As digital assets enter the balance sheets of enterprises, many institutions urgently need a secure, intelligent, and easy-to-use digital asset management solution. The zCloak Network multi-signature wallet was born. It is not just an improvement on existing technologies, but a complete reconstruction: redefining the best solution for enterprise-level digital asset management.
Break through traditional multi-signature to open a new paradigm
Multi-signature wallets have long been the foundation for the secure custody of crypto assets. However, they are not perfect for enterprises: complex deployment, gas fees required for multi-chain, rigid approval mechanisms, and lack of privacy protection for sensitive data. In response, zCloak provides a new answer. Based on the Internet Computer Protocol (ICP) and Chain-Key cryptography with vetKey technology, it builds multi-signature infrastructure directly at the protocol level, bringing unprecedented privacy and security.
The zCloak multi-signature wallet completely abandons the reliance on a single device or hardware wallet for storing private keys, splitting keys and distributing them across network nodes. When a transaction needs to be signed, nodes work together to generate partial signatures and aggregate them into a final result. This mechanism eliminates a large amount of potential risk while maintaining the flexibility and confidentiality required by enterprises.
The chain is the key, true self-custody.
The core of zCloak lies in Chain-Key cryptography, which operates through ICP's canister (smart contract container). Whenever a transaction needs approval, the canister calls a dedicated interface, and nodes in the ICP subnet collaboratively generate signatures. No single node can access the complete private key. In fact, the private key never exists separately in the system; it only briefly manifests in the form of a digital signature result at the moment of signature generation.
Such a design makes zCloak a pure technology provider, truly realizing user wallet self-custody. Users always have control over their assets, and no third party, including the zCloak project team, has the right to access or touch user assets. Even the wallet creators cannot obtain the complete keys. The entire system requires no trust in any intermediaries from start to finish; all security comes from the decentralized protocol itself.
Unlike traditional MPC multi-signature solutions, zCloak offers self-custody guaranteed directly by the protocol. In an MPC architecture, the centralized server of the service provider must continuously participate in signing, which means user assets are always dependent on the ongoing operation of off-chain services. In the zCloak multi-signature wallet, once a transaction meets the criteria and is approved, the protocol will execute automatically, and no institution can intervene or refuse service. This is true self-custody—users not only have nominal control but can firmly grasp their assets in actual operations, relying on blockchain smart contracts rather than corporate policies for security.
Multi-chain multi-signature, all in one go.
With the chain fusion technology of ICP, the zCloak wallet natively supports multi-chain interaction. A one-time setup allows for the simultaneous deployment of multi-signature wallets across Bitcoin, Ethereum, various EVM-compatible chains, as well as emerging public chains like Solana and Sui. All wallets are synchronously generated at initialization, using the same governance structure and signer set.
This method does not rely on cross-chain bridges or wrapped assets but completes signing operations directly on the target chain, avoiding the repeated security risks exposed by cross-chain bridges. For enterprises, this means significantly simplifying liquidity management and financial operations: no need to maintain different approval systems, no need to repeatedly switch between multiple chains, no need to deploy multiple smart contracts, and no need to pay Gas fees for bridging each chain. Bitcoin reserves, Ethereum DeFi assets, and stablecoin funds can all be managed on a unified platform. A one-time setup provides lasting solutions.
Designed for enterprises, designed for frontline use.
The deployment of all multi-signature contracts does not require Gas fees. zCloak has completely eliminated the barriers for enterprises to deploy multi-signature wallets through a reverse gas model. Enterprises can create and configure wallets without pre-purchasing cryptocurrency, solving the long-standing issue in enterprise asset management of 'which comes first, assets or wallets.'
Combining Passkey technology with internet identity login, frontline personnel in enterprises can complete the entire process from decision-making to deployment in just a few minutes. Signers only need to use fingerprint or facial recognition to complete transaction approvals, no longer needing mnemonic phrases or complex key management. In terms of compliance and operations, zCloak also addresses the pain points of enterprise scenarios: supporting complete transaction logs and approval records, integrating with existing ERP systems, and providing role-based access control, scheduled payments, spending limits, delegated approvals, and other functions. These advanced intelligent features are capabilities that traditional crypto wallets find difficult to provide.
Percentage governance is more in line with reality.
Traditional multi-signature wallets use a rigid and crude N-of-M multi-signature model, which cannot reflect the true corporate structure. zCloak provides an approval mechanism based on proportion or weight: for example, 68% weight approval, with different signers having different percentage weights based on position or shareholding.
This makes governance more flexible: executives and boards can approve large transactions, with different assets setting different thresholds, allowing for quick processing in emergencies and subsequent audits. More importantly, the governance structure can be flexibly adjusted as the enterprise develops, without needing to change wallets or transfer assets between old and new wallets.
All these approval processes and weight data are encrypted through vetKey, maintaining privacy. External observers cannot infer the organizational structure. It truly realizes the integration of on-chain governance with real-world organizations.
Eliminate front-end tampering and eradicate industry vulnerabilities.
In February 2025, a well-known exchange lost over 1.6 billion dollars due to hackers embedding malicious code in the front end of their multi-signature wallet. The problem lies not in the blockchain protocol but in the fragile centralized front end. Attackers do not need to compromise the protocol itself; they just need to tamper with the front-end code deployed on Web2 servers to induce signers to mistakenly approve transactions.
zCloak's solution: an immutable front end + browser-native Passkey. The entire multi-signature wallet's SaaS website is directly on-chain, hosted in the ICP canister, with front-end encrypted transmission that cannot be modified. What users see is what they sign. Passkey completes the signing directly in the browser session, forming a complete encryption verification chain with the signing process. Front-end tampering, blind signing attacks, contract phishing—these long-standing attack risks troubling the entire Web3 industry become technically impossible with zCloak.
vetKey cryptography ensures financial privacy.
In most multi-signature wallets, transaction details and approval processes are public on the chain, and anyone can analyze them. zCloak, however, uses vetKey encryption technology to anonymize the entire multi-signature process. Sensitive information, such as transaction remarks, vendor information, payment purposes, and approval opinions, is encrypted and stored, visible only to authorized personnel. The threshold decryption mechanism ensures that no node can decrypt the data alone.
This allows enterprises to securely record strategic information, enabling boards to privately discuss acquisition plans, and recovery mechanisms will not be exposed to attackers. Outsiders cannot know who approved the transaction and cannot see internal discussions. Privacy and transparency are genuinely achieved for the first time.
Aiming for the future, laying the foundation.
The zCloak multi-signature wallet is not just a self-custody tool for corporate assets but also the infrastructure for future enterprise on-chain finance. It comprehensively enhances security, ease of use, governance, privacy, and multi-chain support, filling many industry gaps. Chain-key cryptography brings self-custody, vetKey ensures privacy, and the immutable front end guarantees interaction security. Unlike solutions that rely on centralized service providers, zCloak empowers users to maintain complete sovereignty over their assets through decentralized public chain protocols.
The hacker attack worth 1.6 billion dollars earlier this year marked a watershed moment in the industry. It proved that traditional multi-signature wallets are far from sufficient to meet the real needs of enterprises. zCloak's approach is to embed financial infrastructure directly into the protocol. Enterprises no longer need to compromise between security and ease of use, transparency and privacy. Self-custody is guaranteed by blockchain consensus, and the governance mechanism mirrors real-world organizations, with the system requiring no reliance on any external operations. The zCloak Network multi-signature wallet opens the door for enterprises to the blockchain era—secure, private, and uncompromising.
