Anonymous one-time signatures and flexible untraceable electronic cash

Efficient Electronic Cash Using Batch Signatures

ACISP '99 Proceedings of the 4th Australasian Conference on Information Security and Privacy

Universal Electronic Cash

CRYPTO '91 Proceedings of the 11th Annual International Cryptology Conference on Advances in Cryptology

Provably Unforgeable Signatures

CRYPTO '92 Proceedings of the 12th Annual International Cryptology Conference on Advances in Cryptology

An Efficient Divisible Electronic Cash Scheme

CRYPTO '95 Proceedings of the 15th Annual International Cryptology Conference on Advances in Cryptology