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Omniring: Scaling Up Private Payments Without Trusted Setup - Formal Foundations and Constructions of Ring Confidential Transactions with Log-size Proofs
Ring Confidential Transactions Log-size Proofs
2019/5/31
Monero is the largest cryptocurrency with built-in cryptographic privacy features. The transactions are authenticated using spend proofs, which provide a certain level of anonymity by hiding the sourc...
ZeroCT: Improving ZeroCoin with Confidential Transactions and more
zero knowledge RSA discrete logarithm problem
2019/1/26
The Zerocoin protocol is a set of cryptographic algorithms which embedded in a cryptocurrency provide anonymous swap of tokens in a mathematically provable way by using cryptographic accumulators. Fun...
Post-Quantum One-Time Linkable Ring Signature and Application to Ring Confidential Transactions in Blockchain (Lattice RingCT v1.0)
Linkable Ring Signature Lattice-Based Cryptography Post-Quantum Cryptography
2018/5/2
In this paper, we construct a Lattice-based one-time Linkable Ring Signature (L2RS) scheme, which enables the public to verify if two or more signatures were generated by same signatory, whilst still ...
Bulletproofs: Efficient Range Proofs for Confidential Transactions
zero knowledge NIZK discrete logarithm problem
2017/11/13
We propose Bulletproofs, a new non-interactive zero-knowledge proof protocol with very short proofs and without a trusted setup; the proof size is only logarithmic in the witness size. Bulletproofs ar...
Switch Commitments: A Safety Switch for Confidential Transactions
commitments cryptographic agility everlasting security
2017/3/13
Cryptographic agility is the ability to switch to larger cryptographic parameters or different algorithms in the case of security doubts. This very desirable property of cryptographic systems is inher...
Mixing Confidential Transactions: Comprehensive Transaction Privacy for Bitcoin
cryptocurrencies coin mixing anonymity
2017/3/13
The public nature of the blockchain has been shown to be a severe threat for the privacy of Bitcoin users. Even worse, since funds can be tracked and tainted, no two coins are equal, and fungibility, ...
This article introduces a method of hiding transaction
amounts in the strongly decentralized anonymous cryptocurrency
Monero. Similar to Bitcoin, Monero is a cryptocurrency which is
distributed thr...