Microsoft PhotoDNA

Photo DNA is an innovative technology, developed by Microsoft, that compiles a digital signature of images (or a “fingerprint”), which can be matched against a database of known child-pornography images, thus significantly reducing the time law enforcement officers spend viewing these images to determine if the child victims have already been identified or are currently at-risk.

Needless to say, child pornography is a serious issue across the globe.  Many countries have strict laws against child pornography, which oftentimes includes severe punishments. Child pornography exploits children.  In some cases these images are produced during an actual sexual assault of a child, in other cases the images are created through a simulated encounter. Either way, this is illegal.  Child pornography laws state that even simulated images are considered to be child sexual abuse.

How to Apply:

You can apply by contacting if you are  Law  Enforcement and/or law enforcement tool providers. After approval and licensing agreement you can expect a set of libraries (DLL’s)to help you deploy the technology.

If you are law enforcement just looking for PhotoDna hashes to be used in image / video and forensic tools you can apply for Project VIC Participation by emailing