Joel F Alwen
Pietrzak Group
17 Publications
2021 | Conference Paper | IST-REx-ID: 10408 | 
Alwen, Joel F, Benedikt Auerbach, Mirza Ahad Baig, Miguel Cueto Noval, Karen Klein, Guillermo Pascual Perez, Krzysztof Z Pietrzak, and Michael Walter. “Grafting Key Trees: Efficient Key Management for Overlapping Groups.” In 19th International Conference, 13044:222–53. Springer Nature, 2021. https://doi.org/10.1007/978-3-030-90456-2_8.
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2021 | Conference Paper | IST-REx-ID: 10049 |
Klein, Karen, Guillermo Pascual Perez, Michael Walter, Chethan Kamath Hosdurg, Margarita Capretto, Miguel Cueto Noval, Ilia Markov, Michelle X Yeo, Joel F Alwen, and Krzysztof Z Pietrzak. “Keep the Dirt: Tainted TreeKEM, Adaptively and Actively Secure Continuous Group Key Agreement.” In 2021 IEEE Symposium on Security and Privacy , 268–84. IEEE, 2021. https://doi.org/10.1109/sp40001.2021.00035.
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2018 | Conference Paper | IST-REx-ID: 193 |
Alwen, Joel F, Peter Gazi, Chethan Kamath Hosdurg, Karen Klein, Georg F Osang, Krzysztof Z Pietrzak, Lenoid Reyzin, Michal Rolinek, and Michal Rybar. “On the Memory Hardness of Data Independent Password Hashing Functions.” In Proceedings of the 2018 on Asia Conference on Computer and Communication Security, 51–65. ACM, 2018. https://doi.org/10.1145/3196494.3196534.
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2018 | Conference Paper | IST-REx-ID: 298 |
Alwen, Joel F, Jeremiah Blocki, and Krzysztof Z Pietrzak. “Sustained Space Complexity,” 10821:99–130. Springer, 2018. https://doi.org/10.1007/978-3-319-78375-8_4.
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2018 | Conference Paper | IST-REx-ID: 6941 |
Park, Sunoo, Albert Kwon, Georg Fuchsbauer, Peter Gazi, Joel F Alwen, and Krzysztof Z Pietrzak. “SpaceMint: A Cryptocurrency Based on Proofs of Space.” In 22nd International Conference on Financial Cryptography and Data Security, 10957:480–99. Springer Nature, 2018. https://doi.org/10.1007/978-3-662-58387-6_26.
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2017 | Conference Paper | IST-REx-ID: 1175 |
Alwen, Joel F, Susanna De Rezende, Jakob Nordstrom, and Marc Vinyals. “Cumulative Space in Black-White Pebbling and Resolution.” edited by Christos Papadimitriou, 67:38:1-38-21. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2017. https://doi.org/10.4230/LIPIcs.ITCS.2017.38.
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2017 | Conference Paper | IST-REx-ID: 609 |
Alwen, Joel F, and Björn Tackmann. “Moderately Hard Functions: Definition, Instantiations, and Applications.” edited by Yael Kalai and Leonid Reyzin, 10677:493–526. Springer, 2017. https://doi.org/10.1007/978-3-319-70500-2_17.
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2017 | Conference Paper | IST-REx-ID: 635 |
Alwen, Joel F, Binchi Chen, Krzysztof Z Pietrzak, Leonid Reyzin, and Stefano Tessaro. “Scrypt Is Maximally Memory Hard.” edited by Jean-Sébastien Coron and Jesper Buus Nielsen, 10212:33–62. Springer, 2017. https://doi.org/10.1007/978-3-319-56617-7_2.
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2017 | Conference Paper | IST-REx-ID: 640 |
Alwen, Joel F, Jeremiah Blocki, and Krzysztof Z Pietrzak. “Depth-Robust Graphs and Their Cumulative Memory Complexity.” edited by Jean-Sébastien Coron and Jesper Buus Nielsen, 10212:3–32. Springer, 2017. https://doi.org/10.1007/978-3-319-56617-7_1.
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2017 | Conference Paper | IST-REx-ID: 6527 |
Alwen, Joel F, Jeremiah Blocki, and Ben Harsha. “Practical Graphs for Optimal Side-Channel Resistant Memory-Hard Functions.” In Proceedings of the 2017 ACM SIGSAC Conference on Computer and Communications Security, 1001–17. ACM Press, 2017. https://doi.org/10.1145/3133956.3134031.
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2017 | Conference Paper | IST-REx-ID: 559 |
Abusalah, Hamza M, Joel F Alwen, Bram Cohen, Danylo Khilko, Krzysztof Z Pietrzak, and Leonid Reyzin. “Beyond Hellman’s Time-Memory Trade-Offs with Applications to Proofs of Space,” 10625:357–79. Springer, 2017. https://doi.org/10.1007/978-3-319-70697-9_13.
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2017 | Conference Paper | IST-REx-ID: 1176 |
Alwen, Joel F, and Jeremiah Blocki. “Towards Practical Attacks on Argon2i and Balloon Hashing.” IEEE, 2017. https://doi.org/10.1109/EuroSP.2017.47.
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2016 | Conference Paper | IST-REx-ID: 1231 |
Alwen, Joel F, Binyi Chen, Chethan Kamath Hosdurg, Vladimir Kolmogorov, Krzysztof Z Pietrzak, and Stefano Tessaro. “On the Complexity of Scrypt and Proofs of Space in the Parallel Random Oracle Model,” 9666:358–87. Springer, 2016. https://doi.org/10.1007/978-3-662-49896-5_13.
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2016 | Conference Paper | IST-REx-ID: 1365 |
Alwen, Joel F, and Jeremiah Blocki. “Efficiently Computing Data-Independent Memory-Hard Functions,” 9815:241–71. Springer, 2016. https://doi.org/10.1007/978-3-662-53008-5_9.
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2015 | Conference Paper | IST-REx-ID: 1652 |
Alwen, Joel F, and Vladimir Serbinenko. “High Parallel Complexity Graphs and Memory-Hard Functions.” In Proceedings of the 47th Annual ACM Symposium on Theory of Computing, 595–603. ACM, 2015. https://doi.org/10.1145/2746539.2746622.
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2015 | Conference Paper | IST-REx-ID: 1672 |
Alwen, Joel F, Rafail Ostrovsky, Hongsheng Zhou, and Vassilis Zikas. “Incoercible Multi-Party Computation and Universally Composable Receipt-Free Voting.” In Advances in Cryptology - CRYPTO 2015, 9216:763–80. Lecture Notes in Computer Science. Springer, 2015. https://doi.org/10.1007/978-3-662-48000-7_37.
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2013 | Conference Paper | IST-REx-ID: 2259 |
Alwen, Joel F, Stephan Krenn, Krzysztof Z Pietrzak, and Daniel Wichs. “Learning with Rounding, Revisited: New Reduction Properties and Applications.” Lecture Notes in Computer Science. Springer, 2013. https://doi.org/10.1007/978-3-642-40041-4_4.
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17 Publications
2021 | Conference Paper | IST-REx-ID: 10408 |
Alwen, Joel F, Benedikt Auerbach, Mirza Ahad Baig, Miguel Cueto Noval, Karen Klein, Guillermo Pascual Perez, Krzysztof Z Pietrzak, and Michael Walter. “Grafting Key Trees: Efficient Key Management for Overlapping Groups.” In 19th International Conference, 13044:222–53. Springer Nature, 2021. https://doi.org/10.1007/978-3-030-90456-2_8.
[Preprint]
View
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| Download Preprint (ext.)
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2021 | Conference Paper | IST-REx-ID: 10049 |
Klein, Karen, Guillermo Pascual Perez, Michael Walter, Chethan Kamath Hosdurg, Margarita Capretto, Miguel Cueto Noval, Ilia Markov, Michelle X Yeo, Joel F Alwen, and Krzysztof Z Pietrzak. “Keep the Dirt: Tainted TreeKEM, Adaptively and Actively Secure Continuous Group Key Agreement.” In 2021 IEEE Symposium on Security and Privacy , 268–84. IEEE, 2021. https://doi.org/10.1109/sp40001.2021.00035.
[Preprint]
View
| Files available
| DOI
| Download Preprint (ext.)
2018 | Conference Paper | IST-REx-ID: 193 |
Alwen, Joel F, Peter Gazi, Chethan Kamath Hosdurg, Karen Klein, Georg F Osang, Krzysztof Z Pietrzak, Lenoid Reyzin, Michal Rolinek, and Michal Rybar. “On the Memory Hardness of Data Independent Password Hashing Functions.” In Proceedings of the 2018 on Asia Conference on Computer and Communication Security, 51–65. ACM, 2018. https://doi.org/10.1145/3196494.3196534.
[Submitted Version]
View
| DOI
| Download Submitted Version (ext.)
| WoS
2018 | Conference Paper | IST-REx-ID: 298 |
Alwen, Joel F, Jeremiah Blocki, and Krzysztof Z Pietrzak. “Sustained Space Complexity,” 10821:99–130. Springer, 2018. https://doi.org/10.1007/978-3-319-78375-8_4.
[Preprint]
View
| DOI
| Download Preprint (ext.)
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| arXiv
2018 | Conference Paper | IST-REx-ID: 6941 |
Park, Sunoo, Albert Kwon, Georg Fuchsbauer, Peter Gazi, Joel F Alwen, and Krzysztof Z Pietrzak. “SpaceMint: A Cryptocurrency Based on Proofs of Space.” In 22nd International Conference on Financial Cryptography and Data Security, 10957:480–99. Springer Nature, 2018. https://doi.org/10.1007/978-3-662-58387-6_26.
[Submitted Version]
View
| DOI
| Download Submitted Version (ext.)
| WoS
2017 | Conference Paper | IST-REx-ID: 1175 |
Alwen, Joel F, Susanna De Rezende, Jakob Nordstrom, and Marc Vinyals. “Cumulative Space in Black-White Pebbling and Resolution.” edited by Christos Papadimitriou, 67:38:1-38-21. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2017. https://doi.org/10.4230/LIPIcs.ITCS.2017.38.
[Published Version]
View
| Files available
| DOI
2017 | Conference Paper | IST-REx-ID: 609 |
Alwen, Joel F, and Björn Tackmann. “Moderately Hard Functions: Definition, Instantiations, and Applications.” edited by Yael Kalai and Leonid Reyzin, 10677:493–526. Springer, 2017. https://doi.org/10.1007/978-3-319-70500-2_17.
[Submitted Version]
View
| DOI
| Download Submitted Version (ext.)
2017 | Conference Paper | IST-REx-ID: 635 |
Alwen, Joel F, Binchi Chen, Krzysztof Z Pietrzak, Leonid Reyzin, and Stefano Tessaro. “Scrypt Is Maximally Memory Hard.” edited by Jean-Sébastien Coron and Jesper Buus Nielsen, 10212:33–62. Springer, 2017. https://doi.org/10.1007/978-3-319-56617-7_2.
[Submitted Version]
View
| DOI
| Download Submitted Version (ext.)
2017 | Conference Paper | IST-REx-ID: 640 |
Alwen, Joel F, Jeremiah Blocki, and Krzysztof Z Pietrzak. “Depth-Robust Graphs and Their Cumulative Memory Complexity.” edited by Jean-Sébastien Coron and Jesper Buus Nielsen, 10212:3–32. Springer, 2017. https://doi.org/10.1007/978-3-319-56617-7_1.
[Submitted Version]
View
| DOI
| Download Submitted Version (ext.)
2017 | Conference Paper | IST-REx-ID: 6527 |
Alwen, Joel F, Jeremiah Blocki, and Ben Harsha. “Practical Graphs for Optimal Side-Channel Resistant Memory-Hard Functions.” In Proceedings of the 2017 ACM SIGSAC Conference on Computer and Communications Security, 1001–17. ACM Press, 2017. https://doi.org/10.1145/3133956.3134031.
[Submitted Version]
View
| DOI
| Download Submitted Version (ext.)
2017 | Conference Paper | IST-REx-ID: 559 |
Abusalah, Hamza M, Joel F Alwen, Bram Cohen, Danylo Khilko, Krzysztof Z Pietrzak, and Leonid Reyzin. “Beyond Hellman’s Time-Memory Trade-Offs with Applications to Proofs of Space,” 10625:357–79. Springer, 2017. https://doi.org/10.1007/978-3-319-70697-9_13.
[Submitted Version]
View
| Files available
| DOI
| Download Submitted Version (ext.)
2017 | Conference Paper | IST-REx-ID: 1176 |
Alwen, Joel F, and Jeremiah Blocki. “Towards Practical Attacks on Argon2i and Balloon Hashing.” IEEE, 2017. https://doi.org/10.1109/EuroSP.2017.47.
[Submitted Version]
View
| DOI
| Download Submitted Version (ext.)
| WoS
2016 | Conference Paper | IST-REx-ID: 1231 |
Alwen, Joel F, Binyi Chen, Chethan Kamath Hosdurg, Vladimir Kolmogorov, Krzysztof Z Pietrzak, and Stefano Tessaro. “On the Complexity of Scrypt and Proofs of Space in the Parallel Random Oracle Model,” 9666:358–87. Springer, 2016. https://doi.org/10.1007/978-3-662-49896-5_13.
[Submitted Version]
View
| DOI
| Download Submitted Version (ext.)
2016 | Conference Paper | IST-REx-ID: 1365 |
Alwen, Joel F, and Jeremiah Blocki. “Efficiently Computing Data-Independent Memory-Hard Functions,” 9815:241–71. Springer, 2016. https://doi.org/10.1007/978-3-662-53008-5_9.
[Preprint]
View
| DOI
| Download Preprint (ext.)
2015 | Conference Paper | IST-REx-ID: 1652 |
Alwen, Joel F, and Vladimir Serbinenko. “High Parallel Complexity Graphs and Memory-Hard Functions.” In Proceedings of the 47th Annual ACM Symposium on Theory of Computing, 595–603. ACM, 2015. https://doi.org/10.1145/2746539.2746622.
[Submitted Version]
View
| DOI
| Download Submitted Version (ext.)
2015 | Conference Paper | IST-REx-ID: 1672 |
Alwen, Joel F, Rafail Ostrovsky, Hongsheng Zhou, and Vassilis Zikas. “Incoercible Multi-Party Computation and Universally Composable Receipt-Free Voting.” In Advances in Cryptology - CRYPTO 2015, 9216:763–80. Lecture Notes in Computer Science. Springer, 2015. https://doi.org/10.1007/978-3-662-48000-7_37.
[Submitted Version]
View
| Files available
| DOI
2013 | Conference Paper | IST-REx-ID: 2259 |
Alwen, Joel F, Stephan Krenn, Krzysztof Z Pietrzak, and Daniel Wichs. “Learning with Rounding, Revisited: New Reduction Properties and Applications.” Lecture Notes in Computer Science. Springer, 2013. https://doi.org/10.1007/978-3-642-40041-4_4.
[Published Version]
View
| Files available
| DOI