Geodesic
One-time ring signature in e-cash
Prikladnaya Diskretnaya Matematika. Supplement, no. 5 (2012), pp. 56-58 
G. O. Chikishev. One-time ring signature in e-cash. Prikladnaya Diskretnaya Matematika. Supplement, no. 5 (2012), pp. 56-58. http://geodesic.mathdoc.fr/item/PDMA_2012_5_a29/
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     author = {G. O. Chikishev},
     title = {One-time ring signature in e-cash},
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     url = {http://geodesic.mathdoc.fr/item/PDMA_2012_5_a29/}
}
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Voir la notice de l'article provenant de la source Math-Net.Ru

Ring signature allows to specify a set of potential message signers instead of the actual signer. In this paper, a new signature type is introduced – the one-time ring signature which allows to sign only one message. The use of the same secret key twice reveals signer's identity. A protocol for untraceable payments in Bitcoin e-cash system is also offered.

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