AAMVA VIZ Barcode Comparison Verifier
Defined in framework ScanditIdCapture
- SDCComparisonCheckResult
Added in version 6.11.0
The result of a comparison done by SDCAAMVAVizBarcodeComparisonVerifier of a single piece of data from an AAMVA-compliant personal identification document.
- SDCComparisonCheckResultPassed
Added in version 6.11.0
The compared data matches. In some instances the check may permit minor data divergence, to compensate, for example, for a single character misread by OCR.
- SDCComparisonCheckResultFailed
Added in version 6.11.0
Some suspicious differences detected. This doesn’t automatically mean that the document is fraudulent, but such document should be inspected more carefully.
- SDCComparisonCheckResultSkipped
Added in version 6.11.0
The data necessary to perform the check is missing and thus it is skipped.
- SDCComparisonCheck
@protocol SDCComparisonCheck <NSObject>
Added in version 6.11.0
A comparison done by SDCAAMVAVizBarcodeComparisonVerifier of a single piece of data from an AAMVA-compliant personal identification document.
- checkResult
@property (nonatomic, readonly) SDCComparisonCheckResult checkResult
Added in version 6.11.0
Whether any suspicious divergence in data is detected.
- SDCStringComparisonCheck
@interface SDCStringComparisonCheck : NSObject <SDCComparisonCheck>
Added in version 6.11.0
The result of the comparison of a string field performed by SDCAAMVAVizBarcodeComparisonVerifier. Check SDCComparisonCheck for more informations.
- SDCDateComparisonCheck
@interface SDCDateComparisonCheck : NSObject <SDCComparisonCheck>
Added in version 6.11.0
The result of the comparison of a SDCDateResult field performed by SDCAAMVAVizBarcodeComparisonVerifier. Check SDCComparisonCheck for more informations.
- aamvaBarcodeValue
@property (nonatomic, nullable, readonly) SDCDateResult *aamvaBarcodeValue
Added in version 6.11.0
The SDCDateResult field extracted from a barcode present at the back side of an AAMVA-compliant personal identification document.
- vizValue
@property (nonatomic, nullable, readonly) SDCDateResult *vizValue
Added in version 6.11.0
The SDCDateResult field extracted from a human-readable front side of an AAMVA-compliant personal identification document.
- SDCAAMVAVizBarcodeComparisonResult
@interface SDCAAMVAVizBarcodeComparisonResult : NSObject
Added in version 6.11.0
The result of an AAMVA-compliant personal identification document verification conducted by SDCAAMVAVizBarcodeComparisonVerifier.
- checksPassed
@property (nonatomic, readonly)
BOOLchecksPassedAdded in version 6.11.0
Whether all the checks conducted by the verifier passed. Only the check that were run count, so YES is returned even if some of the checks were skipped.
- issuingCountryISOMatch
@property (nonatomic, readonly) SDCStringComparisonCheck *issuingCountryISOMatch
Added in version 6.11.0
Whether the issuing countries extracted from both sources of the data are the same.
- issuingJurisdictionISOMatch
@property (nonatomic, readonly) SDCStringComparisonCheck *issuingJurisdictionISOMatch
Added in version 6.11.0
Whether the issuing jurisdictions (for example: an issuing state, territory or federal district for USA, or an issuing province or territory for Canada) extracted from both sources of the data are the same.
- documentNumbersMatch
@property (nonatomic, readonly) SDCStringComparisonCheck *documentNumbersMatch
Added in version 6.11.0
Whether the document numbers extracted from both sources of the data match. This check may permit minor data divergence, to compensate, for example, for a single character misread by OCR.
- fullNamesMatch
@property (nonatomic, readonly) SDCStringComparisonCheck *fullNamesMatch
Added in version 6.11.0
Whether the holder’s full names extracted from both sources of the data match. This check may permit minor data divergence, to compensate, for example, for a single character misread by OCR.
- datesOfBirthMatch
@property (nonatomic, readonly) SDCDateComparisonCheck *datesOfBirthMatch
Added in version 6.11.0
Whether the holder’s dates of birth extracted from both sources of the data are the same.
- datesOfExpirationMatch
@property (nonatomic, readonly) SDCDateComparisonCheck *datesOfExpirationMatch
Added in version 6.11.0
Whether the document’s dates of expiry extracted from both sources of the data are the same.
- datesOfIssueMatch
@property (nonatomic, readonly) SDCDateComparisonCheck *datesOfIssueMatch
Added in version 6.11.0
Whether the document’s dates of issue extracted from both sources of the data are the same.
- SDCAAMVAVizBarcodeComparisonVerifier
@interface SDCAAMVAVizBarcodeComparisonVerifier : NSObject
Added in version 6.11.0
Verifies an AAMVA-compliant personal identification document by comparing the human-readable data from its front side with the data encoded in the barcode, and signals any suspicious differences.
The verifier may permit minor data divergence, to compensate, for example, for a single character misread by OCR. Thus, while it automatically detects many fraudulent documents, a failed check does not necessary mean that the document is invalid. It is up to the user to subject such documents to additional scrutiny.
The verification may be conducted for AAMVA-compliant personal identification documents in the front & back scanning mode. Create the verifier and initialize SDCIdCapture with the following settings:
DataCaptureContext dataCaptureContext = DataCaptureContext(licenseKey: "-- ENTER YOUR SCANDIT LICENSE KEY HERE --") AAMVAVizBarcodeComparisonVerifier verifier = AAMVAVizBarcodeComparisonVerifier() IdCaptureSettings settings = IdCaptureSettings() settings.supportedDocuments = [ .dlVIZ ] settings.supportedSides = .frontAndBack IdCapture idCapture = IdCapture(context: dataCaptureContext, settings: idCaptureSettings)
Then proceed to capture the front side & the back side of a document as usual. After you capture the back side and receive the combined result for both sides, you may run the verifier as follows:
func idCapture(_ idCapture: IdCapture, didCaptureIn session: IdCaptureSession, frameData: FrameData) { guard let capturedId = session.newlyCapturedId, let vizResult = capturedId.vizResult, vizResult.capturedSides == .frontAndBack else { return } let result = verifier.verify(capturedId) if result.checksPassed { // Nothing suspicious was detected. } else { // You may inspect the results of individual checks, if you wish: if (result.datesOfBirthMatch.checkResult == .failed) { // The holder’s date of birth from the front side does not match the one encoded in the barcode. } } }
The return value allows you to query both the overall result of the verification and the results of individual checks. See SDCAAMVAVizBarcodeComparisonResult for details.
- + verifier
+ (nonnull
instancetype)verifierAdded in version 6.11.0
Creates a new instance of this verifier.
- - verify:
- (nonnull SDCAAMVAVizBarcodeComparisonResult *)verify:(SDCCapturedId *)capturedId
Added in version 6.11.0
Compares the human-readable data from the front side of the document with the data encoded in the barcode, and signals any suspicious differences.