92 Publications

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[92]
2021 | Conference Paper | IST-REx-ID: 10041 | OA
Limits on the Adaptive Security of Yao’s Garbling
C. Kamath Hosdurg, K. Klein, K.Z. Pietrzak, D. Wichs, in:, 41st Annual International Cryptology Conference, Part II , Springer Nature, Cham, 2021, pp. 486–515.
View | Files available | DOI | Download Preprint (ext.)
 
[91]
2021 | Conference Paper | IST-REx-ID: 10044 | OA
On treewidth, separators and Yao's garbling
C. Kamath Hosdurg, K. Klein, K.Z. Pietrzak, in:, 19th Theory of Cryptography Conference 2021, International Association for Cryptologic Research, n.d.
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[90]
2021 | Conference Paper | IST-REx-ID: 10048 | OA
The cost of adaptivity in security games on graphs
C. Kamath Hosdurg, K. Klein, K.Z. Pietrzak, M. Walter, in:, 19th Theory of Cryptography Conference 2021, International Association for Cryptologic Research, n.d.
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[89]
2021 | Conference Paper | IST-REx-ID: 10049 | OA
Keep the dirt: tainted TreeKEM, adaptively and actively secure continuous group key agreement
K. Klein, G. Pascual Perez, M. Walter, C. Kamath Hosdurg, M. Capretto, M. Cueto Noval, I. Markov, M.X. Yeo, J.F. Alwen, K.Z. Pietrzak, in:, 2021 IEEE Symposium on Security and Privacy , IEEE, 2021, pp. 268–284.
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[88]
2021 | Conference Paper | IST-REx-ID: 9826
Inverse-Sybil attacks in automated contact tracing
B. Auerbach, S. Chakraborty, K. Klein, G. Pascual Perez, K.Z. Pietrzak, M. Walter, M.X. Yeo, in:, Topics in Cryptology – CT-RSA 2021, Springer Nature, 2021, pp. 399–421.
View | DOI
 
[87]
2021 | Conference Paper | IST-REx-ID: 9969 | OA
LightPIR: Privacy-preserving route discovery for payment channel networks
K.Z. Pietrzak, I. Salem, S. Schmid, M.X. Yeo, in:, IEEE, 2021.
View | DOI | Download Submitted Version (ext.) | arXiv
 
[86]
2020 | Conference Paper | IST-REx-ID: 8987 | OA
Delayed authentication: Preventing replay and relay attacks in private contact tracing
K.Z. Pietrzak, in:, Progress in Cryptology, Springer Nature, 2020, pp. 3–15.
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[85]
2019 | Conference Paper | IST-REx-ID: 6430 | OA
Adaptively secure proxy re-encryption
G. Fuchsbauer, C. Kamath Hosdurg, K. Klein, K.Z. Pietrzak, in:, Springer Nature, 2019, pp. 317–346.
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[84]
2019 | Conference Paper | IST-REx-ID: 6528 | OA
Simple verifiable delay functions
K.Z. Pietrzak, in:, 10th Innovations in Theoretical Computer Science Conference, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2019.
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[83]
2019 | Conference Paper | IST-REx-ID: 6677 | OA
Finding a Nash equilibrium is no easier than breaking Fiat-Shamir
A.R. Choudhuri, P. Hubáček, C. Kamath Hosdurg, K.Z. Pietrzak, A. Rosen, G.N. Rothblum, in:, Proceedings of the 51st Annual ACM SIGACT Symposium on Theory of Computing  - STOC 2019, ACM Press, 2019, pp. 1103–1114.
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[82]
2019 | Conference Paper | IST-REx-ID: 7411 | OA
Reversible proofs of sequential work
H.M. Abusalah, C. Kamath Hosdurg, K. Klein, K.Z. Pietrzak, M. Walter, in:, Advances in Cryptology – EUROCRYPT 2019, Springer International Publishing, 2019, pp. 277–291.
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[81]
2018 | Conference Paper | IST-REx-ID: 298 | OA
Sustained space complexity
J.F. Alwen, J. Blocki, K.Z. Pietrzak, in:, Springer, 2018, pp. 99–130.
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[80]
2018 | Conference Paper | IST-REx-ID: 302 | OA
Simple proofs of sequential work
B. Cohen, K.Z. Pietrzak, in:, Springer, 2018, pp. 451–467.
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[79]
2018 | Conference Paper | IST-REx-ID: 6941 | OA
SpaceMint: A cryptocurrency based on proofs of space
S. Park, A. Kwon, G. Fuchsbauer, P. Gazi, J.F. Alwen, K.Z. Pietrzak, in:, 22nd International Conference on Financial Cryptography and Data Security, Springer Nature, 2018, pp. 480–499.
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[78]
2018 | Conference Paper | IST-REx-ID: 7407 | OA
Proofs of catalytic space
K.Z. Pietrzak, in:, 10th Innovations in Theoretical Computer Science  Conference (ITCS 2019), Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2018, p. 59:1-59:25.
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[77]
2018 | Conference Paper | IST-REx-ID: 193 | OA
On the memory hardness of data independent password hashing functions
J.F. Alwen, P. Gazi, C. Kamath Hosdurg, K. Klein, G.F. Osang, K.Z. Pietrzak, L. Reyzin, M. Rolinek, M. Rybar, in:, Proceedings of the 2018 on Asia Conference on Computer and Communication Security, ACM, 2018, pp. 51–65.
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[76]
2018 | Journal Article | IST-REx-ID: 107 | OA
Non-malleable codes
S. Dziembowski, K.Z. Pietrzak, D. Wichs, Journal of the ACM 65 (2018).
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[75]
2017 | Journal Article | IST-REx-ID: 6196 | OA
The exact security of PMAC
P. Gazi, K.Z. Pietrzak, M. Rybar, IACR Transactions on Symmetric Cryptology 2016 (2017) 145–161.
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[74]
2017 | Conference Paper | IST-REx-ID: 635 | OA
Scrypt is maximally memory hard
J.F. Alwen, B. Chen, K.Z. Pietrzak, L. Reyzin, S. Tessaro, in:, J.-S. Coron, J. Buus Nielsen (Eds.), Springer, 2017, pp. 33–62.
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[73]
2017 | Conference Paper | IST-REx-ID: 637 | OA
Be adaptive avoid overcommitting
Z. Jafargholi, C. Kamath Hosdurg, K. Klein, I. Komargodski, K.Z. Pietrzak, D. Wichs, in:, J. Katz, H. Shacham (Eds.), Springer, 2017, pp. 133–163.
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[72]
2017 | Conference Paper | IST-REx-ID: 640 | OA
Depth-robust graphs and their cumulative memory complexity
J.F. Alwen, J. Blocki, K.Z. Pietrzak, in:, J.-S. Coron, J. Buus Nielsen (Eds.), Springer, 2017, pp. 3–32.
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[71]
2017 | Conference Paper | IST-REx-ID: 697 | OA
Non uniform attacks against pseudoentropy
K.Z. Pietrzak, M. Skórski, in:, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2017.
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[70]
2017 | Conference Paper | IST-REx-ID: 559 | OA
Beyond Hellman’s time-memory trade-offs with applications to proofs of space
H.M. Abusalah, J.F. Alwen, B. Cohen, D. Khilko, K.Z. Pietrzak, L. Reyzin, in:, Springer, 2017, pp. 357–379.
View | Files available | DOI | Download Submitted Version (ext.)
 
[69]
2017 | Conference Paper | IST-REx-ID: 605 | OA
Position based cryptography and multiparty communication complexity
J. Brody, S. Dziembowski, S. Faust, K.Z. Pietrzak, in:, Y. Kalai, L. Reyzin (Eds.), Springer, 2017, pp. 56–81.
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[68]
2017 | Journal Article | IST-REx-ID: 1187 | OA
Efficient authentication from hard learning problems
E. Kiltz, K.Z. Pietrzak, D. Venturi, D. Cash, A. Jain, Journal of Cryptology 30 (2017) 1238–1275.
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[67]
2016 | Conference Paper | IST-REx-ID: 1653 | OA
New realizations of somewhere statistically binding hashing and positional accumulators
T. Okamoto, K.Z. Pietrzak, B. Waters, D. Wichs, in:, Springer, 2016, pp. 121–145.
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[66]
2016 | Conference Paper | IST-REx-ID: 1229 | OA
Offline witness encryption
H.M. Abusalah, G. Fuchsbauer, K.Z. Pietrzak, in:, Springer, 2016, pp. 285–303.
View | Files available | DOI
 
[65]
2016 | Conference Paper | IST-REx-ID: 1231 | OA
On the complexity of scrypt and proofs of space in the parallel random oracle model
J.F. Alwen, B. Chen, C. Kamath Hosdurg, V. Kolmogorov, K.Z. Pietrzak, S. Tessaro, in:, Springer, 2016, pp. 358–387.
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[64]
2016 | Conference Paper | IST-REx-ID: 1233 | OA
Standard security does imply security against selective opening for markov distributions
G. Fuchsbauer, F. Heuer, E. Kiltz, K.Z. Pietrzak, in:, Springer, 2016, pp. 282–305.
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[63]
2016 | Conference Paper | IST-REx-ID: 1236 | OA
Constrained PRFs for unbounded inputs
H.M. Abusalah, G. Fuchsbauer, K.Z. Pietrzak, in:, Springer, 2016, pp. 413–428.
View | Files available | DOI
 
[62]
2016 | Journal Article | IST-REx-ID: 1479 | OA
A counterexample to the chain rule for conditional HILL entropy
S. Krenn, K.Z. Pietrzak, A. Wadia, D. Wichs, Computational Complexity 25 (2016) 567–605.
View | Files available | DOI
 
[61]
2016 | Conference Paper | IST-REx-ID: 1179 | OA
Pseudoentropy: Lower-bounds for chain rules and transformations
K.Z. Pietrzak, S. Maciej, in:, Springer, 2016, pp. 183–203.
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[60]
2015 | Conference Paper | IST-REx-ID: 1646 | OA
Key-homomorphic constrained pseudorandom functions
A. Banerjee, G. Fuchsbauer, C. Peikert, K.Z. Pietrzak, S. Stevens, 9015 (2015) 31–60.
View | Files available | DOI
 
[59]
2015 | Conference Paper | IST-REx-ID: 1648 | OA
A quasipolynomial reduction for generalized selective decryption on trees
G. Fuchsbauer, Z. Jafargholi, K.Z. Pietrzak, in:, Springer, 2015, pp. 601–620.
View | Files available | DOI
 
[58]
2015 | Conference Paper | IST-REx-ID: 1649 | OA
Efficient zero-knowledge proofs for commitments from learning with errors over rings
F. Benhamouda, S. Krenn, V. Lyubashevsky, K.Z. Pietrzak, 9326 (2015) 305–325.
View | Files available | DOI
 
[57]
2015 | Conference Paper | IST-REx-ID: 1650 | OA
Condensed unpredictability
M. Skórski, A. Golovnev, K.Z. Pietrzak, in:, Springer, 2015, pp. 1046–1057.
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[56]
2015 | Conference Paper | IST-REx-ID: 1654 | OA
Generic security of NMAC and HMAC with input whitening
P. Gazi, K.Z. Pietrzak, S. Tessaro, 9453 (2015) 85–109.
View | Files available | DOI
 
[55]
2015 | Conference Paper | IST-REx-ID: 1669 | OA
The chain rule for HILL pseudoentropy, revisited
K.Z. Pietrzak, M. Skórski, 9230 (2015) 81–98.
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[54]
2015 | Conference Paper | IST-REx-ID: 1671 | OA
The exact PRF security of truncation: Tight bounds for keyed sponges and truncated CBC
P. Gazi, K.Z. Pietrzak, S. Tessaro, in:, Springer, 2015, pp. 368–387.
View | Files available | DOI
 
[53]
2015 | Conference Paper | IST-REx-ID: 1675
Proofs of space
S. Dziembowski, S. Faust, V. Kolmogorov, K.Z. Pietrzak, 9216 (2015) 585–605.
View | Files available | DOI
 
[52]
2014 | Journal Article | IST-REx-ID: 2852
Robust multi-property combiners for hash functions
M. Fischlin, A. Lehmann, K.Z. Pietrzak, Journal of Cryptology 27 (2014) 397–428.
View | Files available | DOI
 
[51]
2014 | Conference Paper | IST-REx-ID: 1927 | OA
Adaptive security of constrained PRFs
G. Fuchsbauer, M. Konstantinov, K.Z. Pietrzak, V. Rao, in:, Springer, 2014, pp. 173–192.
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[50]
2014 | Conference Paper | IST-REx-ID: 2082 | OA
The exact PRF-security of NMAC and HMAC
P. Gazi, K.Z. Pietrzak, M. Rybar, in:, J. Garay, R. Gennaro (Eds.), Springer, 2014, pp. 113–130.
View | Files available | DOI
 
[49]
2014 | Conference Paper | IST-REx-ID: 2185 | OA
Key derivation without entropy waste
Y. Dodis, K.Z. Pietrzak, D. Wichs, in:, P. Nguyen, E. Oswald (Eds.), Springer, 2014, pp. 93–110.
View | Files available | DOI
 
[48]
2014 | Conference Paper | IST-REx-ID: 2219 | OA
Simple chosen-ciphertext security from low noise LPN
E. Kiltz, D. Masny, K.Z. Pietrzak, in:, Springer, 2014, pp. 1–18.
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[47]
2014 | Conference Paper | IST-REx-ID: 2236 | OA
How to fake auxiliary input
D. Jetchev, K.Z. Pietrzak, in:, Y. Lindell (Ed.), Springer, 2014, pp. 566–590.
View | Files available | DOI | Download Submitted Version (ext.)
 
[46]
2013 | Conference Paper | IST-REx-ID: 2940 | OA
A counterexample to the chain rule for conditional HILL entropy, and what deniable encryption has to do with it
S. Krenn, K.Z. Pietrzak, A. Wadia, in:, A. Sahai (Ed.), Springer, 2013, pp. 23–39.
View | Files available | DOI
 
[45]
2013 | Conference Paper | IST-REx-ID: 2258 | OA
Digital signatures with minimal overhead from indifferentiable random invertible functions
E. Kiltz, K.Z. Pietrzak, M. Szegedy, 8042 (2013) 571–588.
View | Files available | DOI
 
[44]
2013 | Conference Paper | IST-REx-ID: 2259 | OA
Learning with rounding, revisited: New reduction properties and applications
J.F. Alwen, S. Krenn, K.Z. Pietrzak, D. Wichs, 8042 (2013) 57–74.
View | Files available | DOI
 
[43]
2013 | Report | IST-REx-ID: 2274 | OA
Proofs of Space
S. Dziembowski, S. Faust, V. Kolmogorov, K.Z. Pietrzak, Proofs of Space, IST Austria, 2013.
View | Files available
 
[42]
2012 | Conference Paper | IST-REx-ID: 2974 | OA
Commitments and efficient zero knowledge proofs from learning parity with noise
A. Jain, S. Krenn, K.Z. Pietrzak, A. Tentes, in:, X. Wang, K. Sako (Eds.), Springer, 2012, pp. 663–680.
View | Files available | DOI
 
[41]
2012 | Journal Article | IST-REx-ID: 3241
Parallel repetition of computationally sound protocols revisited
K.Z. Pietrzak, D. Wikström, Journal of Cryptology 25 (2012) 116–135.
View | DOI
 
[40]
2012 | Conference Paper | IST-REx-ID: 3250
Cryptography from learning parity with noise
K.Z. Pietrzak, in:, Springer, 2012, pp. 99–114.
View | DOI
 
[39]
2012 | Conference Paper | IST-REx-ID: 3279
Hardness preserving constructions of pseudorandom functions
A. Jain, K.Z. Pietrzak, A. Tentes, in:, Springer, 2012, pp. 369–382.
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[38]
2012 | Conference Paper | IST-REx-ID: 3280 | OA
Subspace LWE
K.Z. Pietrzak, in:, Springer, 2012, pp. 548–563.
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[37]
2012 | Conference Paper | IST-REx-ID: 3281
Lossy functions do not amplify well
K.Z. Pietrzak, A. Rosen, G. Segev, in:, Springer, 2012, pp. 458–475.
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[36]
2012 | Conference Paper | IST-REx-ID: 3282 | OA
Message authentication, revisited
Y. Dodis, K.Z. Pietrzak, E. Kiltz, D. Wichs, in:, Springer, 2012, pp. 355–374.
View | Files available | DOI
 
[35]
2012 | Conference Paper | IST-REx-ID: 2048 | OA
Practical leakage-resilient symmetric cryptography
S. Faust, K.Z. Pietrzak, J. Schipper, in:, Conference Proceedings CHES 2012, Springer, 2012, pp. 213–232.
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[34]
2012 | Conference Paper | IST-REx-ID: 2049 | OA
Lapin: An efficient authentication protocol based on ring-LPN
S. Heyse, E. Kiltz, V. Lyubashevsky, C. Paar, K.Z. Pietrzak, in:, Conference Proceedings FSE 2012, Springer, 2012, pp. 346–365.
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[33]
2011 | Conference Paper | IST-REx-ID: 3236
Parallel repetition for leakage resilience amplification revisited
A. Jain, K.Z. Pietrzak, in:, Springer, 2011, pp. 58–69.
View | DOI
 
[32]
2011 | Conference Paper | IST-REx-ID: 3238
Efficient authentication from hard learning problems
E. Kiltz, K.Z. Pietrzak, D. Cash, A. Jain, D. Venturi, in:, Springer, 2011, pp. 7–26.
View | Files available | DOI
 
[31]
2011 | Conference Paper | IST-REx-ID: 3239
Tamper proof circuits How to trade leakage for tamper resilience
S. Faust, K.Z. Pietrzak, D. Venturi, in:, Springer, 2011, pp. 391–402.
View | DOI
 
[30]
2011 | Conference Paper | IST-REx-ID: 3240
Leftover hash lemma revisited
B. Barak, Y. Dodis, H. Krawczyk, O. Pereira, K.Z. Pietrzak, F. Standaert, Y. Yu, in:, Springer, 2011, pp. 1–20.
View | DOI
 
[29]
2010 | Conference Paper | IST-REx-ID: 3233
An efficient parallel repetition theorem
J. Håstad, R. Pass, D. Wikström, K.Z. Pietrzak, in:, Springer, 2010, pp. 1–18.
View | DOI
 
[28]
2010 | Conference Paper | IST-REx-ID: 3234
Leakage resilient signatures
S. Faust, E. Kiltz, K.Z. Pietrzak, G. Rothblum, in:, Springer, 2010, pp. 343–360.
View | DOI
 
[27]
2010 | Conference Paper | IST-REx-ID: 3235
Leakage resilient pseudorandom functions and side channel attacks on feistel networks
Y. Dodis, K.Z. Pietrzak, in:, Springer, 2010, pp. 21–40.
View | DOI
 
[26]
2010 | Conference Paper | IST-REx-ID: 3237
Leakage resilient ElGamal encryption
E. Kiltz, K.Z. Pietrzak, in:, Springer, 2010, pp. 595–612.
View | DOI
 
[25]
2009 | Conference Paper | IST-REx-ID: 3230
A new randomness extraction paradigm for hybrid encryption
E. Kiltz, K.Z. Pietrzak, M. Stam, M. Yung, in:, Springer, 2009, pp. 590–609.
View | DOI
 
[24]
2009 | Conference Paper | IST-REx-ID: 3231 View | DOI
 
[23]
2009 | Conference Paper | IST-REx-ID: 3232
A leakage resilient mode of operation
K.Z. Pietrzak, in:, Springer, 2009, pp. 462–482.
View | DOI
 
[22]
2008 | Conference Paper | IST-REx-ID: 3224
A new mode of operation for block ciphers and length preserving MACs
Y. Dodis, K.Z. Pietrzak, P. Puniya, in:, Springer, 2008, pp. 198–219.
View | DOI
 
[21]
2008 | Conference Paper | IST-REx-ID: 3225
Robust multi property combiners for hash functions revisited
M. Fischlin, A. Lehmann, K.Z. Pietrzak, in:, Springer, 2008, pp. 655–666.
View | Files available | DOI
 
[20]
2008 | Conference Paper | IST-REx-ID: 3226
Weak pseudorandom functions in minicrypt
K.Z. Pietrzak, J. Sjödin, in:, Springer, 2008, pp. 423–436.
View | DOI
 
[19]
2008 | Journal Article | IST-REx-ID: 3227
Elektrowiz – system of measurement data management
P. Zubielik, J. Nadaczny, K.Z. Pietrzak, M. Lawenda, Przeglad Elektrotechniczny 84 (2008) 239–242.
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[18]
2008 | Conference Paper | IST-REx-ID: 3228
Compression from collisions or why CRHF combiners have a long output
K.Z. Pietrzak, in:, Springer, 2008, pp. 413–432.
View | DOI
 
[17]
2008 | Conference Paper | IST-REx-ID: 3229
Leakage resilient cryptography
S. Dziembowski, K.Z. Pietrzak, in:, IEEE, 2008, pp. 293–302.
View | DOI
 
[16]
2007 | Conference Paper | IST-REx-ID: 3218 View | DOI
 
[15]
2007 | Conference Paper | IST-REx-ID: 3219
Indistinguishability amplification
U. Maurer, K.Z. Pietrzak, R. Renner, in:, Springer, 2007, pp. 130–149.
View | DOI
 
[14]
2007 | Conference Paper | IST-REx-ID: 3220
Intrusion resilient secret sharing
S. Dziembowski, K.Z. Pietrzak, in:, IEEE, 2007, pp. 227–237.
View | DOI
 
[13]
2007 | Conference Paper | IST-REx-ID: 3221
Range extension for weak PRFs the good the bad and the ugly
K.Z. Pietrzak, J. Sjödin, in:, Springer, 2007, pp. 517–533.
View | DOI
 
[12]
2007 | Conference Paper | IST-REx-ID: 3222
Parallel repetition of computationally sound protocols revisited
K.Z. Pietrzak, D. Wikström, in:, Springer, 2007, pp. 86–102.
View | DOI
 
[11]
2007 | Conference Paper | IST-REx-ID: 3223
Improving the security of MACs via randomized message preprocessing
Y. Dodis, K.Z. Pietrzak, in:, Springer, 2007, pp. 414–433.
View | DOI
 
[10]
2006 | Conference Paper | IST-REx-ID: 3214
Luby Rackoff ciphers from weak round functions
U. Maurer, Y. Oswald, K.Z. Pietrzak, J. Sjödin, in:, Springer, 2006, pp. 391–408.
View | DOI
 
[9]
2006 | Conference Paper | IST-REx-ID: 3215
Separating sources for encryption and secret sharing
Y. Dodis, K.Z. Pietrzak, B. Przydatek, in:, Springer, 2006, pp. 601–616.
View | DOI
 
[8]
2006 | Conference Paper | IST-REx-ID: 3216
A tight bound for EMAC
K.Z. Pietrzak, in:, Springer, 2006, pp. 168–179.
View | DOI
 
[7]
2006 | Conference Paper | IST-REx-ID: 3217
Composition implies adaptive security in minicrypt
K.Z. Pietrzak, in:, Springer, 2006, pp. 328–338.
View | DOI
 
[6]
2005 | Conference Paper | IST-REx-ID: 3211
Improved security analyses for CBC MACs
M. Bellare, K.Z. Pietrzak, P. Rogaway, in:, Springer, 2005, pp. 527–545.
View | DOI
 
[5]
2005 | Conference Paper | IST-REx-ID: 3212
On the generic insecurity of the full domain hash
Y. Dodis, R. Oliveira, K.Z. Pietrzak, in:, Springer, 2005, pp. 449–466.
View | DOI
 
[4]
2005 | Conference Paper | IST-REx-ID: 3213
Composition does not imply adaptive security
K.Z. Pietrzak, in:, Springer, 2005, pp. 55–65.
View | DOI
 
[3]
2004 | Conference Paper | IST-REx-ID: 3208
Composition of random systems: When two weak make one strong
U. Maurer, K.Z. Pietrzak, in:, Springer, 2004, pp. 410–427.
View | DOI
 
[2]
2003 | Journal Article | IST-REx-ID: 3209 View | DOI
 
[1]
2003 | Conference Paper | IST-REx-ID: 3210
The security of many round Luby Rackoff pseudo random permutations
U. Maurer, K.Z. Pietrzak, in:, Springer, 2003, pp. 544–561.
View | DOI
 

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92 Publications

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[92]
2021 | Conference Paper | IST-REx-ID: 10041 | OA
Limits on the Adaptive Security of Yao’s Garbling
C. Kamath Hosdurg, K. Klein, K.Z. Pietrzak, D. Wichs, in:, 41st Annual International Cryptology Conference, Part II , Springer Nature, Cham, 2021, pp. 486–515.
View | Files available | DOI | Download Preprint (ext.)
 
[91]
2021 | Conference Paper | IST-REx-ID: 10044 | OA
On treewidth, separators and Yao's garbling
C. Kamath Hosdurg, K. Klein, K.Z. Pietrzak, in:, 19th Theory of Cryptography Conference 2021, International Association for Cryptologic Research, n.d.
View | Download Preprint (ext.)
 
[90]
2021 | Conference Paper | IST-REx-ID: 10048 | OA
The cost of adaptivity in security games on graphs
C. Kamath Hosdurg, K. Klein, K.Z. Pietrzak, M. Walter, in:, 19th Theory of Cryptography Conference 2021, International Association for Cryptologic Research, n.d.
View | Files available | Download Preprint (ext.)
 
[89]
2021 | Conference Paper | IST-REx-ID: 10049 | OA
Keep the dirt: tainted TreeKEM, adaptively and actively secure continuous group key agreement
K. Klein, G. Pascual Perez, M. Walter, C. Kamath Hosdurg, M. Capretto, M. Cueto Noval, I. Markov, M.X. Yeo, J.F. Alwen, K.Z. Pietrzak, in:, 2021 IEEE Symposium on Security and Privacy , IEEE, 2021, pp. 268–284.
View | Files available | DOI | Download Preprint (ext.)
 
[88]
2021 | Conference Paper | IST-REx-ID: 9826
Inverse-Sybil attacks in automated contact tracing
B. Auerbach, S. Chakraborty, K. Klein, G. Pascual Perez, K.Z. Pietrzak, M. Walter, M.X. Yeo, in:, Topics in Cryptology – CT-RSA 2021, Springer Nature, 2021, pp. 399–421.
View | DOI
 
[87]
2021 | Conference Paper | IST-REx-ID: 9969 | OA
LightPIR: Privacy-preserving route discovery for payment channel networks
K.Z. Pietrzak, I. Salem, S. Schmid, M.X. Yeo, in:, IEEE, 2021.
View | DOI | Download Submitted Version (ext.) | arXiv
 
[86]
2020 | Conference Paper | IST-REx-ID: 8987 | OA
Delayed authentication: Preventing replay and relay attacks in private contact tracing
K.Z. Pietrzak, in:, Progress in Cryptology, Springer Nature, 2020, pp. 3–15.
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[85]
2019 | Conference Paper | IST-REx-ID: 6430 | OA
Adaptively secure proxy re-encryption
G. Fuchsbauer, C. Kamath Hosdurg, K. Klein, K.Z. Pietrzak, in:, Springer Nature, 2019, pp. 317–346.
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[84]
2019 | Conference Paper | IST-REx-ID: 6528 | OA
Simple verifiable delay functions
K.Z. Pietrzak, in:, 10th Innovations in Theoretical Computer Science Conference, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2019.
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[83]
2019 | Conference Paper | IST-REx-ID: 6677 | OA
Finding a Nash equilibrium is no easier than breaking Fiat-Shamir
A.R. Choudhuri, P. Hubáček, C. Kamath Hosdurg, K.Z. Pietrzak, A. Rosen, G.N. Rothblum, in:, Proceedings of the 51st Annual ACM SIGACT Symposium on Theory of Computing  - STOC 2019, ACM Press, 2019, pp. 1103–1114.
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[82]
2019 | Conference Paper | IST-REx-ID: 7411 | OA
Reversible proofs of sequential work
H.M. Abusalah, C. Kamath Hosdurg, K. Klein, K.Z. Pietrzak, M. Walter, in:, Advances in Cryptology – EUROCRYPT 2019, Springer International Publishing, 2019, pp. 277–291.
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[81]
2018 | Conference Paper | IST-REx-ID: 298 | OA
Sustained space complexity
J.F. Alwen, J. Blocki, K.Z. Pietrzak, in:, Springer, 2018, pp. 99–130.
View | DOI | Download Preprint (ext.) | arXiv
 
[80]
2018 | Conference Paper | IST-REx-ID: 302 | OA
Simple proofs of sequential work
B. Cohen, K.Z. Pietrzak, in:, Springer, 2018, pp. 451–467.
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[79]
2018 | Conference Paper | IST-REx-ID: 6941 | OA
SpaceMint: A cryptocurrency based on proofs of space
S. Park, A. Kwon, G. Fuchsbauer, P. Gazi, J.F. Alwen, K.Z. Pietrzak, in:, 22nd International Conference on Financial Cryptography and Data Security, Springer Nature, 2018, pp. 480–499.
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[78]
2018 | Conference Paper | IST-REx-ID: 7407 | OA
Proofs of catalytic space
K.Z. Pietrzak, in:, 10th Innovations in Theoretical Computer Science  Conference (ITCS 2019), Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2018, p. 59:1-59:25.
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[77]
2018 | Conference Paper | IST-REx-ID: 193 | OA
On the memory hardness of data independent password hashing functions
J.F. Alwen, P. Gazi, C. Kamath Hosdurg, K. Klein, G.F. Osang, K.Z. Pietrzak, L. Reyzin, M. Rolinek, M. Rybar, in:, Proceedings of the 2018 on Asia Conference on Computer and Communication Security, ACM, 2018, pp. 51–65.
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[76]
2018 | Journal Article | IST-REx-ID: 107 | OA
Non-malleable codes
S. Dziembowski, K.Z. Pietrzak, D. Wichs, Journal of the ACM 65 (2018).
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[75]
2017 | Journal Article | IST-REx-ID: 6196 | OA
The exact security of PMAC
P. Gazi, K.Z. Pietrzak, M. Rybar, IACR Transactions on Symmetric Cryptology 2016 (2017) 145–161.
View | Files available | DOI
 
[74]
2017 | Conference Paper | IST-REx-ID: 635 | OA
Scrypt is maximally memory hard
J.F. Alwen, B. Chen, K.Z. Pietrzak, L. Reyzin, S. Tessaro, in:, J.-S. Coron, J. Buus Nielsen (Eds.), Springer, 2017, pp. 33–62.
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[73]
2017 | Conference Paper | IST-REx-ID: 637 | OA
Be adaptive avoid overcommitting
Z. Jafargholi, C. Kamath Hosdurg, K. Klein, I. Komargodski, K.Z. Pietrzak, D. Wichs, in:, J. Katz, H. Shacham (Eds.), Springer, 2017, pp. 133–163.
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[72]
2017 | Conference Paper | IST-REx-ID: 640 | OA
Depth-robust graphs and their cumulative memory complexity
J.F. Alwen, J. Blocki, K.Z. Pietrzak, in:, J.-S. Coron, J. Buus Nielsen (Eds.), Springer, 2017, pp. 3–32.
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[71]
2017 | Conference Paper | IST-REx-ID: 697 | OA
Non uniform attacks against pseudoentropy
K.Z. Pietrzak, M. Skórski, in:, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2017.
View | Files available | DOI
 
[70]
2017 | Conference Paper | IST-REx-ID: 559 | OA
Beyond Hellman’s time-memory trade-offs with applications to proofs of space
H.M. Abusalah, J.F. Alwen, B. Cohen, D. Khilko, K.Z. Pietrzak, L. Reyzin, in:, Springer, 2017, pp. 357–379.
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[69]
2017 | Conference Paper | IST-REx-ID: 605 | OA
Position based cryptography and multiparty communication complexity
J. Brody, S. Dziembowski, S. Faust, K.Z. Pietrzak, in:, Y. Kalai, L. Reyzin (Eds.), Springer, 2017, pp. 56–81.
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[68]
2017 | Journal Article | IST-REx-ID: 1187 | OA
Efficient authentication from hard learning problems
E. Kiltz, K.Z. Pietrzak, D. Venturi, D. Cash, A. Jain, Journal of Cryptology 30 (2017) 1238–1275.
View | Files available | DOI
 
[67]
2016 | Conference Paper | IST-REx-ID: 1653 | OA
New realizations of somewhere statistically binding hashing and positional accumulators
T. Okamoto, K.Z. Pietrzak, B. Waters, D. Wichs, in:, Springer, 2016, pp. 121–145.
View | Files available | DOI
 
[66]
2016 | Conference Paper | IST-REx-ID: 1229 | OA
Offline witness encryption
H.M. Abusalah, G. Fuchsbauer, K.Z. Pietrzak, in:, Springer, 2016, pp. 285–303.
View | Files available | DOI
 
[65]
2016 | Conference Paper | IST-REx-ID: 1231 | OA
On the complexity of scrypt and proofs of space in the parallel random oracle model
J.F. Alwen, B. Chen, C. Kamath Hosdurg, V. Kolmogorov, K.Z. Pietrzak, S. Tessaro, in:, Springer, 2016, pp. 358–387.
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[64]
2016 | Conference Paper | IST-REx-ID: 1233 | OA
Standard security does imply security against selective opening for markov distributions
G. Fuchsbauer, F. Heuer, E. Kiltz, K.Z. Pietrzak, in:, Springer, 2016, pp. 282–305.
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[63]
2016 | Conference Paper | IST-REx-ID: 1236 | OA
Constrained PRFs for unbounded inputs
H.M. Abusalah, G. Fuchsbauer, K.Z. Pietrzak, in:, Springer, 2016, pp. 413–428.
View | Files available | DOI
 
[62]
2016 | Journal Article | IST-REx-ID: 1479 | OA
A counterexample to the chain rule for conditional HILL entropy
S. Krenn, K.Z. Pietrzak, A. Wadia, D. Wichs, Computational Complexity 25 (2016) 567–605.
View | Files available | DOI
 
[61]
2016 | Conference Paper | IST-REx-ID: 1179 | OA
Pseudoentropy: Lower-bounds for chain rules and transformations
K.Z. Pietrzak, S. Maciej, in:, Springer, 2016, pp. 183–203.
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[60]
2015 | Conference Paper | IST-REx-ID: 1646 | OA
Key-homomorphic constrained pseudorandom functions
A. Banerjee, G. Fuchsbauer, C. Peikert, K.Z. Pietrzak, S. Stevens, 9015 (2015) 31–60.
View | Files available | DOI
 
[59]
2015 | Conference Paper | IST-REx-ID: 1648 | OA
A quasipolynomial reduction for generalized selective decryption on trees
G. Fuchsbauer, Z. Jafargholi, K.Z. Pietrzak, in:, Springer, 2015, pp. 601–620.
View | Files available | DOI
 
[58]
2015 | Conference Paper | IST-REx-ID: 1649 | OA
Efficient zero-knowledge proofs for commitments from learning with errors over rings
F. Benhamouda, S. Krenn, V. Lyubashevsky, K.Z. Pietrzak, 9326 (2015) 305–325.
View | Files available | DOI
 
[57]
2015 | Conference Paper | IST-REx-ID: 1650 | OA
Condensed unpredictability
M. Skórski, A. Golovnev, K.Z. Pietrzak, in:, Springer, 2015, pp. 1046–1057.
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[56]
2015 | Conference Paper | IST-REx-ID: 1654 | OA
Generic security of NMAC and HMAC with input whitening
P. Gazi, K.Z. Pietrzak, S. Tessaro, 9453 (2015) 85–109.
View | Files available | DOI
 
[55]
2015 | Conference Paper | IST-REx-ID: 1669 | OA
The chain rule for HILL pseudoentropy, revisited
K.Z. Pietrzak, M. Skórski, 9230 (2015) 81–98.
View | Files available | DOI
 
[54]
2015 | Conference Paper | IST-REx-ID: 1671 | OA
The exact PRF security of truncation: Tight bounds for keyed sponges and truncated CBC
P. Gazi, K.Z. Pietrzak, S. Tessaro, in:, Springer, 2015, pp. 368–387.
View | Files available | DOI
 
[53]
2015 | Conference Paper | IST-REx-ID: 1675
Proofs of space
S. Dziembowski, S. Faust, V. Kolmogorov, K.Z. Pietrzak, 9216 (2015) 585–605.
View | Files available | DOI
 
[52]
2014 | Journal Article | IST-REx-ID: 2852
Robust multi-property combiners for hash functions
M. Fischlin, A. Lehmann, K.Z. Pietrzak, Journal of Cryptology 27 (2014) 397–428.
View | Files available | DOI
 
[51]
2014 | Conference Paper | IST-REx-ID: 1927 | OA
Adaptive security of constrained PRFs
G. Fuchsbauer, M. Konstantinov, K.Z. Pietrzak, V. Rao, in:, Springer, 2014, pp. 173–192.
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[50]
2014 | Conference Paper | IST-REx-ID: 2082 | OA
The exact PRF-security of NMAC and HMAC
P. Gazi, K.Z. Pietrzak, M. Rybar, in:, J. Garay, R. Gennaro (Eds.), Springer, 2014, pp. 113–130.
View | Files available | DOI
 
[49]
2014 | Conference Paper | IST-REx-ID: 2185 | OA
Key derivation without entropy waste
Y. Dodis, K.Z. Pietrzak, D. Wichs, in:, P. Nguyen, E. Oswald (Eds.), Springer, 2014, pp. 93–110.
View | Files available | DOI
 
[48]
2014 | Conference Paper | IST-REx-ID: 2219 | OA
Simple chosen-ciphertext security from low noise LPN
E. Kiltz, D. Masny, K.Z. Pietrzak, in:, Springer, 2014, pp. 1–18.
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[47]
2014 | Conference Paper | IST-REx-ID: 2236 | OA
How to fake auxiliary input
D. Jetchev, K.Z. Pietrzak, in:, Y. Lindell (Ed.), Springer, 2014, pp. 566–590.
View | Files available | DOI | Download Submitted Version (ext.)
 
[46]
2013 | Conference Paper | IST-REx-ID: 2940 | OA
A counterexample to the chain rule for conditional HILL entropy, and what deniable encryption has to do with it
S. Krenn, K.Z. Pietrzak, A. Wadia, in:, A. Sahai (Ed.), Springer, 2013, pp. 23–39.
View | Files available | DOI
 
[45]
2013 | Conference Paper | IST-REx-ID: 2258 | OA
Digital signatures with minimal overhead from indifferentiable random invertible functions
E. Kiltz, K.Z. Pietrzak, M. Szegedy, 8042 (2013) 571–588.
View | Files available | DOI
 
[44]
2013 | Conference Paper | IST-REx-ID: 2259 | OA
Learning with rounding, revisited: New reduction properties and applications
J.F. Alwen, S. Krenn, K.Z. Pietrzak, D. Wichs, 8042 (2013) 57–74.
View | Files available | DOI
 
[43]
2013 | Report | IST-REx-ID: 2274 | OA
Proofs of Space
S. Dziembowski, S. Faust, V. Kolmogorov, K.Z. Pietrzak, Proofs of Space, IST Austria, 2013.
View | Files available
 
[42]
2012 | Conference Paper | IST-REx-ID: 2974 | OA
Commitments and efficient zero knowledge proofs from learning parity with noise
A. Jain, S. Krenn, K.Z. Pietrzak, A. Tentes, in:, X. Wang, K. Sako (Eds.), Springer, 2012, pp. 663–680.
View | Files available | DOI
 
[41]
2012 | Journal Article | IST-REx-ID: 3241
Parallel repetition of computationally sound protocols revisited
K.Z. Pietrzak, D. Wikström, Journal of Cryptology 25 (2012) 116–135.
View | DOI
 
[40]
2012 | Conference Paper | IST-REx-ID: 3250
Cryptography from learning parity with noise
K.Z. Pietrzak, in:, Springer, 2012, pp. 99–114.
View | DOI
 
[39]
2012 | Conference Paper | IST-REx-ID: 3279
Hardness preserving constructions of pseudorandom functions
A. Jain, K.Z. Pietrzak, A. Tentes, in:, Springer, 2012, pp. 369–382.
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[38]
2012 | Conference Paper | IST-REx-ID: 3280 | OA
Subspace LWE
K.Z. Pietrzak, in:, Springer, 2012, pp. 548–563.
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[37]
2012 | Conference Paper | IST-REx-ID: 3281
Lossy functions do not amplify well
K.Z. Pietrzak, A. Rosen, G. Segev, in:, Springer, 2012, pp. 458–475.
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[36]
2012 | Conference Paper | IST-REx-ID: 3282 | OA
Message authentication, revisited
Y. Dodis, K.Z. Pietrzak, E. Kiltz, D. Wichs, in:, Springer, 2012, pp. 355–374.
View | Files available | DOI
 
[35]
2012 | Conference Paper | IST-REx-ID: 2048 | OA
Practical leakage-resilient symmetric cryptography
S. Faust, K.Z. Pietrzak, J. Schipper, in:, Conference Proceedings CHES 2012, Springer, 2012, pp. 213–232.
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[34]
2012 | Conference Paper | IST-REx-ID: 2049 | OA
Lapin: An efficient authentication protocol based on ring-LPN
S. Heyse, E. Kiltz, V. Lyubashevsky, C. Paar, K.Z. Pietrzak, in:, Conference Proceedings FSE 2012, Springer, 2012, pp. 346–365.
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[33]
2011 | Conference Paper | IST-REx-ID: 3236
Parallel repetition for leakage resilience amplification revisited
A. Jain, K.Z. Pietrzak, in:, Springer, 2011, pp. 58–69.
View | DOI
 
[32]
2011 | Conference Paper | IST-REx-ID: 3238
Efficient authentication from hard learning problems
E. Kiltz, K.Z. Pietrzak, D. Cash, A. Jain, D. Venturi, in:, Springer, 2011, pp. 7–26.
View | Files available | DOI
 
[31]
2011 | Conference Paper | IST-REx-ID: 3239
Tamper proof circuits How to trade leakage for tamper resilience
S. Faust, K.Z. Pietrzak, D. Venturi, in:, Springer, 2011, pp. 391–402.
View | DOI
 
[30]
2011 | Conference Paper | IST-REx-ID: 3240
Leftover hash lemma revisited
B. Barak, Y. Dodis, H. Krawczyk, O. Pereira, K.Z. Pietrzak, F. Standaert, Y. Yu, in:, Springer, 2011, pp. 1–20.
View | DOI
 
[29]
2010 | Conference Paper | IST-REx-ID: 3233
An efficient parallel repetition theorem
J. Håstad, R. Pass, D. Wikström, K.Z. Pietrzak, in:, Springer, 2010, pp. 1–18.
View | DOI
 
[28]
2010 | Conference Paper | IST-REx-ID: 3234
Leakage resilient signatures
S. Faust, E. Kiltz, K.Z. Pietrzak, G. Rothblum, in:, Springer, 2010, pp. 343–360.
View | DOI
 
[27]
2010 | Conference Paper | IST-REx-ID: 3235
Leakage resilient pseudorandom functions and side channel attacks on feistel networks
Y. Dodis, K.Z. Pietrzak, in:, Springer, 2010, pp. 21–40.
View | DOI
 
[26]
2010 | Conference Paper | IST-REx-ID: 3237
Leakage resilient ElGamal encryption
E. Kiltz, K.Z. Pietrzak, in:, Springer, 2010, pp. 595–612.
View | DOI
 
[25]
2009 | Conference Paper | IST-REx-ID: 3230
A new randomness extraction paradigm for hybrid encryption
E. Kiltz, K.Z. Pietrzak, M. Stam, M. Yung, in:, Springer, 2009, pp. 590–609.
View | DOI
 
[24]
2009 | Conference Paper | IST-REx-ID: 3231 View | DOI
 
[23]
2009 | Conference Paper | IST-REx-ID: 3232
A leakage resilient mode of operation
K.Z. Pietrzak, in:, Springer, 2009, pp. 462–482.
View | DOI
 
[22]
2008 | Conference Paper | IST-REx-ID: 3224
A new mode of operation for block ciphers and length preserving MACs
Y. Dodis, K.Z. Pietrzak, P. Puniya, in:, Springer, 2008, pp. 198–219.
View | DOI
 
[21]
2008 | Conference Paper | IST-REx-ID: 3225
Robust multi property combiners for hash functions revisited
M. Fischlin, A. Lehmann, K.Z. Pietrzak, in:, Springer, 2008, pp. 655–666.
View | Files available | DOI
 
[20]
2008 | Conference Paper | IST-REx-ID: 3226
Weak pseudorandom functions in minicrypt
K.Z. Pietrzak, J. Sjödin, in:, Springer, 2008, pp. 423–436.
View | DOI
 
[19]
2008 | Journal Article | IST-REx-ID: 3227
Elektrowiz – system of measurement data management
P. Zubielik, J. Nadaczny, K.Z. Pietrzak, M. Lawenda, Przeglad Elektrotechniczny 84 (2008) 239–242.
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[18]
2008 | Conference Paper | IST-REx-ID: 3228
Compression from collisions or why CRHF combiners have a long output
K.Z. Pietrzak, in:, Springer, 2008, pp. 413–432.
View | DOI
 
[17]
2008 | Conference Paper | IST-REx-ID: 3229
Leakage resilient cryptography
S. Dziembowski, K.Z. Pietrzak, in:, IEEE, 2008, pp. 293–302.
View | DOI
 
[16]
2007 | Conference Paper | IST-REx-ID: 3218 View | DOI
 
[15]
2007 | Conference Paper | IST-REx-ID: 3219
Indistinguishability amplification
U. Maurer, K.Z. Pietrzak, R. Renner, in:, Springer, 2007, pp. 130–149.
View | DOI
 
[14]
2007 | Conference Paper | IST-REx-ID: 3220
Intrusion resilient secret sharing
S. Dziembowski, K.Z. Pietrzak, in:, IEEE, 2007, pp. 227–237.
View | DOI
 
[13]
2007 | Conference Paper | IST-REx-ID: 3221
Range extension for weak PRFs the good the bad and the ugly
K.Z. Pietrzak, J. Sjödin, in:, Springer, 2007, pp. 517–533.
View | DOI
 
[12]
2007 | Conference Paper | IST-REx-ID: 3222
Parallel repetition of computationally sound protocols revisited
K.Z. Pietrzak, D. Wikström, in:, Springer, 2007, pp. 86–102.
View | DOI
 
[11]
2007 | Conference Paper | IST-REx-ID: 3223
Improving the security of MACs via randomized message preprocessing
Y. Dodis, K.Z. Pietrzak, in:, Springer, 2007, pp. 414–433.
View | DOI
 
[10]
2006 | Conference Paper | IST-REx-ID: 3214
Luby Rackoff ciphers from weak round functions
U. Maurer, Y. Oswald, K.Z. Pietrzak, J. Sjödin, in:, Springer, 2006, pp. 391–408.
View | DOI
 
[9]
2006 | Conference Paper | IST-REx-ID: 3215
Separating sources for encryption and secret sharing
Y. Dodis, K.Z. Pietrzak, B. Przydatek, in:, Springer, 2006, pp. 601–616.
View | DOI
 
[8]
2006 | Conference Paper | IST-REx-ID: 3216
A tight bound for EMAC
K.Z. Pietrzak, in:, Springer, 2006, pp. 168–179.
View | DOI
 
[7]
2006 | Conference Paper | IST-REx-ID: 3217
Composition implies adaptive security in minicrypt
K.Z. Pietrzak, in:, Springer, 2006, pp. 328–338.
View | DOI
 
[6]
2005 | Conference Paper | IST-REx-ID: 3211
Improved security analyses for CBC MACs
M. Bellare, K.Z. Pietrzak, P. Rogaway, in:, Springer, 2005, pp. 527–545.
View | DOI
 
[5]
2005 | Conference Paper | IST-REx-ID: 3212
On the generic insecurity of the full domain hash
Y. Dodis, R. Oliveira, K.Z. Pietrzak, in:, Springer, 2005, pp. 449–466.
View | DOI
 
[4]
2005 | Conference Paper | IST-REx-ID: 3213
Composition does not imply adaptive security
K.Z. Pietrzak, in:, Springer, 2005, pp. 55–65.
View | DOI
 
[3]
2004 | Conference Paper | IST-REx-ID: 3208
Composition of random systems: When two weak make one strong
U. Maurer, K.Z. Pietrzak, in:, Springer, 2004, pp. 410–427.
View | DOI
 
[2]
2003 | Journal Article | IST-REx-ID: 3209 View | DOI
 
[1]
2003 | Conference Paper | IST-REx-ID: 3210
The security of many round Luby Rackoff pseudo random permutations
U. Maurer, K.Z. Pietrzak, in:, Springer, 2003, pp. 544–561.
View | DOI
 

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