Ekemp Tablet with CTK analysis

We have tested CTK with ekemp sbi tablet as well as mock-sbi and below are few findings.

Addendum:

• Rcapture Request Specification:

  • { "env": "Target environment", "purpose": "Auth or Registration", "specVersion": "Expected MDS spec version", "timeout": "Timeout for registration capture", "captureTime": "Time of capture request in ISO format", "transactionId": "Transaction Id for the current capture", "bio": [ { "type": "Type of the biometric data", "count": "Finger/Iris count, in case of face max, is set to 1", "bioSubType": ["Array of subtypes"], //Optional "exception": ["Finger or Iris to be excluded"], "requestedScore": "Expected quality score that should match to complete a successful capture", "deviceId": "Internal Id", "deviceSubId": "Specific device Id", "previousHash": "Hash of the previous block" } ], "customOpts": { //max of 50 key-value pairs. This is so that vendor-specific parameters can be sent if necessary. The values cannot be hardcoded and have to be configured by the apps server and should be modifiable upon need by the applications. Vendors are free to include additional parameters and fine-tuning parameters. None of these values should go undocumented by the vendor. No sensitive data should be available in the customOpts. } }

• Device Rcapture:

  • CTK seems to be currently accepting rcapture response with empty domainUri, but this parameter is not part of spec. Below is a part of response.

  • part of Response from real sbi (Synergy environment)

    "domainUri":"", "env":"Developer", "purpose":"Registration", "qualityScore":"30", "requestedScore":"40", "timestamp":"2023-12-11T09:28:34Z", "transactionId":"SBI1012-514"

    part of Response from mock sbi (dev environment:

  • "deviceCode": "b692b595-3523-face-99fc-bd76e35f190f", "deviceServiceVersion": "0.9.5", "bioType": "Face", "purpose": "Registration", "env": "Developer",

  • Domain URI isn’t part of rcapture spec, but an empty string is returned by real sbi and this passes the CTK test case

Full objects:

Dev Mock SBI

Synergy Ekemp SBI:

Additional Notes:

• Irrespective of the image (Face or any object, the tablet sends a constant quality score 90

• Fingerprint capture is not working as on Dec 12, 2023.

• The tablet draws too much power when fingerprint sensor is ON

• The tablet needs to be restarted to be able to connect to laptop with USB-C rendering debugging very difficult

• Wireless debugging is working now,

• Capture of fingerprint was working with a workaround (this was done just to testing purposes and could be a deviation from spec so not being included in codebase).