The paper introduces public-key and symmetric-key cryptosystems whose key is the distorted word length of iterated pseudo-Anosov maps, but the concrete instantiations are insecure because the reachable key space is minuscule.
Algom-Kfir, Yael, E
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A cryptographic application of the Thurston norm
The paper introduces public-key and symmetric-key cryptosystems whose key is the distorted word length of iterated pseudo-Anosov maps, but the concrete instantiations are insecure because the reachable key space is minuscule.