Time-domain physical unclonable key (TPUK) authenticated communication
AssigneeUniversiteit Twente (Ut)
InventorsPepijn Pinkse, Matthijs Velsink
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Abstract
A method for a PUK authenticated communication includes creating an optical challenge in a time-frequency domain, providing the optical challenge to a tPUK which includes a spatial input channel and a plurality of spatial output channels, and detecting in which of the plurality of spatial output channels a short temporally focused pulse is created. The tPUK provides a complex challenge-response behavior in the time-frequency domain. The optical challenge is created so that the tPUK creates the response having a short temporally focused pulse in only one of the plurality of spatial output channels of the tPUK.
Claims29
A method for an Optical Physical Unclonable Key (PUK) authenticated communication, the method comprising:
- a first party creating an optical challenge in a time-frequency domain;
- the first party providing the optical challenge to a time-frequency Optical Physical Unclonable Key (tPUK) of a second party, the tPUK comprising a spatial input channel and a plurality of spatial output channels, the tPUK being configured to provide a complex challenge-response behavior in the time-frequency domain, wherein the optical challenge is created so that the tPUK creates a response having a short temporally focused pulse in only one of the plurality of spatial output channels of the tPUK;
- the second party detecting in which of the plurality of spatial output channels the short temporally focused pulse is created;
- and
- the second party reporting back to the first party in which of the plurality of spatial output channels the short temporally focused pulse is created so as to authenticate the second party to the first party.
A method for an Optical Physical Unclonable Key (PUK) authenticated communication, the method comprising:
- a first party creating an optical challenge in a time-frequency domain;
- the first party providing the optical challenge to a time-frequency Optical Physical Unclonable Key (tPUK) of a second party, the tPUK comprising a spatial input channel and a spatial output channel, the tPUK being configured to provide a complex challenge-response behavior in the time-frequency domain, wherein the optical challenge is created so that the tPUK creates a response having a short temporally focused pulse in the spatial output channel;
- the second party detecting if the short temporally focused pulse is created in the spatial output channel;
- and
- the second party reporting back to the first party if the short temporally focused pulse is created so as to authenticate the second party to the first party.
A system for an Optical Physical Unclonable Key (PUK) authenticated communication, the system comprising:
- a challenge creating means which is configured to create an optical challenge in a time-frequency domain;
- a time-frequency Optical Physical Unclonable Key (tPUK) comprising,
- a spatial input channel,
- a plurality of spatial output channels, and
- a complex challenge-response behavior in the time frequency domain,
- wherein the challenge creating means is configured to create the optical challenge so that a short temporally focused pulse is created in a response in only one of the plurality of spatial output channels;
- and
- a detection device which is configured to detect in which of the plurality of spatial output channels the short temporally focused pulse is created.
A system for an Optical Physical Unclonable Key (PUK) authenticated communication, the system comprising:
- a challenge creating means which is configured to create an optical challenge in a time-frequency domain;
- a time-frequency Optical Physical Unclonable Key (tPUK) comprising,
- a spatial input channel,
- a spatial output channel, and
- a complex challenge-response behavior in the time-frequency domain,
- wherein the challenge creating means is configured to create the optical challenge so that a short temporally focused pulse is created in the response in the spatial output channel;
- and
- a detection device which is configured to detect if the short temporally focused pulse is created in the output channel.
Dependencies are inferred from the claim text.