Technology

Concealogram is a unique-generated seal embedded and hidden inside any printed image that protects a document. The image with the embedded seal called Concealogram is printed on the document. The Concealogram contains valuable information on the document it protects. If the document is manipulated or tapped in any way, the seal won’t match the document's data and the fraud is detected.
The seal can be any image without any limitations: a passport/ID image, a company logo, a background image or even a blank white image (!).

Encryption and creating the Concealogram seal at issuing point
  • Encrypted the hidden information into the authentic document using symmetrical key
  • Printing the protected document

Deciphering at verification point
  • The printed document is scanned
  • The Concealogram is decrypted using the symmetric key and the hidden information is revealed
  • Verification of the authentic document’s authenticity by comparing the hidden information with visible data.