公开(公告)号：US11736278B1

公开(公告)日：2023-08-22

申请号：US17676607

申请日：2022-02-21

Applicant: Google LLC

Inventor： William Douglas Cox ,  Bo Zhu ,  Orest Bolohan ,  Shabsi Walfish

IPC: H04L29/06 ,  H04L9/08 ,  H04L9/30 ,  H04L9/06

CPC classification number: H04L9/085 ,  H04L9/0637 ,  H04L9/0643 ,  H04L9/30

Abstract: The present disclosure provides computing systems in which respective quorums of computing nodes securely manage respective secrets associated with cryptographic ledgers according to threshold secret sharing schemes. In particular, membership in the quorums can be changed dynamically and unpredictability to improve security of the quorums against adversarial attacks in which adversaries attempt to compromise or gain control of the computing nodes. More specifically, by changing membership in the quorum dynamically and unpredictability, the ability of the adversary to control at any given time a threshold number of the current members of the quorum and gain access to the secret is dramatically reduced.

公开(公告)号：US11258593B1

公开(公告)日：2022-02-22

申请号：US16818356

申请日：2020-03-13

Applicant: Google LLC

Inventor： William Douglas Cox ,  Bo Zhu ,  Orest Bolohan ,  Sheldon I. Walfish

IPC: H04L29/06 ,  H04L9/08 ,  H04L9/30 ,  H04L9/06

Abstract: The present disclosure provides computing systems in which respective quorums of computing nodes securely manage respective secrets associated with cryptographic ledgers according to threshold secret sharing schemes. In particular, membership in the quorums can be changed dynamically and unpredictability to improve security of the quorums against adversarial attacks in which adversaries attempt to compromise or gain control of the computing nodes. More specifically, by changing membership in the quorum dynamically and unpredictability, the ability of the adversary to control at any given time a threshold number of the current members of the quorum and gain access to the secret is dramatically reduced.

公开(公告)号：US12120223B2

公开(公告)日：2024-10-15

申请号：US18346513

申请日：2023-07-03

Applicant: Google LLC

Inventor： William Douglas Cox ,  Bo Zhu ,  Orest Bolohan ,  Sheldon I. Walfish

IPC: H04L29/06 ,  H04L9/06 ,  H04L9/08 ,  H04L9/30

CPC classification number: H04L9/085 ,  H04L9/0637 ,  H04L9/0643 ,  H04L9/30

Abstract: The present disclosure provides computing systems in which respective quorums of computing nodes securely manage respective secrets associated with cryptographic ledgers according to threshold secret sharing schemes. In particular, membership in the quorums can be changed dynamically and unpredictability to improve security of the quorums against adversarial attacks in which adversaries attempt to compromise or gain control of the computing nodes. More specifically, by changing membership in the quorum dynamically and unpredictability, the ability of the adversary to control at any given time a threshold number of the current members of the quorum and gain access to the secret is dramatically reduced.

公开(公告)号：US20240048366A1

公开(公告)日：2024-02-08

申请号：US18346513

申请日：2023-07-03

Applicant: Google LLC

Inventor： William Douglas Cox ,  Bo Zhu ,  Orest Bolohan ,  Sheldon I. Walfish

IPC: H04L9/08 ,  H04L9/30 ,  H04L9/06

CPC classification number: H04L9/085 ,  H04L9/30 ,  H04L9/0643 ,  H04L9/0637

Abstract: The present disclosure provides computing systems in which respective quorums of computing nodes securely manage respective secrets associated with cryptographic ledgers according to threshold secret sharing schemes. In particular, membership in the quorums can be changed dynamically and unpredictability to improve security of the quorums against adversarial attacks in which adversaries attempt to compromise or gain control of the computing nodes. More specifically, by changing membership in the quorum dynamically and unpredictability, the ability of the adversary to control at any given time a threshold number of the current members of the quorum and gain access to the secret is dramatically reduced.