LACT+: Practical Post-Quantum Scalable Confidential Transactions

A “confidential monetary value” carries information about the real value but does not disclose it. Post-quantum private blockchains with confidential values—large-sized large verification times—have least scalability because they need to save and verify more than those “plain-text values”. High is an essential security requirement for decentralized blockchain payment systems honest peers who can afford copies are, higher security. We propose a quantum-safe transaction protocol blockchains, LACT+ (Lattice-based Aggregable Confidential Transactions), which scalable previous post-quantum i.e., many input/output transactions logarithmic sized complexity.