen dlog

Usage:
  tokengen gen dlog [flags]

Flags:
  -a, --auditors strings   list of auditor MSP directories containing the corresponding auditor certificate
  -b, --base int           base is used to define the maximum quantity a token can contain as Base^Exponent (default 100)
      --cc                 generate chaincode package
  -e, --exponent int       exponent is used to define the maximum quantity a token can contain as Base^Exponent (default 2)
  -h, --help               help for dlog
  -i, --idemix string      idemix msp dir
  -s, --issuers strings    list of issuer MSP directories containing the corresponding issuer certificate
  -o, --output string      output folder (default ".")

The public parameters are stored in the output folder with name zkatdlog_pp.json.

tokengen update dlog

This command takes an existing zkatdlog_pp.json and allows you to update the issuer and/or auditor certificates, while keeping the public parameters intact.

Usage:
  tokengen update dlog [flags]

Flags:
  -a, --auditors strings   list of auditor MSP directories containing the corresponding auditor certificate
  -h, --help               help for dlog
  -i, --input string       path of the public param file
  -s, --issuers strings    list of issuer MSP directories containing the corresponding issuer certificate
  -o, --output string      output folder (default ".")

tokengen pp

The tokengen pp command has the following subcommands:

  • print: Inspect public parameters

tokengen pp print

Usage:
  tokengen pp print [flags]

Flags:
  -h, --help           help for print
  -i, --input string   path of the public param file

tokengen help

Help provides help for any command in the application.
Simply type tokengen help [path to command] for full details.

Usage:
  tokengen help [command] [flags]

Flags:
  -h, --help   help for help

tokengen version

Print current version of tokengen.

Usage:
  tokengen version [flags]

Flags:
  -h, --help   help for version