zk snark definition and use cases


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Zero-Knowledge Succinct Non-Interactive Argument of Knowledge (zk-SNARK) is a cryptographic method used to prove possession of certain information without revealing that information. It allows one party (the prover) to convince another party (the verifier) that a statement is true, without disclosing any additional information beyond the validity of the statement.

How ZkSnakr works. Privacy on web3
How zk-Snarks works: The three pillars functions of this proofs

Key Concepts

Zero-Knowledge Proof

A zero-knowledge proof is a method by which one party (the prover) can prove to another party (the verifier) that a statement is true, without revealing any information about the statement itself. In the context of zk-SNARKs, this means that the prover can demonstrate knowledge of a secret without revealing the secret itself.

Succinct Non-Interactive

zk-SNARKs are succinct, meaning that the proofs generated by the prover are short and easy to verify. Additionally, zk-SNARKs are non-interactive, meaning that the prover does not need to engage in back-and-forth communication with the verifier to generate the proof.


Privacy-Preserving Transactions

zk-SNARKs are used in cryptocurrencies like Zcash to enable privacy-preserving transactions. With zk-SNARKs, users can prove the validity of a transaction without revealing the sender, receiver, or transaction amount.

Decentralized Identity

zk-SNARKs can be used in decentralized identity systems to enable selective disclosure of identity attributes. Users can prove possession of certain attributes without revealing their entire identity, enhancing privacy and security in digital interactions.

Secure Authentication

zk-SNARKs can be used in authentication protocols to enable secure and privacy-preserving authentication mechanisms. Users can prove possession of a secret or knowledge of an identity attribute without revealing sensitive information to third parties.

Extrimian’s Role

Extrimian specializes in the development and integration of zero-knowledge proof technologies like zk-SNARKs into its solutions. By leveraging zk-SNARKs, Extrimian enables privacy-preserving transactions, secure authentication, and decentralized identity management for its clients.

Related Wikis

External Links

  • Zcash: Official website of Zcash, a cryptocurrency that utilizes zk-SNARKs for privacy-preserving transactions.
  • zk-SNARKs Explained: Article on CoinDesk explaining zk-SNARKs in detail and their applications in cryptocurrencies.


zk-SNARKs are a powerful cryptographic tool with applications across various domains, including privacy-preserving transactions, decentralized identity, and secure authentication. As the demand for privacy and security in digital interactions continues to grow, zk-SNARKs will play an increasingly important role in enabling trustless and decentralized systems. Extrimian remains committed to leveraging zk-SNARKs and other cutting-edge technologies to deliver innovative solutions that empower individuals and organizations in the digital age.