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| Content Provider | Springer Nature Link |
|---|---|
| Author | Haitner, Iftach Horvitz, Omer Katz, Jonathan Koo, Chiu Yuen Morselli, Ruggero Shaltiel, Ronen |
| Copyright Year | 2007 |
| Abstract | We revisit the following question: what are the minimal assumptions needed to construct statistically-hiding commitment schemes? Naor et al. show how to construct such schemes based on any one-way permutation. We improve upon this by showing a construction based on any approximable preimage-size one-way function. These are one-way functions for which it is possible to efficiently approximate the number of pre-images of a given output. A special case is the class of regular one-way functions where all points in the image of the function have the same (known) number of pre-images. We also prove two additional results related to statistically-hiding commitment. First, we prove a (folklore) parallel composition theorem showing, roughly speaking, that the statistical hiding property of any such commitment scheme is amplified exponentially when multiple independent parallel executions of the scheme are carried out. Second, we show a compiler which transforms any commitment scheme which is statistically hiding against an honest-but-curious receiver into one which is statistically hiding even against a malicious receiver. |
| Starting Page | 283 |
| Ending Page | 310 |
| Page Count | 28 |
| File Format | |
| ISSN | 09332790 |
| Journal | Journal of Cryptology |
| Volume Number | 22 |
| Issue Number | 3 |
| e-ISSN | 14321378 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2007-09-22 |
| Publisher Place | New York |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Bit commitment Statistical hiding Regular one way functions Communications Engineering, Networks Probability Theory and Stochastic Processes Combinatorics Computational Mathematics and Numerical Analysis Coding and Information Theory |
| Content Type | Text |
| Resource Type | Article |
| Subject | Applied Mathematics Computer Science Applications Software |
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