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40+ years of cryptography and information security experience, including work applicable to blockchain (e.g., Bitcoin; Ethereum; Hyperledger), cryptocurrency, smart grid, and IoT, e.g., V2V communications, using elliptic curve cryptography (ECC) and symmetric encryption. Prior to joining Spring Labs, positions included: Vice President - Crypto Systems Research, DarkMatter, Research Staff Member - IBM Research, Chief Cryptographer - TrustCentral, Principal Member of Technical Staff - Certicom/BlackBerry/Research in Motion, Fellow of Technical Staff - Motorola, Chief Cryptographer - Orion Security Solutions, Chief Scientist - Wave Systems Corp., Chief Scientist, Security Systems - Digital Video Express, Vice President - CertCo/Bankers Trust, and senior technical positions at Sandia National Labs and the National Security Agency (NSA). Published and patented on: IoT; blockchain; identity management; integrity of video as forensic evidence; methods to balance digital rights restrictions against ease of use across multiple platforms (as adopted by Open Mobile Alliance); hierarchical key management; an architecture enabling consumers to access services and content from multiple providers without jeopardizing privacy interests of consumers or intellectual property rights of providers; highly scalable on-line payments achieved via task decoupling; and trustee-based tracing extensions to anonymous digital cash. Discovered a subtle cryptographic flaw in an electronic money system that Sandia was responsible for evaluating, and awarded a Certificate of Achievement by Director of NSA for cumulative work in protocol and algorithm design and evaluation.In addition to work in blockchain platforms and services, smart energy, DRM, key management and digital payments -- inventor of Digital Signature Algorithm (DSA) standardized in FIPS Publication 186, Digital Signature Standard (DSS). Ph.D. in Electrical Engineering from University of Southern California.Senior Member of IEEE.
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Independent ConsultantSelf-EmployedSan Jose, Ca, Us
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Technical AdvisorSpring Labs Mar 2024 - PresentMarina Del Rey, California, Us
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Sr. Director Of ResearchSpring Labs Feb 2022 - Mar 2024Marina Del Rey, California, UsCompany lead for design and evaluation of cryptographic technologies and systems applicable to use cases pertaining broadly to financial services and to tokenization in particular. Architect of patented Ethereum-compatible DeFi system that enables user-controlled selective on-chain release of off-chain- vetted KYC/KYB/AML information [conference on Privacy, Security & Trust 2023 - https://pstnet.ca/index.html; https://eprint.iacr.org/2022/1424]. Technical Advisor for Quadrata [Universal Identity for Web3] and for TrustCentral. Panelist [Data Visibility: https://enterprisemindset.com/retreats/july-10-11/ and Zero Trust: https://eln3.com/retreats/september-11-12/]. Speaker at (ISC)2 Security Congress 2023 [https://2023isc2securitycongress.eventscribe.net/].
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Director Of ResearchSpring Labs Apr 2019 - Feb 2022Marina Del Rey, California, Us
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Vice President - Crypto Systems ResearchDarkmatter Llc May 2016 - Apr 2019Dubai, AeSpearheads research and development efforts on a variety of cyber security and privacy topics, including Internet of Things, Public Key Infrastructure, Privilege Management Infrastructure, and advances in blockchains that meet authentication, authorization and accounting (AAA) requirements such as know your customer (KYC) and flexible auditability based on hierarchical key management principles. Leverages and builds upon previous experience as the principal architect of blockchain Fabric Membership Services for the open-source Linux Foundation Hyperledger Project (https://github.com/hyperledger/hyperledger/). Conference technical program committee, session/track chair, and speaker involvement, e.g., Privacy, Security and Trust (PST) 2017, IEEE Global IoT Summit 2017, and IEEE WF-IoT 2018 and 2016. Also, serves as Advisor for CENTRI Technology – Advanced Security for IoT and Atonomi – The Secure Ledger of Things. -
Research Staff MemberIbm Feb 2014 - May 2016Armonk, New York, Ny, UsContent Protection and Information Security group at IBM Research - AlmadenArchitect of identity management system for blockchain platform and compatible services that is suitable for meeting requirements of B2B transactions. Design and evaluation of cryptographic constructs for next generation security systems for applications including Media and Entertainment, e.g., next generation Advanced Access Content System (AACS) for UHD 4K Blu-ray content, and IoT devices. Active participation in technical conferences, such as program committee and panel member at IEEE Conference on Communications and Network Security M2M-Sec Workshop 2014, invited speaker at USAA TechX 2015, invited chair, speaker and panel member of Vehicle Innovation World 2015, and Technical Program Committee member of 2016 IEEE World Forum on Internet of Things. -
Chief CryptographerTrustcentral Nov 2011 - Jan 2014San Mateo, Ca, UsLead for cryptographic security and overall system robustness of cloud-based products in early-stage start-up company. Position included a strong intellectual property component. Concurrently with this position, served as expert witness for Stamps.com, engaged as patent portfolio consultant by RPX Corporation, and consulted for OneID and Silent Circle. Also member of SEMO Cybersecurity Advisory Board. -
Principal Member Of The Technical StaffCerticom Aug 2010 - Jul 2011Mississauga, Ontario, CaLead for standardization and research efforts developing new cryptographic primitives and employing these primitives to meet information security requirements in emerging application spaces like personal area and mobile networks. Certicom Corp. is a subsidiary of BlackBerry/Research in Motion (RIM) Limited. -
Fellow Of Technical StaffMotorola, Inc. Feb 2005 - Jul 2010Chicago, Illinois, UsCorporate-level technical lead for Digital Rights Management (DRM), including DRM robustness rules.Active participation in standards bodies, including DLNA Content Protection Subcommittee, Open Mobile Alliance (OMA)* (as contributor and Technical Specifications editor), and IEEE P1363 Public Key Cryptography Working Group; Program Committee: ACM DRM 2006.*Including major OMA DRM Working Group agreed contributions to OMA DRM v2.1, Secure Removable Media (SRM) and Secure Content Exchange (SCE) Technical Specifications (October 2005 – April 2009). Peer-reviewed papers related to this work presented at ACM DRM 2005, IEEE CCNC 2008, and Real-Life Cryptographic Protocols and Standardization workshop (RLCPS)/Financial Cryptography and Data Security 2010, and invited talk at UNM’s graduate seminar (April, 2008).DRM technical/strategic and patent review committee resource for Corporate, Mobile Devices business, and Connected Home Solutions/Home and Network Mobility.Information security technical resource for Government & Public Safety, and Enterprise businesses – security protocols, digital evidence integrity, digital data privacy, analytics.Intellectual property generation: 19 Motorola-filed patent applications. -
ConsultantInformation Security Systems, Inc. Dec 2004 - Jan 2005Us -
ConsultantWave Systems Corp. Nov 2001 - Jan 2005Austin, Tx, Us -
Chief ScientistWave Systems Corp. Sep 1999 - Oct 2001Austin, Tx, UsA Vice President level position entailing supervision of the technical security activities throughout the company, and briefing technology to prospective customers. Design and evaluation of security architecture, backend infrastructure, and trust management model for the hardware-device- and renewable-firmware- based EMBASSY (EMBedded Application Security SYstem) Trusted Client Platform; and integration of security applications, such as content metering, compliant playback, and smart card-assisted financial data handling, to ensure compatibility with the EMBASSY infrastructure.Program Committee and Digital Rights Management Panel: Financial Cryptography 2001. Moderator and Panelist: Trust Models and Responsibility in Embedded Security, Consortium for Efficient Embedded Security, July 2001. Reviewer for submissions to Information Processing Letters. Active participation in industry technical groups, including IEEE P1363 public-key cryptographic standards working group since June 1997.
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Chief Cryptographer, Orion Security SolutionsEntrust Datacard Jul 2004 - Nov 2004Minneapolis, Mn, UsConsultant in Type 1 Key Management and Authority Management, and commercial PKI.Involved in secure deployment of Federal Government Departmental PKI, including Root Key Generation, Certificate Policy, Certificate Practices Statement, and Compliance Analysis and Compliance Audit.Responsible for development of NIAP cryptographic conformance test suites.Validator for NIAP Common Criteria Evaluation and Validation Scheme. -
Chief ScientistSparta Sep 2002 - Jul 2004Colorado Springs, Co, UsSenior advisory position to federal government decision makers on technical measures to achieve robust security of information systems required to efficiently address multiple-community authenticated and encrypted data communications, and access-controlled archival storage.Design of advanced cryptographic key management architectures to effectively enable wide-scale key change deployment, compromise recovery measures, and high-availability assurance, relative to critical infrastructures and highly sensitive applications.Directly involved in successful renewal and extension of contracts. -
Expert WitnessRsa The Security Division Of Emc Nov 2002 - Jun 2003Burlington, Massachusetts, UsPrepared technical witness statements and testified on behalf of RSA Security Inc., in an International Chamber of Commerce (Paris, France) patent dispute arbitration brought against it by France Telecom and Telediffusion de France, in which RSA Security Inc. ultimately prevailed. -
Chief Scientist-Security Systems, Digital Video Express (Divx)Circuit City 1998 - 1999UsDesign of next-generation security system architectures and cryptographic protocols and modes suitable for incorporation into a conditional access module/smart card used in conjunction with a set-top box or PC, including the development of new constructs for hierarchical key management, keying of security tokens, verifier functionality for smart cards, secure logging, and watermark-based conditional access. -
Vice President, CertcoDeutsche Bank 1995 - 1997Frankfurt Am Main, Hessen, DeDesign of efficient patented (6,029,150) security architecture for Internet-based payment systems, working closely with software development teams to ensure compatibility of incorporated cryptography with customer, merchant, transaction processing and banking needs, while flexibly addressing varied marketing approaches and export-control issues – Gartner Research’s Avivah Litan said patent 6,029,150 is "incredibly broad. I know a lot of processors in the payment industry, and it could apply to each and every one of them."Developed new authorization framework. Directly involved in investment procurement and business development. -
Senior Member Of Technical StaffSandia National Laboratories 1993 - 1995Albuquerque, Nm, UsResearch, development, and analysis of cryptographic constructs and systems in the information surety areas of nuclear command and control, electronic commerce, and key escrow, including software versus hardware secure-implementation issues. -
Senior Technical AdvisorNational Security Agency 1982 - 1993Ft. Meade, Md, UsExtensive research and application involvement in the design and evaluation of US voice and data systems, secure terminals, and key management architectures. Technical chair of classified symposia. Sabbatical at Institute for Defense Analyses, Center for Communications Research, Princeton, NJ (1988-1991), during which tenure invented the Digital Signature Algorithm (DSA):The patented DSA (5,231,668) was incorporated as the basis of FIPS PUB 186, Digital Signature Standard (DSS), Federal Information Processing Standards Publication 186, U.S. Department of Commerce, National Institute of Standards and Technology, 1994, and as the basis of American National Standards Institute, ANSI X9.30.1-1997: Public-Key Cryptography for the Financial Services Industry - Part 1: The Digital Signature Algorithm (DSA), American Bankers Association, 1997. DSA, its elliptic curve analog, ECDSA, and RSA comprise the digital signature algorithms in NIST Digital Signature Standard FIPS PUB 186-4.
David W. Kravitz Skills
David W. Kravitz Education Details
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University Of Southern CaliforniaElectrical Engineering-Systems -
The Johns Hopkins UniversityMathematical Sciences
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Rutgers UniversityMathematics
Frequently Asked Questions about David W. Kravitz
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What schools did David W. Kravitz attend?
David W. Kravitz attended University Of Southern California, The Johns Hopkins University, Rutgers University.
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David W. Kravitz has skills like Cryptography, Information Security, Security, Pki, Computer Security, Encryption, Security Architecture Design, Network Security, Data Security, System Architecture, Application Security, Integration.
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