Efficient post-quantum secure software updates tailored to resource-constrained devices
AssigneeIntel Corporation
InventorsSantosh Ghosh, Marcio Juliato, Manoj Sastry
Life of this patent
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Abstract
A method comprises receiving an image of an update for a software module, a rate parameter, an index parameter, and a public key, generating a 32-byte aligned string, computing a state parameter using the 32-byte aligned string, generating a modified message representative, computing a Merkle Tree root node, and in response to a determination that the Merkle Tree root node matches the public key, forwarding, to a remote device, the image of the update for a software module, the state parameter; and the modified message representative.
Claims12
An apparatus, comprising:
- a hardware processor to:
- receive an image of an update for a software module, a random parameter, an index parameter, and a public key;
- generate an n-byte aligned string;
- compute a state parameter using the n-byte aligned string;
- generate a modified message representative;
- compute a Merkle Tree root node;
- and
- in response to a determination that the Merkle Tree root node matches the public key, forward, to a remote device, the image of the update for a software module, the state parameter;
- and the modified message representative.
A computer-based method, comprising:
- receiving an image of an update for a software module, a random parameter, an index parameter, and a public key;
- generating an n-byte aligned string;
- computing a state parameter using the n-byte aligned string;
- generating a modified message representative;
- computing a Merkle Tree root node;
- and
- in response to a determination that the Merkle Tree root node matches the public key, forwarding, to a remote device, the image of the update for a software module, the state parameter;
- and the modified message representative.
A non-transitory computer readable medium comprising instructions which, when executed by a processor, configure the processor to:
- receive an image of an update for a software module, a rate parameter, an index parameter, and a public key;
- generate an n-byte aligned string;
- compute a state parameter using the n-byte aligned string;
- generate a modified message representative;
- compute a Merkle Tree root node;
- and
- in response to a determination that the Merkle Tree root node matches the public key, forward, to a remote device, the image of the update for a software module, the state parameter;
- and the modified message representative.
Dependencies are inferred from the claim text.