Kup nullifier (NULL) w France

Nullifier (NULL) is a Web3 project that operates as a privacy-preserving transaction mixer on the Solana blockchain. Its main function is to break the link between deposit and withdrawal addresses for transactions. Users can deposit SOL (Solana's native token) and then withdraw it to new, fresh addresses after a time delay, thereby enhancing transaction privacy. This process aims to provide privacy while maintaining the security and speed inherent to the Solana blockchain. The protocol utilizes zero-knowledge proofs (zkSNARKs) to achieve its privacy objectives. Specifically, it employs Groth16 zkSNARK verification, SHA256-based cryptographic commitments, and Poseidon hash functions for Merkle tree proofs to maximize privacy. Beyond the specific token, the term "nullifier" in the broader Web3 context refers to a cryptographic mechanism. Nullifiers act as a public commitment to a specific anonymous account, preventing actions like double-spending or enabling a consistent identity across anonymous actions. They are often described as a "gatekeeper of privacy," ensuring that an action can only be performed once without revealing the user's identity. This concept is applied in various scenarios such as anonymous voting, where a nullifier ensures each voter casts only one vote while remaining anonymous, and for secure airdrops, preventing multiple claims. Dowiedz się więcej