DeviceFingerPrintService

The DeviceFingerPrintService is a device SPI that enables the SDK to request device fingerprints from the MPP. The service requires SHA-256 encryption.

Note: If this SPI is not implemented, or if the returned device fingerprint does not use SHA-256 encryption, the SDK will return a PARAMS_ERROR during card activation.

Method signature

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public interface DeviceFingerPrintService {
    String getDeviceFingerPrint();
}

Request parameters

Method	Item	Type	Description	Required
getDeviceFingerPrint()	N/A	Function	Obtains the device fingerprint.	Yes

Response parameters

Method

Item

Type

Description

Required

getDeviceFingerPrint

result

String

The device fingerprint.

Note: The returned value must be a 64-character hexadecimal SHA-256 digest. If the returned value is empty or has an incorrect length, activatePayment fails with error code 10011 (INPUT_PARAMS) without making any network call.

Yes

Sample

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class DeviceIdService(val utdid: String): DeviceFingerPrintService {
    override fun getDeviceFingerPrint(): String? {
        return DeviceHelper.getDeviceFingerprint(utdid)
    }
}