Privacy-Enhancing Cryptography

Special Topics on Privacy and Public Auditability

The “Special Topics on Privacy and Public Auditability” (STPPA) series is organized by the Privacy Enhancing Cryptography (PEC) project in the Cryptographic Technology Group at NIST-ITL-CSD. A main goal of the series is to gather reference material about "PEC tools", which may facilitate future reflections on aspects of standardization and of development of recommendations/guidelines about advanced cryptography, namely for uses related to privacy and public auditability. Each event will include talks on various interconnected topics, aiming to convey basic technical background, incite curiosity, suggest research questions and discuss applications, with an emphasis on the role of cryptographic tools.

Attendance in each event is open and free to the public, but requires registration. Questions, comments or feedback can be sent to "pec-stppa at nist dot gov". Below is a list of past or scheduled events, with links to further details.

Event 06 (2023-Jul-25): ZKP, MPC, FHE, ABE, and others

Event details (abstracts, bios, registration): https://csrc.nist.gov/events/2023/stppa6

Theme: Community efforts on advanced cryptography techniques

Featured topics: ZKP, MPC, FHE, ABE and others.

Time and place: July 25^th, 2023, 09:30–15:30 EDT @ virtual event by video conference.

Structure: welcome; six invited talks; panel conversation.

Attendance: open and free to the public, upon registration.

Metadata	Video
Title: *STPPA#6 Welcome and Introduction* Approximate start time: 09:35 EDT Media: [Abstract] [Slides] [Video]
Title: The HomomorphicEncryption.org Community and the Applied Fully Homomorphic Encryption Standardization Efforts Speaker: Kurt Rohloff (Duality Technologies) Approximate start time: 10:00 EDT Media: [Abstract] [Slides] [Video]
Title: Industry Adoption and Standardization Efforts by the MPC Alliance and its Members Speaker: Andrei Lapets (MPC Alliance and Magnite) Approximate start time: 10:30 EDT Media: [Abstract] [Slides] [Video]
Title: The ZKProof Process Towards Standardising Zero-Knowledge Speaker: Mary Maller (Ethereum Foundation and PQShield) Approximate start time: 11:15 EDT Media: [Abstract] [Slides] [Video]
Title: Cryptographic access control by attributes — ongoing standards development at ETSI Speakers: Giovanni Bartolomeo (Consorzio Nazionale Interuniversitario per le Telecomunicazioni) and Paola de Perthuis (Cosmian and École Normale Supérieure de Paris) Approximate start time: 11:45 EDT Media: [Abstract] [Slides] [Video]
Title: Specifying Cryptography for use in Internet Protocols at the CFRG: Current Efforts Speaker: Nick Sullivan (Cryptography Consulting LLC) Approximate start time: 12:45 EDT Media: [Abstract] [Slides] [Video]
Title: Efforts on Standardizing Fully Homomorphic Encryption at ISO/IEC Speaker: Rosario Cammarota (Intel Labs) Approximate start time: 13:15 EDT Media: [Abstract] [Slides and video to appear soon]
Title: Panel Conversation on Community Efforts on Advanced Cryptography Panelists (speakers from previous talks): Kurt Rohloff (Duality Technologies), Andrei Lapets (MPC Alliance and Magnite), Mary Maller (Ethereum Foundation and PQShield), Giovanni Bartolomeo (Consorzio Nazionale Interuniversitario per le Telecomunicazioni), Nick Sullivan (Cryptography Consulting LLC), Rosario Cammarota (Intel Labs). Moderator (from the NIST-PEC team): Luís T. A. N. Brandão (NIST/Strativia). Approximate start time: 14:05 EDT Media: [Abstract] [Slide] [Video to appear soon]

Event 05 (2023-Feb-09): IBE, ABE, and broadcast encryption

Event details (abstracts, bios, registration): https://csrc.nist.gov/events/2023/stppa5

Featured topics: identity-based encryption (IBE), attribute-based encryption (ABE), and broadcast encryption.

Time and place: February 9^th, 2023, 12:00–16:00 EST @ virtual event by video conference.

Structure: welcome; three invited talks; panel conversation.

Attendance: open and free to the public, upon registration.

Metadata	Video
Title: *STPPA#5 Welcome and Introduction* Approximate start time: 12:00 EST Media: [Abstract] [Slides] [Video]
Title: Identity Based Encryption: an Overview Speaker: Dan Boneh (Standford University) Approximate start time: 12:10 EST Media: [Abstract] [Slides] [Video]
Title: Attribute-Based Encryption, Variants, and Pairing-Based Instantiations Speaker: Melissa Chase (Microsoft Research) Approximate start time: 13:00 EST Media: [Abstract] [Slides] [Video]
Title: *Attribute-Based and Broadcast Encryption from Lattices* Speaker: Hoeteck Wee (NTT Research) Approximate start time: 14:10 EST Media: [Abstract] [Slides] [Video]
Title: STPPA5 panel conversation on IBE, ABE and broasdcast encryption Panelists: Dan Boneh (Stanford University), Melissa Chase (Microsoft Research), Tanya Verma (Cloudflare), Hoeteck Wee (NTT Research). Moderators (the NIST-PEC team): Luís T. A. N. Brandão (NIST/Strativia), René Peralta (NIST), Angela Robinson (NIST). Approximate start time: 15:00 EST Media: [Abstract] [Slide] [Video]

Event 04 (2022-Nov-21): anonymous credentials, and blind signatures

Event details (abstracts, bios, registration): https://csrc.nist.gov/events/2022/stppa4

Featured topics: private authentication, blind signatures, anonymous credentials.

Time and place: November 21^st, 2022, 09:00–12:30 EDT @ virtual event by video conference.

Structure: welcome; three invited talks; panel conversation.

Attendance: open and free to the public, upon registration.

Metadata	Video
Title: *STPPA#4 Welcome* Approximate start time: 09:00 EST Media: [Abstract] [Slides] [Video]
Title: *Anonymous credentials* Speaker: Anna Lysyanskaya (Brown University) Approximate start time: 09:10 EST Media: [Abstract] [Slides] [Video]
Title: *Blind Signatures: Past, Present, and Future* Speaker: Julian Loss (CISPA, Germany) Approximate start time: 10:00 EST Media: [Abstract] [Slides] [Video]
Title: *Challenges and new Features for Anonymous Credentials: Revocation and Decentralization* Speaker: Foteini Baldimtsi (George Mason University) Approximate start time: 10:55 EST Media: [Abstract] [Slides] [Video]
Title: Panel: PEC for privacy and public auditability Panelists (the invited speakers): Foteini Baldimtsi (George Mason University), Julian Loss (CISPA, Germany), Anna Lysyanskaya (Brown University) Moderators (the PEC team): Luís T. A. N. Brandão (NIST/Strativia), René Peralta (NIST), Angela Robinson (NIST) Approximate start time: 11:40 EST Media: [Abstract] [Slide] [Video]

Event 03 (2021-Jul-06): PIR, encrypted search, and FHE

Event details (abstracts, bios, registration): https://csrc.nist.gov/events/2021/stppa3

Time and place: July 6^th, 2021, 13:30–16:45 EDT @ virtual event by video conference

Featured topics: private information retrieval (PIR), encrypted search, fully homomorphic encryption (FHE)

Structure: welcome; three invited talks; panel conversation

Metadata	Video
Title: *STPPA#3 Welcome* Approximate start time: 13:30 EDT Media: [Abstract] [Slides] [Video]
Title: *Private Information Retrieval with Near-Optimal Online Bandwidth and Time* Speaker: Elaine Shi (Carnegie Mellon University) Approximate start time: 13:40 EDT Media: [Abstract] [Slides] [Video]
Title: Encrypted Search Speaker: Seny Kamara (Brown University) Approximate start time: 14:25 EDT Media: [Abstract] [Slides] [Video]
Title: Private AI: Machine Learning on Encrypted Data Speaker: Kristin Lauter (Facebook AI Research) Approximate start time: 15:15 EDT Media: [Abstract] [Slides] [Video]
Title: Panel: PEC for privacy and public auditability Panelists (the invited speakers): Seny Kamara (Brown University); Kristin Lauter (Facebook AI Research); Elaine Shi (Carnegie Mellon University) Moderators (the PEC team): Luís Brandão (NIST/Strativia), René Peralta (NIST), Angela Robinson (NIST) Approximate start time: 16:05 EDT Media: [Abstract] [Slide] [Video]

Event 02 (2021-Apr-19): PSI, and MPC

Event details (abstracts, bios, registration): https://csrc.nist.gov/Events/2021/stppa2

Time and place: April 19^th, 2021, 13:00–16:00 EDT @ virtual event by video conference

Featured topics: private set intersection, secure multi-party computation.

Structure: introduction; two invited talks; panel conversation

Metadata:	Video
Title: STPPA#2 Intro: Brief comments on PEC and STPPA Speaker: Luís Brandão (NIST/Strativia). Approximate start time: 13:05 EDT Media: [Abstract] [Slides] [Video]
Title: *A Brief Overview of Private Set Intersection* Speaker: Mike Rosulek (Oregon State University) Approximate start time: 13:15 EDT Media: [Abstract] [Slides] [Video]
Title: Secure computation on datasets Speakers: Steve Lu (Stealth Software Technologies) and Rafail Ostrovsky (UCLA) Approximate start time: 13:55 EDT Media: [Abstract] [Slides] [Video]
Title: *Panel: PEC for privacy and public auditability* Panelists (the invited speakers): Steve Lu (Stealth Software Technologies), Rafail Ostrovsky (UCLA) and Mike Rosulek (Oregon State University) Moderators (the PEC team): Luís Brandão (NIST/Strativia), René Peralta (NIST), Angela Robinson (NIST) Approximate start time: 15:10 EDT Media: [Abstract] [Slide] [Video]

(Note: The original schedule had planned an additional talk, which was postponed to a future event.)

Event 01 (2020-Jan-27): public rand., diff. privacy, and video time-auth.

Event details: https://csrc.nist.gov/Events/2020/stppa1

Featured topics: public randomness and auditability; differential privacy; census data; video time-authentication.

Time and place: January 27^th, 2020, 10:00–15:00 EST @ NIST Gaithersburg (Building 101, Lecture room B)

Metadata	Video
Title: Randomness beacons as enablers of public auditability Speaker: Luís Brandão (NIST) Approximate start time: 10:15 EST Media: [Abstract] [Slides] [Video]
Title: De-Identification and Differential Privacy Speaker: Simson Garfinkel (U.S. Census Bureau) Approximate start time: 10:45 EST Media: [Abstract] [Slides] [Video]
Title: Deploying differential privacy for the 2020 census of population and housing (Impromptu alternative to "Differential Privacy at the US Census Bureau: Status Report") Speaker: Simson Garfinkel (U.S. Census Bureau) Approximate start time: 11:45 EST Media: [Abstract] [Slides] (alternative slide-deck "...: status report") and [Video]
Title: What math and physics can do to combat fake videos Speaker: Charles Bennett (IBM Research) Approximate start time: 14:00 EST Media: [Abstract] [Video]