---
_id: '43458'
author:
- first_name: Johannes
full_name: Blömer, Johannes
id: '23'
last_name: Blömer
- first_name: Jan
full_name: Bobolz, Jan
id: '27207'
last_name: Bobolz
- first_name: Laurens Alexander
full_name: Porzenheim, Laurens Alexander
id: '47434'
last_name: Porzenheim
citation:
ama: 'Blömer J, Bobolz J, Porzenheim LA. A Generic Construction of an Anonymous
Reputation System and Instantiations from Lattices. In: ; 2023.'
apa: Blömer, J., Bobolz, J., & Porzenheim, L. A. (2023). A Generic Construction
of an Anonymous Reputation System and Instantiations from Lattices. Asiacrypt
2023, Guangzhou, China.
bibtex: '@inproceedings{Blömer_Bobolz_Porzenheim_2023, title={A Generic Construction
of an Anonymous Reputation System and Instantiations from Lattices}, author={Blömer,
Johannes and Bobolz, Jan and Porzenheim, Laurens Alexander}, year={2023} }'
chicago: Blömer, Johannes, Jan Bobolz, and Laurens Alexander Porzenheim. “A Generic
Construction of an Anonymous Reputation System and Instantiations from Lattices,”
2023.
ieee: J. Blömer, J. Bobolz, and L. A. Porzenheim, “A Generic Construction of an
Anonymous Reputation System and Instantiations from Lattices,” presented at the
Asiacrypt 2023, Guangzhou, China, 2023.
mla: Blömer, Johannes, et al. A Generic Construction of an Anonymous Reputation
System and Instantiations from Lattices. 2023.
short: 'J. Blömer, J. Bobolz, L.A. Porzenheim, in: 2023.'
conference:
end_date: 2023-12-08
location: Guangzhou, China
name: Asiacrypt 2023
start_date: 2023-12-04
date_created: 2023-04-12T08:18:41Z
date_updated: 2023-09-07T09:53:26Z
department:
- _id: '64'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://eprint.iacr.org/2023/464
oa: '1'
project:
- _id: '1'
grant_number: '160364472'
name: 'SFB 901: SFB 901'
- _id: '13'
name: 'SFB 901 - C1: SFB 901 - Subproject C1'
- _id: '4'
name: 'SFB 901 - C: SFB 901 - Project Area C'
status: public
title: A Generic Construction of an Anonymous Reputation System and Instantiations
from Lattices
type: conference
user_id: '47434'
year: '2023'
...
---
_id: '10306'
author:
- first_name: Laurens Alexander
full_name: Porzenheim, Laurens Alexander
id: '47434'
last_name: Porzenheim
citation:
ama: Porzenheim LA. Post-Quantum Secure Group Signatures.; 2019.
apa: Porzenheim, L. A. (2019). Post-Quantum Secure Group Signatures.
bibtex: '@book{Porzenheim_2019, title={Post-Quantum Secure Group Signatures}, author={Porzenheim,
Laurens Alexander}, year={2019} }'
chicago: Porzenheim, Laurens Alexander. Post-Quantum Secure Group Signatures,
2019.
ieee: L. A. Porzenheim, Post-Quantum Secure Group Signatures. 2019.
mla: Porzenheim, Laurens Alexander. Post-Quantum Secure Group Signatures.
2019.
short: L.A. Porzenheim, Post-Quantum Secure Group Signatures, 2019.
date_created: 2019-06-26T09:12:47Z
date_updated: 2022-01-06T06:50:36Z
ddc:
- '000'
department:
- _id: '64'
file:
- access_level: open_access
content_type: application/pdf
creator: laurensp
date_created: 2019-06-26T09:08:23Z
date_updated: 2019-06-26T09:19:15Z
file_id: '10307'
file_name: thesis_final.pdf
file_size: 899233
relation: main_file
file_date_updated: 2019-06-26T09:19:15Z
has_accepted_license: '1'
language:
- iso: eng
oa: '1'
status: public
supervisor:
- first_name: Johannes
full_name: Blömer, Johannes
id: '23'
last_name: Blömer
title: Post-Quantum Secure Group Signatures
type: mastersthesis
user_id: '47434'
year: '2019'
...
---
_id: '3265'
abstract:
- lang: eng
text: "We present CLARC (Cryptographic Library for Anonymous Reputation and Credentials),
an anonymous credentials system (ACS) combined with an anonymous reputation system.\r\n\r\nUsing
CLARC, users can receive attribute-based credentials from issuers. They can efficiently
prove that their credentials satisfy complex (access) policies in a privacy-preserving
way. This implements anonymous access control with complex policies.\r\n\r\nFurthermore,
CLARC is the first ACS that is combined with an anonymous reputation system where
users can anonymously rate services. A user who gets access to a service via a
credential, also anonymously receives a review token to rate the service. If a
user creates more than a single rating, this can be detected by anyone, preventing
users from spamming ratings to sway public opinion.\r\n\r\nTo evaluate feasibility
of our construction, we present an open-source prototype implementation."
author:
- first_name: Kai
full_name: Bemmann, Kai
last_name: Bemmann
- first_name: Johannes
full_name: Blömer, Johannes
id: '23'
last_name: Blömer
- first_name: Jan
full_name: Bobolz, Jan
id: '27207'
last_name: Bobolz
- first_name: Henrik
full_name: Bröcher, Henrik
id: '41047'
last_name: Bröcher
- first_name: Denis Pascal
full_name: Diemert, Denis Pascal
id: '44071'
last_name: Diemert
- first_name: Fabian
full_name: Eidens, Fabian
id: '25078'
last_name: Eidens
- first_name: Lukas
full_name: Eilers, Lukas
last_name: Eilers
- first_name: Jan Frederik
full_name: Haltermann, Jan Frederik
id: '44413'
last_name: Haltermann
- first_name: Jakob
full_name: Juhnke, Jakob
id: '48090'
last_name: Juhnke
- first_name: Burhan
full_name: Otour, Burhan
last_name: Otour
- first_name: Laurens Alexander
full_name: Porzenheim, Laurens Alexander
id: '47434'
last_name: Porzenheim
- first_name: Simon
full_name: Pukrop, Simon
last_name: Pukrop
- first_name: Erik
full_name: Schilling, Erik
last_name: Schilling
- first_name: Michael
full_name: Schlichtig, Michael
id: '32312'
last_name: Schlichtig
- first_name: Marcel
full_name: Stienemeier, Marcel
last_name: Stienemeier
citation:
ama: 'Bemmann K, Blömer J, Bobolz J, et al. Fully-Featured Anonymous Credentials
with Reputation System. In: Proceedings of the 13th International Conference
on Availability, Reliability and Security - ARES ’18. New York, NY, USA: ACM.
doi:10.1145/3230833.3234517'
apa: 'Bemmann, K., Blömer, J., Bobolz, J., Bröcher, H., Diemert, D. P., Eidens,
F., … Stienemeier, M. (n.d.). Fully-Featured Anonymous Credentials with Reputation
System. In Proceedings of the 13th International Conference on Availability,
Reliability and Security - ARES ’18. New York, NY, USA: ACM. https://doi.org/10.1145/3230833.3234517'
bibtex: '@inproceedings{Bemmann_Blömer_Bobolz_Bröcher_Diemert_Eidens_Eilers_Haltermann_Juhnke_Otour_et
al., place={New York, NY, USA}, title={Fully-Featured Anonymous Credentials with
Reputation System}, DOI={10.1145/3230833.3234517},
booktitle={Proceedings of the 13th International Conference on Availability, Reliability
and Security - ARES ’18}, publisher={ACM}, author={Bemmann, Kai and Blömer, Johannes
and Bobolz, Jan and Bröcher, Henrik and Diemert, Denis Pascal and Eidens, Fabian
and Eilers, Lukas and Haltermann, Jan Frederik and Juhnke, Jakob and Otour, Burhan
and et al.} }'
chicago: 'Bemmann, Kai, Johannes Blömer, Jan Bobolz, Henrik Bröcher, Denis Pascal
Diemert, Fabian Eidens, Lukas Eilers, et al. “Fully-Featured Anonymous Credentials
with Reputation System.” In Proceedings of the 13th International Conference
on Availability, Reliability and Security - ARES ’18. New York, NY, USA: ACM,
n.d. https://doi.org/10.1145/3230833.3234517.'
ieee: K. Bemmann et al., “Fully-Featured Anonymous Credentials with Reputation
System,” in Proceedings of the 13th International Conference on Availability,
Reliability and Security - ARES ’18, Hamburg, Germany.
mla: Bemmann, Kai, et al. “Fully-Featured Anonymous Credentials with Reputation
System.” Proceedings of the 13th International Conference on Availability,
Reliability and Security - ARES ’18, ACM, doi:10.1145/3230833.3234517.
short: 'K. Bemmann, J. Blömer, J. Bobolz, H. Bröcher, D.P. Diemert, F. Eidens, L.
Eilers, J.F. Haltermann, J. Juhnke, B. Otour, L.A. Porzenheim, S. Pukrop, E. Schilling,
M. Schlichtig, M. Stienemeier, in: Proceedings of the 13th International Conference
on Availability, Reliability and Security - ARES ’18, ACM, New York, NY, USA,
n.d.'
conference:
end_date: 2018-08-30
location: Hamburg, Germany
name: ARES 2018 - SECPID
start_date: 2018-08-27
date_created: 2018-06-14T11:19:29Z
date_updated: 2022-01-06T06:59:07Z
ddc:
- '000'
department:
- _id: '64'
doi: 10.1145/3230833.3234517
file:
- access_level: closed
content_type: application/pdf
creator: feidens
date_created: 2018-11-08T10:17:39Z
date_updated: 2018-11-08T10:17:39Z
file_id: '5428'
file_name: react_acs.pdf
file_size: 920843
relation: main_file
file_date_updated: 2018-11-08T10:17:39Z
has_accepted_license: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://eprint.iacr.org/2018/835
oa: '1'
place: New York, NY, USA
project:
- _id: '1'
name: SFB 901
- _id: '4'
name: SFB 901 - Project Area C
- _id: '13'
name: SFB 901 - Subproject C1
- _id: '44'
name: KogniHome - die mitdenkende Wohnung
publication: Proceedings of the 13th International Conference on Availability, Reliability
and Security - ARES '18
publication_identifier:
isbn:
- 978-1-4503-6448-5
publication_status: accepted
publisher: ACM
quality_controlled: '1'
related_material:
link:
- relation: software
url: https://github.com/upbcuk
status: public
title: Fully-Featured Anonymous Credentials with Reputation System
type: conference
user_id: '25078'
year: '2018'
...