ZK-SNARKs allow real-world application of zero-knowledge systems. Zcash and other blockchain-based systems use them to protect privacy.

• These technologies ensure that transactions on the blockchain are private and secure, while also being verifiable.
• These tools allow users to prove that a transaction was valid without revealing private information, such as the sender, receiver, or amount sent.
• These proofs are efficient because they do not require much computational power or time for generation and verification. ZK-SNARKs find applications beyond blockchain in areas such as secure voting, confidential data sharing and digital identification verification. They are a great tool to improve privacy and security in many different areas.