Systems and methods for authentication using digital signature with biometrics

An encryption/decryption system for user authentication and document authentication using face biometrics, the system comprising:

• a processor;
• and
• a memory storing machine-executable instructions which when executed by the processor configure the processor to:
• receive one or more challenge images for authentication and one or more digital assets to be digitally signed upon successful authentication of the one or more challenge images;
• generate a plurality of challenge facial signature values by applying face detection operations to the one or more challenge images to identify one or more candidate face regions;
• create a challenge profile by linking together the plurality of challenge facial signature values;
• authenticate the challenge profile by applying face recognition operations to compare the linked challenge facial signature values to stored or pre-registered profile facial signature values and compute a similarity metric within a similarity threshold, wherein the processor is configured to:
• receive an image of an identification document;
• generate a document facial signature by applying face detection operations to the image of the identification document to identify one or more document face regions;
• compare the document facial signature to one or more of the plurality of challenge facial signature values;
• and
• determine a likeness score between the document facial signature and the one or more of the plurality of challenge facial signature values;
• wherein the challenge profile is authenticated when the likeness score is within a defined range or threshold;
• retrieve one or more encryption keys when the challenge profile successfully authenticates, the one or more encryption keys being linked to the stored or pre-registered profile facial signature values;
• digitally sign a signing package of at least one of:
• a digital image, the one or more challenge images, and the one or more digital assets using the retrieved one or more encryption keys;
• compile a package of digitally signed assets containing the signing package and the one or more digital assets or a hash of the one or more digital assets;
• digitally sign the package of digitally signed assets using the retrieved one or more encryption keys;
• transmit the package of digitally signed assets;
• and
• store at least one of the one or more challenge images, the challenge profile, the retrieved one or more encryption keys, the digital image, the one or more digital assets or the digitally signed package of digitally signed assets in at least one secure storage.