Mengenal Zero-Knowledge Proofs (ZKPs)

In the world of cryptography, a zero-knowledge proof allows one party to demonstrate that a transaction or event occurred without revealing the specific details of that transaction or event.

Get to Know with Zero-Knowledge Proofs

Zero-Knowledge Proof (ZKP), also referred to as Zero-Knowledge Password Proof, is an authentication method where passwords are not shared, thus preventing theft. This approach ensures the security of private conversations and transactions by confirming information using Zero-Knowledge Proofs (ZKPs) without exposing it to anyone not part of the authentication network. 

Consequently, ZKPs have the potential to revolutionize how data is obtained, utilized, and exchanged.

Combat Blockchain Lack of Privacy

Blockchains, which consist of records managed by various distributed parties, lack privacy and anonymity as all transactions are visible to all participants. Zero-knowledge proofs enable the inclusion of private transactions on the blockchain while preserving privacy by verifying successful completion without revealing the sensitive information used. Essentially, ZKPs allow one party to demonstrate awareness of a value without exposing further details.

Safeguarding the Network

Zero-knowledge proofs address the fundamental challenges of security and privacy in the blockchain realm. Major corporations adopt them to safeguard confidentiality and conduct secure transactions across blockchain networks.

Ability to Keep Information Confidential

In the application code, processes are executed off-chain or by a specific node in the blockchain network, with only confirmation of their accurate execution transmitted to the blockchain for verification by other parties. Zero-knowledge proofs also facilitate sending private messages without revealing the sender's identity to the server. Unlike conventional messaging apps, ZKP protocol-based software enables users to keep personal information confidential, sharing only necessary data with other parties.

Two types of Zero-Knowledge Proofs

There are two primary types of zero-knowledge proofs: interactive and non-interactive. 

Interactive

Interactive ZKPs require the prover to engage in a series of actions to convince the verifier of their knowledge, often involving mathematical principles. 

Non-Interactive

Non-interactive ZKPs, on the other hand, do not require direct interaction between the prover and verifier, allowing verification to occur later. However, these ZKPs may require additional computing resources or software.

Secure Communication with ZKPs

Integrating ZKPs with blockchain enables secure communication of complex documents. Notably, data can be encrypted in blocks, allowing users to control access to specific information, granting entry to certain users while restricting others.

Conclusion

ZKPs have found significant use in Z-Cash, a cryptocurrency facilitating confidential transactions. Additionally, the AdEx Network utilizes decentralized ZKP ad auctions, enabling users to bid on ad display costs without revealing bid amounts to others.

Also Read

Understanding Secure Elements

Understanding Secure Multi-Party Computation (SMPC)

What is Hardware Security Module?

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