公开(公告)号：US12158973B1

公开(公告)日：2024-12-03

申请号：US17699548

申请日：2022-03-21

Applicant: Amazon Technologies, Inc.

Inventor： John Nilles ,  Lionel Bitoun ,  Rahul Chopra ,  Fredrik Wass ,  Ron E. Knapp ,  Megan Duffy ,  Nelson M. Pereira

IPC: G06F21/78 ,  G06F21/60 ,  G06F21/62 ,  H04L9/06 ,  H04L9/08

Abstract: Systems, devices, and methods are provided for stable pseudonymous identifiers. A system may obtain first data, and obtain a first cryptographic key from a cryptography service. The system may determine, based at least in part on the first data and the first cryptographic key, a first hash output of a hash function. The system may determine that a mapping table does not include a first record associated with the first hash output. The system may create, in the mapping table, a first record comprising the first hash output and a random value. The system may provide the random value as a stable pseudonymous identifier of the first data. If the first cryptographic key is subject to a key rotation, the pseudonymous identifier of the first data may remain constant even though the value of the key changes as a result of the key rotation.