Certified quantum random numbers from untrusted light
A remarkable aspect of quantum theory is that certain measurement outcomes are entirely unpredictable to all possible observers. Such quantum events can be harnessed to generate numbers whose randomness is asserted based upon the underlying physical processes. We formally introduce, design and exper...
| Main Authors: | , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
American Physical Society
2020
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| _version_ | 1826276311346184192 |
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| author | Drahi, D Walk, N Hoban, MJ Fedorov, AK Shakhovoy, R Feimov, A Kurochkin, Y Kolthammer, SW Nunn, J Barrett, J Walmsley, IA |
| author_facet | Drahi, D Walk, N Hoban, MJ Fedorov, AK Shakhovoy, R Feimov, A Kurochkin, Y Kolthammer, SW Nunn, J Barrett, J Walmsley, IA |
| author_sort | Drahi, D |
| collection | OXFORD |
| description | A remarkable aspect of quantum theory is that certain measurement outcomes are entirely unpredictable to all possible observers. Such quantum events can be harnessed to generate numbers
whose randomness is asserted based upon the underlying physical processes. We formally introduce,
design and experimentally demonstrate an ultrafast optical quantum random number generator that
uses a totally untrusted photonic source. While considering completely general quantum attacks,
we certify and generate in real-time random numbers at a rate of 8.05 Gb/s with a rigorous security
parameter of 10−10. Our security proof is entirely composable, thereby allowing the generated randomness to be utilised for arbitrary applications in cryptography and beyond. To our knowledge,
this represents the fastest composably secure source of quantum random numbers ever reported. |
| first_indexed | 2024-03-06T23:12:02Z |
| format | Journal article |
| id | oxford-uuid:65d22426-dd6b-42d0-b06e-47e6b28f9bd5 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T23:12:02Z |
| publishDate | 2020 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | oxford-uuid:65d22426-dd6b-42d0-b06e-47e6b28f9bd52022-03-26T18:27:59ZCertified quantum random numbers from untrusted lightJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:65d22426-dd6b-42d0-b06e-47e6b28f9bd5EnglishSymplectic ElementsAmerican Physical Society2020Drahi, DWalk, NHoban, MJFedorov, AKShakhovoy, RFeimov, AKurochkin, YKolthammer, SWNunn, JBarrett, JWalmsley, IAA remarkable aspect of quantum theory is that certain measurement outcomes are entirely unpredictable to all possible observers. Such quantum events can be harnessed to generate numbers whose randomness is asserted based upon the underlying physical processes. We formally introduce, design and experimentally demonstrate an ultrafast optical quantum random number generator that uses a totally untrusted photonic source. While considering completely general quantum attacks, we certify and generate in real-time random numbers at a rate of 8.05 Gb/s with a rigorous security parameter of 10−10. Our security proof is entirely composable, thereby allowing the generated randomness to be utilised for arbitrary applications in cryptography and beyond. To our knowledge, this represents the fastest composably secure source of quantum random numbers ever reported. |
| spellingShingle | Drahi, D Walk, N Hoban, MJ Fedorov, AK Shakhovoy, R Feimov, A Kurochkin, Y Kolthammer, SW Nunn, J Barrett, J Walmsley, IA Certified quantum random numbers from untrusted light |
| title | Certified quantum random numbers from untrusted light |
| title_full | Certified quantum random numbers from untrusted light |
| title_fullStr | Certified quantum random numbers from untrusted light |
| title_full_unstemmed | Certified quantum random numbers from untrusted light |
| title_short | Certified quantum random numbers from untrusted light |
| title_sort | certified quantum random numbers from untrusted light |
| work_keys_str_mv | AT drahid certifiedquantumrandomnumbersfromuntrustedlight AT walkn certifiedquantumrandomnumbersfromuntrustedlight AT hobanmj certifiedquantumrandomnumbersfromuntrustedlight AT fedorovak certifiedquantumrandomnumbersfromuntrustedlight AT shakhovoyr certifiedquantumrandomnumbersfromuntrustedlight AT feimova certifiedquantumrandomnumbersfromuntrustedlight AT kurochkiny certifiedquantumrandomnumbersfromuntrustedlight AT kolthammersw certifiedquantumrandomnumbersfromuntrustedlight AT nunnj certifiedquantumrandomnumbersfromuntrustedlight AT barrettj certifiedquantumrandomnumbersfromuntrustedlight AT walmsleyia certifiedquantumrandomnumbersfromuntrustedlight |