Storage layer data obfuscation

1. A method comprising:

determining, by a processor during a write operation to a storage system, a sensitive subset of a dataset to obfuscate in accordance with a security policy;

indicating in metadata for the dataset that the sensitive subset of the dataset is to be obfuscated;

generating, by the storage system and according to the security policy and a schedule, an obfuscated snapshot of the dataset by obfuscating the sensitive subset of the dataset based on the metadata for the dataset, wherein the sensitive subset remains obfuscated to an untrusted target computer system at a time that the untrusted target computer system restores the dataset from the obfuscated snapshot, and wherein the obfuscated snapshot captures the state of the dataset at a specific point in time with the sensitive subset obfuscated; and

providing, to one or more untrusted target computer systems, the obfuscated snapshot for restoration of the dataset corresponding to the specific point in time with the sensitive subset of the dataset obfuscated at the one or more untrusted target computer systems.

2. The method of claim 1 , wherein generating the obfuscated snapshot is performed by a controller of a storage system.

3. The method of claim 2 , wherein the storage system is within a trusted computing environment in accordance with the security policy, and wherein the untrusted target computer system is not within a trusted computing environment in accordance with the security policy.

4. The method of claim 1 , wherein the dataset comprises a structured database that is structured in accordance with a schema.

5. The method of claim 4 , wherein generating the obfuscated snapshot further comprises:

interpreting the dataset in accordance with the schema to determine one or more columns of data to obfuscate.

6. The method of claim 1 , wherein the dataset is unstructured data, and wherein generating the obfuscated snapshot further comprises:

interpreting the dataset to determine one or more types of data to obfuscate, wherein the one or more types are specified by one or more of: a user or one or more rule sets.

7. The method of claim 1 , wherein the security policy specifies permissions for users within different computing environment, wherein the security policy specifies one or more portions or types of data correspond to one or more of the permissions for users, wherein the security policy specifies access limitations to allow access only to datasets that have been correctly obfuscated, and wherein the obfuscated snapshot is tagged with metadata specifying the security policy used to obfuscate the obfuscated snapshot.

8. An apparatus comprising:

a computer processor configured to implement an obfuscation engine; and

a computer memory operatively coupled to the computer processor, the computer memory having disposed within it computer program instructions implementing the obfuscation engine that, when executed by the computer processor, cause the apparatus to perform:

determining, by the computer processor during a write operation to a storage system, a sensitive subset of a dataset to obfuscate in accordance with a security policy;

indicating in metadata for the dataset that the sensitive subset of the dataset is to be obfuscated;

generating, by the storage system and according to the security policy and a schedule, an obfuscated snapshot of the dataset by obfuscating the sensitive subset of the dataset based on the metadata for the dataset, wherein the sensitive subset remains obfuscated to an untrusted target computer system at a time that the untrusted target computer system restores the dataset from the obfuscated snapshot, and wherein the obfuscated snapshot captures the state of the dataset at a specific point in time with the sensitive subset obfuscated; and

providing, to one or more untrusted target computer systems, the obfuscated snapshot for restoration of the dataset corresponding to the specific point in time with the sensitive subset of the dataset obfuscated at the one or more untrusted target computer systems.

9. The apparatus of claim 8 , wherein generating the obfuscated snapshot is performed by a controller of a storage system.

10. The apparatus of claim 9 , wherein the storage system is within a trusted computing environment in accordance with the security policy, and wherein the untrusted target computer system is not within a trusted computing environment in accordance with the security policy.

11. The apparatus of claim 8 , wherein the dataset comprises a structured database that is structured in accordance with a schema.

12. The apparatus of claim 11 , wherein the computer program instructions implementing the obfuscation engine further cause the apparatus to perform:

interpreting the dataset in accordance with the schema to determine one or more columns of data to obfuscate.

13. The apparatus of claim 8 , wherein the computer program instructions implementing the obfuscation engine further cause the apparatus to perform:

interpreting the dataset to determine one or more types of data to obfuscate, wherein the one or more types are specified by one or more of: a user or one or more rule sets.

14. The apparatus of claim 8 , wherein the security policy specifies permissions for users within different computing environment, wherein the security policy specifies one or more portions or types of data correspond to one or more of the permissions for users, wherein the security policy specifies access limitations to allow access only to datasets that have been correctly obfuscated, and wherein the obfuscated snapshot is tagged with metadata specifying the security policy used to obfuscate the obfuscated snapshot.

15. A computer program product disposed upon a non-transitory computer readable medium, the computer program product comprising computer program instructions that, when executed, cause a computer to perform:

determining, by a processor during a write operation to a storage system, a sensitive subset of a dataset to obfuscate in accordance with a security policy;

indicating in metadata for the dataset that the sensitive subset of the dataset is to be obfuscated;

generating, by the storage system and according to the security policy and a schedule, an obfuscated snapshot of the dataset by obfuscating the sensitive subset of the dataset based on the metadata for the dataset, wherein the sensitive subset remains obfuscated to an untrusted target computer system at a time that the untrusted target computer system restores the dataset from the obfuscated snapshot, and wherein the obfuscated snapshot captures the state of the dataset at a specific point in time with the sensitive subset obfuscated; and

providing, to one or more untrusted target computer systems, the obfuscated snapshot for restoration of the dataset corresponding to the specific point in time with the sensitive subset of the dataset obfuscated at the one or more untrusted target computer systems.

16. The computer program product of claim 15 , wherein generating the obfuscated snapshot is performed by a controller of a storage system.

17. The computer program product of claim 16 , wherein the storage system is within a trusted computing environment in accordance with the security policy, and wherein the untrusted target computer system is not within a trusted computing environment in accordance with the security policy.

18. The computer program product of claim 15 , wherein the dataset comprises a structured database that is structured in accordance with a schema.

19. The computer program product of claim 18 , the program instructions, when executed, further cause the computer to perform:

interpreting the dataset in accordance with the schema to determine one or more columns of data to obfuscate.

20. The computer program product of claim 15 , the program instructions, when executed, further cause the computer to perform:

interpreting the dataset to determine one or more types of data to obfuscate, wherein the one or more types are specified by one or more of: a user or one or more rule sets.