METHOD AND SYSTEM FOR SECURE STORAGE AND RETRIEVAL OF MACHINE STATE

摘要

A machine state vector is received at a memory. The machine state vector has a machine state and a machine identifier. Write access qualification is met if the machine state entry is an initial write, or if the machine identifier matches the machine identifier of a stored machine state vector, and machine identifier and machine state are stored in the memory. A fetch machine state request is received, having a requestor machine identifier. A machine state retrieval qualification is met by the requestor machine identifier matching the stored machine identifier, and the machine state is retrieved.

主权项

1. A method for secure storage of a machine state, comprising:
receiving at a memory a machine state vector, the machine state vector comprising a machine state and a machine identifier, wherein the machine state is a state of a machine identified by the machine identifier; determining, in association with receiving the machine state vector, whether a write access qualification is satisfied, wherein the determining comprises,
determining whether a writing of a machine state entry for the machine identified by the machine identifier will be an initial write, wherein the initial write is of a machine state entry for the machine identified by the machine identifier;upon determining that the writing of the machine state entry will be an initial write, establishing the write access qualification as satisfied; and upon the write access qualification being satisfied, storing, in the memory, a current valid machine state entry, the current valid machine state entry comprising the machine state and, as a current stored machine identifier associated with the valid machine state entry, the machine identifier.