SwiftRange: A Short and Efficient Zero-Knowledge Range Argument For Confidential Transactions and More

ePrint Report: SwiftRange: A Short and Efficient Zero-Knowledge Range Argument For Confidential Transactions and More

Nan Wang, Sid Chi-Kin Chau, Dongxi Liu

Zero-knowledge range proofs play a critical role in confidential transactions (CT) on blockchain systems. They are used to prove the non-negativity of committed transaction payments without disclosing the exact values. Logarithmic-sized range proofs with transparent setups, e.g., Bulletproofs, which aim to prove a committed value lies in the range $[0, 2^N-1]$ where $N$ is the bit length of …

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