The first Zcash client has been released, and is currently available as a command-line tool for Linux. Visit our download page to try it out. Please note that Zcash is based on peer-reviewed cryptographic research, but it is still an experimental technology. Join our community developer chat to follow ongoing development, or visit the technology page to learn more about the Zcash protocol.
Zcash is a decentralized and open-source cryptocurrency that offers privacy and selective transparency of transactions. The protocol was launched in October 2016 and is based on peer-reviewed cryptographic research, and built by a security-specialized engineering team on an open source platform based on Bitcoin Core's battle-tested codebase.
如果把比特币比做 http 版的货币，那么 Zcash 就是 https 版的货币。Zcash 使用去中心化的公有区块链，提供完整的隐私交易。与比特币不同，Zcash 的交易可以在区块链上隐藏发款人、收款人和这笔转账的实际数量。只有掌握正确私钥的人才能看到转账里面的内容。用户对于这笔交易的公开与否具有完全的掌控权。Zcash 交易并不依赖于任何第三方。
The Zerocoin Electric Coin Company (ZECC) is the core maintainer of the Zcash protocol.
Zcash 可以加密交易中的特定内容。由于交易信息是加密的，Zcash 协议使用了一个新颖的密码学技术来验证交易信息的真实性。
Zcash uses a zero-knowledge proof construction called a zk-SNARK, developed by our team of experienced cryptographers based on recent breakthroughs in cryptography. These constructions allow the network to maintain a secure ledger of balances without disclosing the parties or amounts involved. Instead of publicly demonstrating spend-authority and transaction values, the transaction metadata is encrypted and zk-SNARKs are used to prove that nobody is cheating or stealing.
The scientists, advisors and engineers of ZECC developed and launched the Zcash protocol; this includes all of the authors of the Zerocash protocol, most of the creators of the Zerocoin protocol, and leading researchers of zk-SNARKs themselves.
Since Zcash is an open-source protocol, ZECC does not control it (including controlling the mining or distribution of it) or have special access to private or shielded transactions. Just like anyone else, ZECC only has the ability to see a private or shielded transaction if it is a party to that transaction or someone provides it with the correct view key. ZECC’s role in the ecosystem is to offer updates to the Zcash protocol which the public may choose to implement or ignore. ZECC does not sell, exchange, transmit, or retain custody of Zcash for consumers or the public at large.