Printed smart devices for anti-counterfeiting allowing precise identification with household equipment.

ABSTRACT: Counterfeiting has become a serious global problem, causing worldwide losses and disrupting the normal order of society. Physical unclonable functions are promising hardware-based cryptographic primitives, especially those generated by chemical processes showing a massive challenge-response pair space. However, current chemical-based physical unclonable function devices typically require complex fabrication processes or sophisticated characterization methods with only binary (bit) keys, limiting their practical applications and security properties. Here, we report a flexible laser printing method to synthesize unclonable electronics with high randomness, uniqueness, and repeatability. Hexadecimal resistive keys and binary optical keys can be obtained by the challenge with an ohmmeter and a

SUBMITTER: Zhang J 

PROVIDER: S-EPMC10838302 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature