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#[https://arxiv.org/abs/quant-ph/0601130 ACJ (2006)] discusses coherent states comparison with a QDS scheme outlined in the last section. Protocol uses the same protocol as (2) but replaces qubits with [[coherent states]], thus replacing SWAP-Test with [[Coherent State Comparison]]. Additionally, it also requires quantum memory, authenticated quantum and classical channels, [[multiports]]. [[Unconditionally Secure]], [[Network Stage: Quantum Memory]] | #[https://arxiv.org/abs/quant-ph/0601130 ACJ (2006)] discusses coherent states comparison with a QDS scheme outlined in the last section. Protocol uses the same protocol as (2) but replaces qubits with [[coherent states]], thus replacing SWAP-Test with [[Coherent State Comparison]]. Additionally, it also requires quantum memory, authenticated quantum and classical channels, [[multiports]]. [[Unconditionally Secure]], [[Network Stage: Quantum Memory]] | ||
#[https://arxiv.org/abs/1309.1375 DWA (2013)] first QDS scheme without quantum memory based on [https://arxiv.org/abs/quant-ph/0601130 (3)]. '''Requires''' [[Coherent States]], authenticated quantum and classical channels, [[multiports]], [[Unambiguous State Discrimination (USD)]] (State Elimination), no symmetrisation required. [[Unconditionally Secure]]. [[Network Stage: Prepare and Measure]] | #[https://arxiv.org/abs/1309.1375 DWA (2013)] first QDS scheme without quantum memory based on [https://arxiv.org/abs/quant-ph/0601130 (3)]. '''Requires''' [[Coherent States]], authenticated quantum and classical channels, [[multiports]], [[Unambiguous State Discrimination (USD)]] (State Elimination), no symmetrisation required. [[Unconditionally Secure]]. [[Network Stage: Prepare and Measure]] | ||
#[https://journals.aps.org/pra/abstract/10.1103/PhysRevA.90.042335 AL (2014)] Establishes coherent state mapping of (2). Replaces SWAP Test with beam splitters. Uses [[Unambiguous State Discrimination (USD)]] (State Elimination). '''Requires''' [[Phase encoded Coherent states]], [[Balanced Beam Splitters]]. No explicit security proof provided. [[Network Stage: Prepare and Measure]] | |||
#[https://arxiv.org/abs/1505.07509 AWA (2015)] security proof for generalisation of [https://arxiv.org/abs/1403.5551 WDKA (2015)] and [https://arxiv.org/abs/1309.1375 DWA (2013)] to more than two recipients case. | #[https://arxiv.org/abs/1505.07509 AWA (2015)] security proof for generalisation of [https://arxiv.org/abs/1403.5551 WDKA (2015)] and [https://arxiv.org/abs/1309.1375 DWA (2013)] to more than two recipients case. | ||
#[https://www.researchgate.net/publication/280062082_Practical_Quantum_Digital_Signature YFC (2016)] first QDS scheme without authenticated (trusted) quantum channels. Demonstrates one protocol with two implementation, [[two copies of single photon]] method and [[decoy state]] method. First uses single qubit photons in three bases; Private key: classical description of states, Public key: pair of [[non-orthogonal states]] in any two of the three bases. '''Requires''' authenticated classical channels, [[polarisation measurement]] in three bases, [[Unambiguous State Discrimination (USD)]] (State Elimination), uses quantum correlations to check authentication. Decoy State method uses [[phase-randomised weak coherent states]], [[50:50 Beam Splitter (BS)]], [[Unconditionally Secure]] [[Network Stage: Prepare and Measure]]. | #[https://www.researchgate.net/publication/280062082_Practical_Quantum_Digital_Signature YFC (2016)] first QDS scheme without authenticated (trusted) quantum channels. Demonstrates one protocol with two implementation, [[two copies of single photon]] method and [[decoy state]] method. First uses single qubit photons in three bases; Private key: classical description of states, Public key: pair of [[non-orthogonal states]] in any two of the three bases. '''Requires''' authenticated classical channels, [[polarisation measurement]] in three bases, [[Unambiguous State Discrimination (USD)]] (State Elimination), uses quantum correlations to check authentication. Decoy State method uses [[phase-randomised weak coherent states]], [[50:50 Beam Splitter (BS)]], [[Unconditionally Secure]] [[Network Stage: Prepare and Measure]]. | ||
#[https://www.researchgate.net/publication/280034032_Secure_Quantum_Signatures_Using_Insecure_Quantum_Channels AWKA (2015)] QDS scheme without authenticated quantum channels. Uses a Key Generations Protocol (KGP) where noise threshold for Seller-Buyer and Seller-Verifier is better than when distilling secret key from QKD. '''Requires''' authenticated classical channels, [[decoy state BB84 QKD]]. [[Unconditionally Secure]] [[Network Stage: Prepare and Measure]]. | #[https://www.researchgate.net/publication/280034032_Secure_Quantum_Signatures_Using_Insecure_Quantum_Channels AWKA (2015)] QDS scheme without authenticated quantum channels. Uses a Key Generations Protocol (KGP) where noise threshold for Seller-Buyer and Seller-Verifier is better than when distilling secret key from QKD. '''Requires''' authenticated classical channels, [[decoy state BB84 QKD]]. [[Unconditionally Secure]] [[Network Stage: Prepare and Measure]]. | ||