METHODS AND SYSTEMS FOR ENFORCING, BY A KERNEL DRIVER, A USAGE RESTRICTION ASSOCIATED WITH ENCRYPTED DATA
A method of providing a restricted set of application programming interfaces includes decrypting, by a secure object information reader executing on a computing device, an encrypted data object using information associated with the encrypted data object to generate a decrypted data object, the information received from an access control management system. The method includes intercepting, by a kernel driver executing on the computing device, from a process executing on the computing device, a request to access the decrypted data object. The method includes identifying, by the kernel driver, using the information associated with the encrypted data object, a usage requirement restricting a set of operations available to the process in accessing the decrypted data object. The method includes providing, by the kernel driver, to the process, a restricted set of application programming interfaces with which to interact with the decrypted data object, as permitted by the restricted set of operations.
1 . A method of providing a restricted set of application programming interfaces comprising:
decrypting, by a secure object information reader executing on a computing device, an encrypted data object using information associated with the encrypted data object to generate a decrypted data object, the information received from an access control management system;
intercepting, by a kernel driver executing on the computing device, from a process executing on the computing device, a request to access the decrypted data object;
retrieving, by the kernel driver, from the information received from the access control management system, a usage requirement restricting a set of operations available to the process in accessing the decrypted data object;
identifying, by the kernel driver, in the retrieved usage requirement, an operation a user of the computing device is authorized to execute; and
providing, by the kernel driver, to the process, a restricted set of application programming interfaces with which to interact with the decrypted data object, the restricted set including the authorized operation identified in the retrieved usage requirement.
2 . A method of providing a restricted set of application programming interfaces comprising:
decrypting, by a secure object information reader executing on a computing device, an encrypted data object using information associated with the encrypted data object, the information received from an access control management system and including at least one usage restriction;
intercepting, by a kernel driver executing on the computing device, from a user of the computing device, a request to access the decrypted data object;
identifying, by the kernel driver, a process associated with the decrypted data object in a file type association mapping;
launching, by the kernel driver, the identified process on the computing device into a protected memory space;
intercepting, by the kernel driver, a request from the identified process for a type of access to the decrypted data object;
retrieving, by the kernel driver, from the information received from the access control management system, the at least one usage requirement;
identifying, by the kernel driver, in the retrieved at least one usage requirement, an operation a user of the computing device is authorized to execute;
determining, by the kernel driver, based on the identified authorized operation in the retrieved at least one usage requirement, that the at least one usage restriction permits the type of access requested; and
providing, by the kernel driver, to the process, an application programming interface with which to access the decrypted data object.
3 . A method of providing a restricted set of application programming interfaces comprising:
decrypting, by a secure object information reader executing on a computing device, an encrypted data object using information associated with the encrypted data object, the information received from an access control management system and including at least one usage restriction;
intercepting, by a kernel driver executing on the computing device, from a user of the computing device, a request to access the decrypted data object;
identifying, by the kernel driver, a process associated with the decrypted data object in a file type association mapping;
launching, by the kernel driver, the identified process on the computing device into a protected memory space;
intercepting, by the kernel driver, a request from the identified process for a type of access to the decrypted data object;
retrieving, by the kernel driver, from the information received from the access control management system, the at least one usage requirement;
determining, by the kernel driver, using the retrieved at least one usage requirement, that the at least one usage restriction does not permit the type of access; and
rejecting, by the kernel driver, the process request for access.
4 . The method of claim 3 , further comprising identifying, by the kernel driver, in the retrieved at least one usage requirement, an operation a user of the computing device is authorized to execute.
5 . The method of claim 4 , further comprising providing, by the kernel driver, to the process, a restricted set of application programming interfaces with which to interact with the decrypted data object, the restricted set including the authorized operation identified in the retrieved usage requirement.