Parameterized Policies

Some policies may require a parameter or argument for execution. The parameter is indicated in the policy list output, together with the expected data type.

Using A Parameterized Policy

Please refer to the SSI-Kit setup section to exectute the command successfully. Let's verify a credential using the parameterless SignaturePolicy and ChallengePolicy which taks a paramter.

ssikit vc verify \
-p SignaturePolicy \
-p ChallengePolicy='{"challenges": ["362df5ec-37ab-46a7-aa71-767d8f277b69"]}' \


  • -p, --policy: Verification policy. Can be specified multiple times. By default, SignaturePolicy is used. To specify a policy argument (if required), use the format PolicyName='{"myParam": "myValue", ...}', to specify the JSON object directly, or PolicyName=path/to/arg.json, to read the argument from a JSON file.

The Challange Policy

It checks that the challenge of the credential is one of the challenges given in the ChallengePolicyArg argument.

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