Inventor
KRAWCZYK HUGO M
US23 patents
⚠️ This page may combine multiple inventors who share the name “KRAWCZYK HUGO M”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
IBM
19 patentsUS5530757AJun 25, 1996
Distributed fingerprints for information integrity verification
IBM185 citations98
US5625692AApr 29, 1997
Method and system for a public key cryptosystem having proactive, robust, and recoverable distributed threshold secret sharing
IBM157 citations96
US9852306B2Dec 26, 2017
Conjunctive search in encrypted data
IBM35 citations92
US9646166B2May 9, 2017
Masking query data access pattern in encrypted data
IBM32 citations92
US5345507ASep 6, 1994
Secure message authentication for binary additive stream cipher systems
IBM44 citations92
US10833861B2Nov 10, 2020
Protection of confidentiality, privacy and ownership assurance in a blockchain based decentralized identity management system
IBM14 citations84
US7747865B2Jun 29, 2010
Method and structure for challenge-response signatures and high-performance secure Diffie-Hellman protocols
IBM7 citations73
US11165766B2Nov 2, 2021
Implementing authentication protocol for merging multiple server nodes with trusted platform modules utilizing provisioned node certificates to support concurrent node add and remove
IBM2 citations72
US10841080B2Nov 17, 2020
Oblivious pseudorandom function in a key management system
IBM4 citations72
US10887088B2Jan 5, 2021
Virtualizing a key hierarchy using a partially-oblivious pseudorandom function (P-OPRF)
IBM2 citations71
US10841081B2Nov 17, 2020
Threshold oblivious pseudorandom function in a key management system
IBM3 citations71
US9742557B2Aug 22, 2017
Compressing encrypted data without the encryption key
IBM3 citations71
US10700859B2Jun 30, 2020
Efficient computation of a threshold partially-oblivious pseudorandom function
IBM1 citations62
US11115206B2Sep 7, 2021
Assymetric structured key recovering using oblivious pseudorandom function
IBM0 citations52
US10924267B2Feb 16, 2021
Validating keys derived from an oblivious pseudorandom function
IBM0 citations51
US10887293B2Jan 5, 2021
Key identifiers in an obliviousness pseudorandom function (OPRF)-based key management service (KMS)
IBM0 citations51
US10089487B2Oct 2, 2018
Masking query data access pattern in encrypted data
IBM1 citations50
US9584323B2Feb 28, 2017
Compressing encrypted data without the encryption key
IBM0 citations50
US9282082B2Mar 8, 2016
Compressing encrypted data without the encryption key
IBM0 citations50