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Paper 2014/635
Type 2 Structure-Preserving Signature Schemes Revisited
Sanjit Chatterjee and Alfred Menezes
Abstract
Abe, Groth, Ohkubo and Tibouchi recently presented structure-preserving signature schemes using Type 2 pairings. The schemes are claimed to enjoy the fastest signature verification. By properly accounting for subgroup membership testing of group elements in signatures, we show that the schemes are not as efficient as claimed. We present natural Type 3 analogues of the Type 2 schemes, and show that the Type 3 schemes are superior to their Type 2 counterparts.
Metadata
- Available format(s)
- Publication info
- Preprint. MINOR revision.
- Contact author(s)
- sanjit @ csa iisc ernet in
- History
- 2015-09-10: last of 4 revisions
- 2014-08-21: received
- See all versions
- Short URL
- https://ia.cr/2014/635
- License
-
CC BY