Zwipe Access doesn’t store the full user's fingerprint but only an abstract representation of the characteristic features extracted from the captured fingerprint images. This is called a biometric template.
The registration of the cardholder’s fingerprint(s) is called enrollment.
During the enrollment, the fingerprint sensor passes the captured fingerprint images to the biometric secure element (SE) using a secure channel. The biometric secure element then extracts and securely stores the biometric reference data. After this process is completed, all the captured images are deleted and only the extracted biometric reference template is stored in the Zwipe Access card secure memory.
Likewise, during later verifications, a freshly captured image is passed in over a secure channel from the fingerprint sensor to the secure element. The secure element then extracts another fingerprint template (called the probe template) and compares it with the reference template. An accredited 3rd party laboratory has reviewed this architecture and performed tests per EMVCo, Visa, and Mastercard requirements.