scholarly journals Lossy CSI-FiSh: Efficient Signature Scheme with Tight Reduction to Decisional CSIDH-512

2020 ◽  
pp. 157-186 ◽  
Author(s):  
Ali El Kaafarani ◽  
Shuichi Katsumata ◽  
Federico Pintore
Keyword(s):  
Signature Scheme ◽  
Tight Reduction

Post-quantum digital signature schemes: setting a hidden group with two-dimensional cyclicity

2020 ◽  
Vol 4 ◽  
pp. 75-82
Author(s):  
D.Yu. Guryanov ◽  
◽  
D.N. Moldovyan ◽  
A. A. Moldovyan ◽  
Keyword(s):  
Associative Algebra ◽  
Digital Signature ◽  
Quantum Signature ◽  
Commutative Group ◽  
Two Dimensional ◽  
Signature Scheme ◽  
Signature Schemes ◽  
Fixed Element ◽  
Commutative Associative Algebra ◽  
Quantum Digital Signature

For the construction of post-quantum digital signature schemes that satisfy the strengthened criterion of resistance to quantum attacks, an algebraic carrier is proposed that allows one to define a hidden commutative group with two-dimensional cyclicity. Formulas are obtained that describe the set of elements that are permutable with a given fixed element. A post-quantum signature scheme based on the considered finite non-commutative associative algebra is described.

Backward Unlinkability and Verifier-Local Revocation Group Signature Scheme with Lower Cost

2010 ◽  
Vol 20 (7) ◽  
pp. 1977-1985
Author(s):  
Ling-Bo WEI ◽  
Chuan-Kun WU ◽  
Ting-Ge ZHU
Keyword(s):  
Lower Cost ◽  
Group Signature ◽  
Signature Scheme
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