公开(公告)号：WO2022016278A1

公开(公告)日：2022-01-27

申请号：PCT/CA2021/051014

申请日：2021-07-21

Applicant: ROYAL BANK OF CANADA

Inventor： SALTER, Margaret Inez ,  VINTILA, Iustina-Miruna ,  POURTABATABAIE, Arya ,  ORTIZ, Edison U. ,  JAFARZADEH, Sara Zafar ,  HASHEMI AMROABADI, Sayedmasoud ,  SRINIVASA, Christopher Côté

IPC: G06F21/60 ,  G06F21/32 ,  G06K9/00 ,  G06Q20/40 ,  G07F19/00

Abstract: An approach for increasing security of biometric templates is described. An improved system is adapted to split a full set of features or representations of a trained model into a first partial template and a second partial template, the second partial template being stored on a secure enclave accessible only through zero-knowledge proof based interfaces. During verification using the template, a new full set of features is received for comparison, and a model is loaded based on the available portions of the model. Comparison utilizing the second partial template requires the computation of zero-knowledge proofs as direct access to the underlying second partial template is prohibited by the secure enclave.