Zero-Knowledge Succinct Non-Interactive Argument of Knowledge (zk-SNARK) - What is it?

zk-SNARK is a special construction that aims to prove the possession of information without requiring direct interaction between the parties.

The essential conditions for compliance with zk-SNARK are completeness, validity, and zero knowledge.

Unlike interactive proof, in which one of the transaction participants requests multiple confirmations of a secret code or other information, with a non-interactive type zk-SNARK, interaction with the provision of confirmations is carried out only once.

Benefits of zk-SNARKS

The use of this verification method provides the following advantages to each of the parties to the transaction:

  • efficiency while maintaining a high level of confidentiality;
  • compatibility with various types of platforms and blockchains, which ensures seamless interaction across different networks;
  • security due to cryptographic encryption and verification methods.

In addition, zk-SNARK allows for a full and effective audit, which positively affects the transparency of all blockchain processes.