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SECURE CLOUD STORAGE DISTRIBUTION AND AGGREGATION

  • US 20170061141A1
  • Filed: 11/12/2016
  • Published: 03/02/2017
  • Est. Priority Date: 12/02/2013
  • Status: Active Grant
First Claim
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1. A method comprising:

  • maintaining, by a trusted gateway device logically interposed between an enterprise network and a plurality of third-party cloud storage services, a plurality of cryptographic keys;

    receiving, by the trusted gateway device, a local file from a user of the enterprise network that is to be stored across one or more cloud storage services of the plurality of third-party cloud storage services;

    partitioning, by the trusted gateway device, the local file into a plurality of chunks of a predefined or configurable size;

    causing to be created, by the trusted gateway device, a directory within the one or more cloud storage services, wherein a name attribute of the directory is set based on an encrypted version of a name of the local file;

    selecting, by the trusted gateway device, a cryptographic key of the plurality of cryptographic keys based on a policy defined by the enterprise for the user; and

    for each chunk of the plurality of chunks;

    identifying, by the trusted gateway device, existence of data within the chunk associated with one or more predefined search indices of a plurality of predefined searchable indices;

    generating, by the trusted gateway device, searchable encrypted metadata based on the identified data and the selected cryptographic key;

    generating, by the trusted gateway device, an encrypted version of the chunk based on the selected cryptographic key; and

    causing to be created, by the trusted gateway device, a remote file within the directory, wherein a name attribute of the remote file includes the searchable encrypted metadata and wherein a contents of the remote file includes the encrypted version of the chunk.

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