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Secure cloud-based shared content

  • US 10,402,376 B2
  • Filed: 06/30/2018
  • Issued: 09/03/2019
  • Est. Priority Date: 04/29/2015
  • Status: Active Grant
First Claim
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1. A method for:

  • identifying a cloud-based environment, the cloud-based environment comprising at least a storage device storing a content object accessible by two or more users over a network;

    performing, for a first user from a first enterprise, a content-based encryption that generates a first copy of an encrypted file by encrypting the content object with a content-based encryption key, wherein the content-based encryption key is encrypted by a first enterprise-based encryption key;

    storing the first copy of the encrypted file at a cloud-based environment;

    performing, for a second user from a second enterprise, the content-based encryption that generates a second copy of the encrypted file by encrypting the content object with the content-based encryption key, wherein the content-based encryption key is encrypted by a second enterprise-based encryption key that is different from the first enterprise-based encryption key;

    storing the second copy of the encrypted file at a cloud-based environment; and

    performing deduplication of the content object across multiple users that perform encryption, wherein the deduplication is performed based at least in part on at least one of, an intra-enterprise deduplicate directive, or an inter-enterprise deduplicate directive, wherein the at least one of the intra-enterprise deduplicate directive or the inter-enterprise deduplicate directive is accessed from metadata pertaining to a respective entity, wherein at least one deduplication directive is determined and the encrypted file is stored based at least in part on the at least one deduplication directive.

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