公开(公告)号：US20240160795A1

公开(公告)日：2024-05-16

申请号：US18419359

申请日：2024-01-22

Applicant: Microsoft Technology Licensing, LLC

Inventor： Stavros VOLOS ,  David Thomas CHISNALL ,  Saurabh Mohan KULKARNI ,  Kapil VASWANI ,  Manuel COSTA ,  Samuel Alexander WEBSTER ,  Cédric Alain Marie FOURNET ,  Richard OSBORNE ,  Daniel John Pelham WILKINSON ,  Graham Bernard CUNNINGHAM

IPC: G06F21/85 ,  G06F21/60 ,  H04L9/30 ,  H04L9/32

CPC classification number: G06F21/85 ,  G06F21/602 ,  H04L9/30 ,  H04L9/3265

Abstract: A peripheral device, for use with a host, comprises one or more compute elements a security module and at least one encryption unit. The security module is configured to form a trusted execution environment on the peripheral device for processing sensitive data using sensitive code. The sensitive data and sensitive code are provided by a trusted computing entity which is in communication with the host computing device. The at least one encryption unit is configured to encrypt and decrypt data transferred between the trusted execution environment and the trusted computing entity via the host computing device. The security module is configured to compute and send an attestation to the trusted computing entity to attest that the sensitive code is in the trusted execution environment.

公开(公告)号：US20230342121A1

公开(公告)日：2023-10-26

申请号：US18005246

申请日：2021-07-13

Applicant: Microsoft Technology Licensing, LLC

Inventor： Daniel John Pelham WILKINSON ,  Richard OSBORNE ,  Graham Bernard CUNNINGHAM ,  Kenneth GORDON ,  Samuel Alexander WEBSTER ,  Stavros VOLOS ,  Kapil VASWANI ,  Balaji VEMBU ,  Cédric Alain Marie FOURNET

IPC: G06F8/41

CPC classification number: G06F8/41

Abstract: A processing system comprising one or more chips, each comprising a plurality of tiles is described. Each tile comprises a respective processing unit and memory, the memory storing a codelet. The processing system has at least one encryption unit configured to encrypt and decrypt data transferred between the tiles and a trusted computing entity via an external computing device. The codelets are configured to instruct the tiles to transfer the encrypted data by reading from and writing to a plurality of memory regions at the external memory such that a plurality of streams of encrypted data are formed, each stream using an individual one of the memory regions at the external computing device.

公开(公告)号：US20210342492A1

公开(公告)日：2021-11-04

申请号：US17374942

申请日：2021-07-13

Applicant: Microsoft Technology Licensing, LLC

Inventor： Stavros VOLOS ,  David Thomas CHISNALL ,  Saurabh Mohan KULKARNI ,  Kapil VASWANI ,  Manuel COSTA ,  Samuel Alexander WEBSTER ,  Cédric Alain Marie FOURNET ,  Richard OSBORNE ,  Daniel John Pelham WILKINSON ,  Graham Bernard CUNNINGHAM

IPC: G06F21/85 ,  G06F21/60 ,  H04L9/30 ,  H04L9/32

Abstract: A peripheral device, for use with a host, comprises one or more compute elements a security module and at least one encryption unit. The security module is configured to form a trusted execution environment on the peripheral device for processing sensitive data using sensitive code. The sensitive data and sensitive code are provided by a trusted computing entity which is in communication with the host computing device. The at least one encryption unit is configured to encrypt and decrypt data transferred between the trusted execution environment and the trusted computing entity via the host computing device. The security module is configured to compute and send an attestation to the trusted computing entity to attest that the sensitive code is in the trusted execution environment.