Inventor · disambiguated record
Hugo M. Krawczyk
Also filed as: KRAWCZYK HUGO · KRAWCZYK HUGO M · KRAWCZYK HUGO MARIO
30 granted patents·2 pending applications·1,904 citations·filing 1993–2019
97Inventor score
Top patents by PatentIndex Score
32 records- 0198US5745678AMethod and system for the secured distribution of multimedia titlesIBM·Filed 1997·Granted Apr 28, 1998·513 cites·38 claims
- 0296USRE38375EMethod and system for the secured distribution of multimedia titlesIBM·Filed 2000·Granted Dec 30, 2003·134 cites·38 claims
- 0395US5519706ADynamic user registration method in a mobile communications networkIBM·Filed 1994·Granted May 21, 1996·291 cites·18 claims
- 0494US9646166B2Masking query data access pattern in encrypted dataIBM·Filed 2013·Granted May 9, 2017·32 cites·20 claims
- 0593US9852306B2Conjunctive search in encrypted dataIBM·Filed 2013·Granted Dec 26, 2017·35 cites·28 claims
- 0692US10833861B2Protection of confidentiality, privacy and ownership assurance in a blockchain based decentralized identity management systemIBM·Filed 2017·Granted Nov 10, 2020·14 cites·16 claims
- 0791US5530757ADistributed fingerprints for information integrity verificationIBM·Filed 1994·Granted Jun 25, 1996·185 cites·11 claims
- 0889US8522029B2Secret-key exchange for wireless and sensor networksAGRAWAL DAKSHI·Filed 2010·Granted Aug 27, 2013·13 cites·25 claims
- 0988US11184149B2Computing range queries over encrypted dataIBM·Filed 2019·Granted Nov 23, 2021·5 cites·20 claims
- 1088US6292897B1Undeniable certificates for digital signature verificationIBM·Filed 1997·Granted Sep 18, 2001·196 cites·13 claims
- 1188US6108783AChameleon hashing and signaturesIBM·Filed 1998·Granted Aug 22, 2000·187 cites·15 claims
- 1284US5625692AMethod and system for a public key cryptosystem having proactive, robust, and recoverable distributed threshold secret sharingIBM·Filed 1995·Granted Apr 29, 1997·157 cites·16 claims
- 1383US10841080B2Oblivious pseudorandom function in a key management systemIBM·Filed 2018·Granted Nov 17, 2020·4 cites·16 claims
- 1482US9742557B2Compressing encrypted data without the encryption keyIBM·Filed 2017·Granted Aug 22, 2017·3 cites·20 claims
- 1581US8646062B2Remote authentication based on challenge-response using digital certificatesBOUZ FIRAS·Filed 2010·Granted Feb 4, 2014·9 cites·18 claims
- 1680US10841081B2Threshold oblivious pseudorandom function in a key management systemIBM·Filed 2018·Granted Nov 17, 2020·3 cites·20 claims
- 1778US11165766B2Implementing authentication protocol for merging multiple server nodes with trusted platform modules utilizing provisioned node certificates to support concurrent node add and removeIBM·Filed 2018·Granted Nov 2, 2021·2 cites·20 claims
- 1878US8934630B2Compressing block-cipher encrypted dataHAZAY CAMIT·Filed 2009·Granted Jan 13, 2015·8 cites·17 claims
- 1977US7747865B2Method and structure for challenge-response signatures and high-performance secure Diffie-Hellman protocolsIBM·Filed 2006·Granted Jun 29, 2010·7 cites·25 claims
- 2075US10887088B2Virtualizing a key hierarchy using a partially-oblivious pseudorandom function (P-OPRF)IBM·Filed 2018·Granted Jan 5, 2021·2 cites·20 claims
- 2171US8422681B2Non-interactive hierarchical identity-based key-agreementGENNARO ROSARIO·Filed 2008·Granted Apr 16, 2013·6 cites·20 claims
- 2270US10089487B2Masking query data access pattern in encrypted dataIBM·Filed 2017·Granted Oct 2, 2018·1 cites·12 claims
- 2369US5515439AExchange certificate for one way validation of informationIBM·Filed 1994·Granted May 7, 1996·52 cites·18 claims
- 2467US10700859B2Efficient computation of a threshold partially-oblivious pseudorandom functionIBM·Filed 2018·Granted Jun 30, 2020·1 cites·20 claims
- 2563US5345507ASecure message authentication for binary additive stream cipher systemsIBM·Filed 1993·Granted Sep 6, 1994·44 cites·14 claims
- 2657US9282082B2Compressing encrypted data without the encryption keyIBM·Filed 2014·Granted Mar 8, 2016·0 cites·5 claims
- 2756US9584323B2Compressing encrypted data without the encryption keyIBM·Filed 2016·Granted Feb 28, 2017·0 cites·20 claims
- 2849US11115206B2Assymetric structured key recovering using oblivious pseudorandom functionIBM·Filed 2018·Granted Sep 7, 2021·0 cites·20 claims
- 2949US10924267B2Validating keys derived from an oblivious pseudorandom functionIBM·Filed 2018·Granted Feb 16, 2021·0 cites·20 claims
- 3045US2008281966A1Method and system of network communication privacy between network devicesIBM·Filed 2007·Application pending·0 cites
- 3144US10887293B2Key identifiers in an obliviousness pseudorandom function (OPRF)-based key management service (KMS)IBM·Filed 2018·Granted Jan 5, 2021·0 cites·20 claims
- 3244US2009031142A1System, Method and Computer Program Product for Processing a Memory PageHALEVI SHAI·Filed 2007·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Hugo M. Krawczyk files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →