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# BiosealLicense.checkLicenseBufferWithCard Method

Module: BiosealLicense

## Definition

Checks the license using a buffer containing the license data and a card-based verification process.

It outputs a challenge response for further verification.

    static Uint8List checkLicenseBufferWithCard(Uint8List? licenseData)

Parameters

`licenseData` Uint8List
in A buffer containing the license file data.

Returns

`Uint8List`
An array to hold the challenge response generated by the host.
This 16-byte array is used in the license verification process.

Exceptions

BiosealException
An error has occurred during Bioseal Library execution.