| 2D Barcode Content |
Checks the contents of the (two-dimensional) 2D barcode on the document |
A 2D barcode was: read but could not be correctly decoded, or. incorrectly encoded (either inadvertently due to a manufacturing problem or intentionally), or. a new barcode format that is currently not supported by the software version. |
| 2D Barcode Read |
Verifies that the (two-dimensional**) 2D barcode** on the document was read successfully |
A 2D barcode could not be read successfully because it is either: dirty or in poor condition. covered by a foreign material (such as a sticker), or. invalid or a poor quality replication of an authentic barcode. |
| Active Authentication |
Verifies that the contactless chip in the document is genuine and that the tamper- resistant key in the contactless chip was not substituted |
Visually inspect the back cover of the document for tampering. The document may have been prematurely removed from the reader, or the contactless chip in the document is either: not genuine, or. the digital signature verification of a tamper-resistant key in the contactless chip fails. |
| Application Date Crosscheck |
Compares the application date to information contained in one or more visible or machine-readable application date fields |
The application date on one or more data sources doesn’t match. |
| Barcode Encoding |
Verifies that the barcode encoding is consistent with the expected encoding for the type |
The barcode encoding doesn’t match the expected encoding format because the barcode: • is incorrectly encoded, either inadvertently due to a manufacturing problem or design change, or • has been altered or replaced. |
| Basic Access Control |
Verifies that secure communication with the contactless chip in the document was established |
Secure communication between the contactless chip and the inspection system was not established. |
| Birth Date Check Digit |
Verifies that the visible birth date is the same as the check digit from the birth date check digit in the MRZ |
Any misread characters in the MRZ can cause a failure of the birth date check digit. |
| Birth Date Crosscheck |
Checks the birth date field against information contained in one or more visible or machine-. readable birth date fields |
The birth date in one or more visible or machine-readable data sources doesn’t match. |
| Birth Date Valid |
Verifies that the birth date could be read, is n the expected format, and occurs on or before the current date and not outside a reasonable range |
The birth date is invalid because it is either not in the expected format, or is a date that is the same or later than the current date. |
| Chip Authentication |
Verifies that the contactless chip in the document is authentic |
The Certificate Chain used to sign the chip data is invalid. |
| Chip Certificate Chain Validity Check |
Verifies that the Chip Certificate Chain used to sign the chip data is valid |
The Chip Certificate Chain used to sign the chip data is invalid and could indicate an attempt to digitally alter or partially replace the chip data. |
| Composite Check Digit |
Performs a checksum validation on the MRZ |
Any misread characters in the MRZ can cause a failure of the Composite Check Digit test. |
| Contactless Chip Content |
Checks the contents of the contactless chip in the document |
A contactless chip was detected and read but can’t be correctly decoded. |
| Contactless Chip Presence |
Checks for the presence of a contactless chip in the document |
A contactless chip was not detected. |
| Contactless Chip Read |
Verifies that the contactless chip in the document was read successfully |
A contactless chip was detected but couldn’t be read successfully. |
| Control Number Crosscheck |
Compares the control number to information contained in one or more visible or machine- readable control number fields |
The information contained in one or more control number fields doesn’t match. The control number may have been misread due to dirt or wear. Confirm that the data from all visible sources match and are free of obstructions. |
| COM/SOD Crosscheck |
Checks that the same datagroups exist in the COM and SOD fields |
The same datagroups do not exist in the COM and SOD fields. |
| Data group (DG) Integrity Check |
Verifies that the chip data group is valid |
The chip data is either not authentic or couldn’t be read correctly. |
| Document Classification |
Verifies that the document type is supported and can be fully authenticated |
The document isn’t recognized as a supported document type or the document type can’t be fully authenticated. The document should be examined manually. The document may be either: • a fraudulent (counterfeit) document a valid document that is significantly worn or damaged, or • the document is a new or different type that is not yet supported by GBG Document Library. |
| Document Crosscheck Aggregation |
Checks the document against the information contained in one or more visible or machine- readable document fields |
The document on one or more data sources doesn’t match. The machine-readable data may be from a totally different person from what is represented on the front of the card. This may indicate: • a tampering attempt to the visible data regions • a fraudulent (counterfeit) document, or • an accidental scanning of the front and back from two different documents. |
| Document Discriminator (DD) Number Crosscheck |
The DD number is present in multiple locations on this document (e.g., visual, 2D barcode, magnetic stripe, contactless smart card). This test compares this field between two or more of these sources to verify that they match. |
The DD number field on the document may have been misread due to dirt or wear. Confirm that the data from all visible sources match and are free of obstructions. |
| Document Expired |
Verifies that the document expiration date doesn’t occur before the current date |
The document has expired. |
| Document Number Check Digit |
Compares the machine-readable document number check digit to the calculated check digit from the visible document number |
Any misread characters in the MRZ can cause a failure of the document number check digit. |
| Document Number Crosscheck |
Checks the document number against the information contained in one or more visible or machine-readable document number fields |
The document number on two or more data sources doesn’t match. The document number may have been misread due to dirt or wear. Confirm that the data from all visible sources match and are free of obstructions. |
| Document Orientation |
Checks that the document was presented in the correct orientation (horizontal vs. vertical) |
The document is presented in the wrong orientation (vertically vs. horizontally) which can falsely indicate the absence of a magnetic stripe on some documents. |
| Document Tampering Detection |
Examines the image for any visible indications of tampering, for example, a photo that has been altered or replaced. |
If this test fails, request a new image if possible to repeat the test. |
| DSC Certificate Valid |
Verifies that time is within the Document Signer Certificate (DSC) validity period |
The issuer has indicated that the type can no longer be considered secure on the current date. |
| Expiration Date Check Digit |
Checks the expiration date against information contained in the calculated expiration date check digit from the machine-readable zone (MRZ) |
The visible expiration date doesn’t match the expiration date check digit on the MRZ. |
| Expiration Date Crosscheck |
Compares the visible expiration date field to one or more machine-readable expiration date fields |
The visible expiration date on two or more of these sources doesn’t match. |
| Expiration Date Valid |
Verifies that the document expiration date is valid, in the expected format, and occurs after the issue and/or birth dates |
The document expiration date is invalid because it either: • is not in the expected format, • occurs before the issue date, or • occurs before the birth date. |
| Full Name Crosscheck |
Checks the full name against the information contained in one or more visible or machine- readable full name fields |
The full name field on two or more of these sources doesn’t match. The full name may have been misread due to dirt or wear. Confirm that the data from all visible sources match and are free of obstructions. |
| Given Name Crosscheck |
Checks the given name against information contained in one or more visible or machine- readable given name fields |
The given name on two or more of these sources doesn’t match. |
| Image Tampering Check |
Examines a document image for evidence of tampering or digital manipulation |
The document image shows evidence of tampering or digital manipulation. |
| Issue Date Crosscheck |
Checks the issue date against the information contained in one or more visible or machine- readable issue date fields |
The issue date on two or more of these sources doesn’t. match. |
| Issue Date Valid |
Verifies that the document issue date is valid and in the expected format |
The issue date is invalid because it either: • is not in the expected format, • contains a date that occurs in the future, or • occurs after the expiration date. |
| Issuing State Valid |
Verifies that the issuing state is valid by checking it against the list of standard state codes |
The issuing state is invalid because it was either: • misread, or • doesn’t appear on the list of standard state codes. |
| Laser Perforation |
Verifies the presence of a laser perforation feature on the document |
No laser perforation was detected. |
| Layout Valid |
Verifies that the layout (relative positions of features on the document are within the normal area) of the document is correct |
The layout is invalid because either the document was: • moving or slipped during the capture, or • excessively worn or damaged. |
| Magstripe Content |
Checks the contents of the magnetic stripe (magstripe) on the document |
A magstripe was detected and read but can’t be correctly decoded because the magstripe was either: • dirty or in poor condition, or • the contents of the magstripe were incorrectly encoded (either inadvertently due to a manufacturing problem or intentionally). |
| Magstripe Presence |
Checks for the presence of a magnetic stripe (magstripe) on the document |
No magstripe was detected. |
| Magstripe Read |
Verifies that the magnetic stripe (magstripe) on the document was read successfully |
A magstripe was detected but could not be read successfully because it is either: • dirty or in poor condition, or • covered by a foreign material (such as a sticker). |
| MRZ Crosscheck |
Compares the machine-readable zone (MRZ) printed on the document to the MRZ on the contactless smart card |
The MRZ printed on the document does not match the MRZ on the contactless smart card. |
| Nationality Code Crosscheck |
Checks the nationality code field to one or more visible or machine-readable nationality code fields |
The nationality code on two or more data sources doesn’t match. |
| Nationality Valid |
Verifies that the nationality code is legible and that it is on the list of standard nationality codes |
The nationality code is invalid because it either: • may have been misread, or • doesn’t appear on the list of standard nationality codes. |
| Near-Infrared Pattern |
Verifies that a security feature, visible in the near-infrared spectrum, is present and in an expected location on the document |
The near-infrared pattern is either not present or not in the expected location on the document. The document may have been: • moved during the capture, or • excessively worn or damaged. |
| Near-Infrared Response |
Verifies that text, photos, and other features on a region of the document respond as expected when viewed under near-infrared light to determine whether: • the photo has not been substituted • the document is authentic (not counterfeit), or • the document has not been tampered with or modified |
The document does not respond correctly when viewed under near-infrared light. If the region of interest is within the photo area, confirm that the photo has not been tampered with or substituted. If the region of interest is over data, confirm that the data has not been tampered with. The document may have been: • moved during the capture, or • excessively worn or damaged. |
| Optically Variable Ink Pattern |
Verifies the presence of an optically variable ink pattern on the document. Note The pattern should vary in color (but not shape) as you tilt the document. |
No optically variable ink pattern was detected on the document. The document may have been: • moved during the capture, or • excessively worn or damaged. |
| Optically Variable Ink Response |
Verifies the response of an optically variable ink pattern on the document |
The document may have been: • removed from the reader authenticator before the image could be captured • moved during the capture, or • excessively worn or damaged. |
| Overlay Pattern |
Checks the document to verify the presence of a pattern on the document overlay and verifies the integrity of the document overlay that seals the document to verify that: • the photo has not been substituted • the document is authentic (not counterfeit), or • the document has not been tampered with or modified |
The document may have been: • removed from the reader authenticator before the image could be captured • moved during the capture, or • excessively worn or damaged. |
| Overlay Response |
Verifies that a region of the document overlay or laminate material responds as expected |
A region of the document overlay or laminate material did not respond as expected. The document may have been: • removed from the reader authenticator before the image could be captured • moved during the capture, or • excessively worn or damaged. |
| Passive Authentication |
Verifies that the contactless chip in the document is: • authentic (not counterfeit) • has not been tampered with or modified |
The digital signatures of the data in the contactless chip are either invalid or could not be validated. |
| Personal Number Check Digit |
Validates the visible personal number check digit by comparing it to a calculated check digit from the visible personal number element |
The personal number check digit doesn’t match the visible personal number. |
| Personal Number Crosscheck |
Checks the personal number against the information contained in the visible or machine-readable personal number fields |
The machine-readable personal number doesn’t match the visible personal number. |
| Photo Printing |
Verifies that a detailed photo printing technique was used a photo and can be used to verify that: • the photo has not been substituted • the document is authentic (not counterfeit), or • the document has not been tampered with or modified |
This test may fail on an authentic document if the document is: • out of focus due to warping • moved during the capture, or is • excessively worn or damaged. |
| Physical Document Presence |
Examines a document image for evidence that it could be a picture of something other than an original document, such as a computer screen |
This test may be: • Failed if the image was not produced from an original document, on the uncropped image (if available), especially at the edges, or • Skipped if the image is not a minimum of 500 x 500 pixels in size. |
| Series Date Valid |
Verifies that the referenced series date (such as issue date or expiration date) on the document occurs within the published or. known expected range for the document series |
The referenced series date on the document doesn’t occur within the published or known expected range for the document series. |
| Series Expired |
Verifies whether the document is still in circulation and that not all documents of this type have expired |
The test result Attention signifies that the document is no longer in circulation. |
| Sex Crosscheck |
Checks the sex against information contained in the visible or machine-readable sex fields |
The sex field on two or more of these sources don’t match. |
| SOD signature check |
Verifies that the SOD signature is valid |
The SOD signature is invalid. |
| Substrate Printing |
Verifies that a detailed printing technique, which can be used to detect a counterfeit document, was used when the blank document was created |
The document may have been: • moved during the capture, or is • excessively worn or damaged. |
| Supplemental Access Control |
Verifies that secure communication with the contactless chip in the document was established |
Secure messaging with the contactless chip could not be established. |
| Surname Crosscheck |
Checks the surname against the information contained in the visible and machine-readable surname field |
The surname field on two or more of these sources doesn’t match. |
| Terminal Authentication |
Verifies whether the system can read sensitive data from the contactless chip in the document |
• Secure messaging with the contactless chip could not be established, or • the request to digitally sign an external request was not completed with a valid inspection system key. |
| Ultraviolet Material Response |
Confirms that the ultraviolet response for the entire document is correct for that type of document and verifies that the material of the document responds as expected when viewed under ultraviolet light • If the region of interest is within the photo area, confirms that the photo has not been tampered with or substituted • If the region of interest is over data, confirms that the data has not been tampered with or modified. Note Certain types of documents should not respond under ultraviolet light and should only appear as a dark image. Conversely, a document that has been tampered with or a counterfeit document may appear bright blue. |
The document could be: • excessively worn or damaged, or • tampered with or modified. |
| Ultraviolet Pattern |
Verifies that a security feature, visible in the ultraviolet spectrum, is present and in an expected location on the document |
The ultraviolet pattern was either not detected or not in the expected location on the document. The feature may have been omitted from the document due to a manufacturing or printing error. The document may have been: • removed from the reader before the UV image could be captured • moved during the capture, or • excessively worn or been subject to treatment that may have worn off or removed the UV ink. |
| Ultraviolet Response |
Checks that a region of the document responds as expected when viewed under ultraviolet light. Confirms that the area of the test has not been tampered with, and that it was made using the correct material. Note The material should not respond with a bright blue color. |
The document may contain: • a sticker placed on the tested part of the document, or • a responsive stain from whitening agents (such as laundry detergent or glue). |
| Visible Color Response |
Verifies that the material of the document responds as expected when viewed under white light. • If the region of interest is within the photo area, confirms that the photo has not been tampered with or substituted • If the region of interest is over data, confirms that the data has not been tampered with |
The document may have been: • moved during the capture • excessively worn or damaged • captured in poor lighting conditions, or • captured with a device that was not calibrated correctly. |
| Visible Pattern |
Verifies that a security feature in the visible spectrum is present and in the expected location on the document |
The visible pattern was either not detected or not in the expected location on the document. The document may have been: • moved during the capture, or • is excessively worn or damaged. |
| Visible Photo Characteristics |
Verifies that the general appearance of a photo on the document is as expected. This test can be used to verify that the photo has not been obscured or replaced in any way. |
The document contains a photo that might have been altered or replaced. Make sure that the photo area is not obscured and that the photo has not been altered or replaced. |
