scholarly journals KEY MANAGEMENT SERVICE: ENABLING SECURE SHARING AND DELETING OF DOCUMENTS ON PUBLIC CLOUDS

Cryptography ◽  
2019 ◽  
Vol 3 (3) ◽  
pp. 23
Author(s):  
Matthew Campagna ◽  
Shay Gueron

This paper describes a cloud-scale encryption system. It discusses the constraints that shaped the design of Amazon Web Services’ Key Management Service, and in particular, the challenges that arise from using a standard mode of operation such as AES-GCM while safely supporting huge amounts of encrypted data that is (simultaneously) generated and consumed by a huge number of users employing different keys. We describe a new derived-key mode that is designed for this multi-user-multi-key scenario typical at the cloud scale. Analyzing the resulting security bounds of this model illustrates its applicability for our setting. This mode is already deployed as the default mode of operation for the AWS key management service.


2021 ◽  
Author(s):  
Jingjing Chen ◽  
Lingling Guo ◽  
Yulun Shi ◽  
Yao Shi ◽  
Yi Ruan

1996 ◽  
Vol 4 (4) ◽  
pp. 267-287 ◽  
Author(s):  
Michael K. Reiter ◽  
Matthew K. Franklin ◽  
John B. Lacy ◽  
Rebecca N. Wright

2001 ◽  
Vol 4 (4) ◽  
pp. 453-482 ◽  
Author(s):  
Pierangela Samarati ◽  
Michael K. Reiter ◽  
Sushil Jajodia

Author(s):  
Michael K. Reiter ◽  
Matthew K. Franklin ◽  
John B. Lacy ◽  
Rebecca N. Wright

2016 ◽  
Vol 4 (2) ◽  
pp. 15-31 ◽  
Author(s):  
Surya Nepal ◽  
◽  
Carsten Friedrich ◽  
Catherine Wise ◽  
Richard O. Sinnott ◽  
...  

Author(s):  
José Bacelar Almeida ◽  
Manuel Barbosa ◽  
Gilles Barthe ◽  
Matthew Campagna ◽  
Ernie Cohen ◽  
...  

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