DACC Custody Cold Wallet
Enterprise-grade digital asset cold wallet custody solution for financial institutions
Built on "Air-gapped HSM Private Key Management + Multi-approval Workflow + KYT/AML Risk Control", providing secure, compliant, and operational all-in-one custody capabilities.
Core Features
Complete private key lifecycle management
HSM Private Key Management
- Full lifecycle managed by HSM: generation, storage, signing
- Online + offline dual control, multi-role separation
- Deployable in institution-specified environments
Multi-layer Authorization
- Wallet rule engine (Requester/Approver, M-of-N)
- Multi-identity verification (2FA, Auth App, Yubikey)
- Hierarchical thresholds and duty separation
Compliance & Risk Control
- Built-in KYT/AML checks and whitelist management
- Standardized deposit/withdrawal processes
- Auditable operation records
Why DACC
Three core advantages
Security First
Air-gapped signing architecture
- HSM and KMS deployed in air-gapped environment
- Transaction signing via QR Code offline data transfer
- HSM only executes: address generation & transaction signing
Compliance Ready
Process as control
- Built-in KYT/AML checks and whitelist management
- Standardized deposit/withdrawal workflows
- Multi-factor authentication and duty separation
Scalable Operations
All-in-one platform
- User Portal + Admin Portal integrated
- Wallet rules (Requester/Approver, M-of-N, tiered thresholds)
- Expandable by business needs: coins, chains, workflows
How It Works
Five-step secure transaction flow
Frontend Initiation
Requester initiates transaction per wallet permissions
Frontend Authorization
Approver completes authorization per thresholds
Backend Release
Supervisor + Auth App complete verification
Air-gapped Signing
KMS/HSM signs offline (QR Code transfer)
On-chain Broadcast
Signed transaction submitted to blockchain
Governance by Design
Role separation and multi-layer control
Frontend Roles
Backend Roles
Through role separation and multi-layer control design, reduce single-point risk and enhance internal control strength.
Use Cases
Applicable scenarios
Financial Institution Custody
Digital asset custody for banks, securities firms, and trust companies
High-value Asset Cold Storage
Cold storage and tiered approval for high-value assets
Regulatory Compliance
Institutional wallet operations meeting regulatory/audit requirements
RWA & Cross-border Payments
Custody infrastructure for RWA, cross-border payments, and more
Certifications & Compliance
Industry-leading security standards
SOC 2 Type I/II
Custody process & operations
Security Testing
Third-party gray-box testing
Insurance Support
SPECIE / CRIME underwriting
Licensed Operations
US, Hong Kong licensed custody
Upgrade custody from "usable" to "regulatable, auditable, scalable"
Contact DACC team for customized deployment and PoC planning