Keep the Dirt: Tainted TreeKEM, Adaptively and Actively Secure Continuous Group Key Agreement

Autor: Ilia Markov, Chethan Kamath, Margarita Capretto, Michael Walter, Michelle Yeo, Guillermo Pascual-Perez, Joël Alwen, Miguel Cueto, Karen Klein, Krzysztof Pietrzak

Publikováno v: IEEE Symposium on Security and Privacy

While messaging systems with strong security guarantees are widely used in practice, designing a protocol that scales efficiently to large groups and enjoys similar security guarantees remains largely open. The two existing proposals to date are ART

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0c7b40231295bbc08960cf051d9c7fd5
https://doi.org/10.1109/sp40001.2021.00035

Grafting Key Trees: Efficient Key Management for Overlapping Groups

Autor: Krzysztof Pietrzak, Mirza Ahad Baig, Miguel Cueto Noval, Benedikt Auerbach, Guillermo Pascual-Perez, Joël Alwen, Michael Walter, Karen Klein

Publikováno v: Theory of Cryptography ISBN: 9783030904555
TCC (3)
Lecture Notes in Computer Science, 13044
Theory of Cryptography
Lecture Notes in Computer Science
Lecture Notes in Computer Science-Theory of Cryptography

Key trees are often the best solution in terms of transmission cost and storage requirements for managing keys in a setting where a group needs to share a secret key, while being able to efficiently rotate the key material of users (in order to recov

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9a2251ebd164ff9bba29fc08253b31b2
https://doi.org/10.1007/978-3-030-90456-2_8

A Practical Cryptanalysis of WalnutDSA$$^{\text {TM}}$$

Autor: Yuxuan Quek, Daniel Hart, Giacomo Micheli, Guillermo Pascual-Perez, DoHoon Kim, Christophe Petit

Publikováno v: Public-Key Cryptography – PKC 2018 ISBN: 9783319765778
Public Key Cryptography (1)

We present a practical cryptanalysis of WalnutDSA, a digital signature algorithm trademarked by SecureRF. WalnutDSA uses techniques from permutation groups, matrix groups and braid groups, and is designed to provide post-quantum security in lightweig

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::48bfbb895a67bf4122363028ed6573b1
https://doi.org/10.1007/978-3-319-76578-5_13