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Secure sketch produces public information of its input ww without revealing it, yet, allows the exact recovery of ww given another value w′w′ that is close to ww. Therefore, it can be used to reliably...
A New Distribution Sensitive Secure Sketch and a Comparison Between Approaches to Typo-Tolerant Authentication
Secure sketches typo-tolerant password authentication
2017/6/9
Motivated by typo correction in password authentication, we investigate cryptographic error-correction of secrets in settings where the distribution of secrets is a priori (approximately) known. We re...
Secure Sketch Metamorphosis: Tight Unified Bounds
secure sketch fuzzy extractor min-entropy
2015/12/23
A noisy non-uniformly distributed secret often needs to be
transformed into a stable high-entropy key. Biometric systems and physically
unclonable functions (PUFs) exemplify the need for this conver...
Small Secure Sketch for Point-Set Difference
biometrics error-tolerant cryptography secure sketch point-set difference
2009/2/7
A secure sketch is a set of published data that can help to recover the original biometric
data after they are corrupted by permissible noises, and by itself does not reveal much
information about t...
Secure Sketch for Multi-Sets
Secure sketch set difference multi-set error-tolerant cryptography
2008/11/5
Given the original set X where |X| = s, a sketch P is computed from
X and made public. From another set Y where |Y | = s and P, we can
reconstruct X if |X \ Y | |s − t|, where t < s is some ...