公开(公告)号：AU2021253779A1

公开(公告)日：2022-09-29

申请号：AU2021253779

申请日：2021-03-16

Applicant: IBM

Inventor： TEICH TORSTEN ,  LOW ANDREW

IPC: G06F21/62 ,  H04L9/40

Abstract: Techniques for privacy centric data security. A request to permit a data processor to access private data associated with a user is received at a cloud data privacy service. The request includes a request for a data access block relating to the private data, and a data filter describing one or more access parameters. The cloud privacy data service generates the first data access block, based on the private data and the data filter. The first data access block is transmitted from the cloud privacy service to a user device, which is configured to transmit the first data access block to the first data processor. The cloud data privacy service receives a request for the private data that includes the first data access block. The cloud data privacy service determines that the first data access block is valid, and grants the first data processor access to the private data.

公开(公告)号：CA2346766A1

公开(公告)日：2002-11-07

申请号：CA2346766

申请日：2001-05-07

Applicant: IBM CANADA

Inventor： STOODLEY KEVIN A ,  LOW ANDREW

IPC: G06F9/445 ,  G06F9/46

Abstract: A locking mechanism for use in a multi-thread environment supporting self- modifying code in which modifications to the code are made at runtime. The locking mechanism having associated helper code accessed by a call from the first instruction address in the code block . The helper code calculating the binary encoding for the call instruction and using an atomic compare and exchange instruction to compare the calculated binary encoding with the actual conten ts of the first instruction address. Where there is a match, a self loop instruction is written to the first instruction address to lock the specified code block for subsequent threads. The helper code contai ns instructions to resolve the references in the specified block. The last such instruction is an atomic store operation to replace the self loop instruction at the first instruction address with t he appropriate modified instruction.