intelligence_src_e53adb99e40ae66258
- Source-provided label
- Publisher RSS metadata
- Evidence class
- mentioned in report
- Confidence
- Not reported
- Observed
- Oct 08, 2026 21:36 UTC
- Retrieved
- Oct 14, 2026 04:29 UTC
Revisiting Lattice-based Blind Signatures Again
ePrint Report: Revisiting Lattice-based Blind Signatures Again Yi-Fu Lai, Yu Yu We show an attack on a lattice-based blind signature proposed in Crypto'20. Formally it is a linear hash function based framework with a lattice-based instantiation. We first notice a bug in their security proof of blindness, which is overlooked these years. Then, we develop an attack under the honest key and the honest-but-curious signer setting against the blindness notion of the schemes by exploiting the coorelations between the leaves of the tree. We also discuss how to repair the scheme.
Reference details
- Source category
- research-report
- First reported
- Oct 08, 2026 21:36 UTC
- Last reported
- Oct 08, 2026 21:36 UTC
- Catalog updated
- Oct 14, 2026 04:29 UTC
- Record ID
47fbe0383219f301d3f59f810a5dfb93c53b7c934870bce87f028f36ca9030bb
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