The next evolution in Curv’s keyless cryptography

Curv Air Gap gives clients the ability to supplement their online transactional wallet with an offline, air-gapped machine
to securely sign transactions.

Clients benefit from the same level of security, flexibility and scalability they are used to with Curv’s standard wallet service, but now they have the option to designate wallet signing authority to either an online or offline device.

Why Curv Air Gap?

1.Easily Adapt to Regulatory Changes and Security Requirements

2.All the Benefits of Cold Wallets without any of the Security Risks or Operational Challenges

Curv Air Gap Benefits

KEYLESS CRYPTOGRAPHIC SECURITY AND THRESHOLD SIGNING

Curv’s security model utilizes MPC protocols, enabling transactions to be securely signed in a mathematically-proven, distributed way, without the use of a key. Any transaction signed by Curv’s air-gapped machine is approved systematically by a quorum. Unlike traditional cold storage, room for error or insider collusion is significantly reduced.

SOFTWARE DELIVERY

Curv Air Gap is a cloud-based, software solution. No specialized hardware or HSM is required. Any organizational machine can be converted into an air-gapped machine. In turn, set-up takes a matter of minutes and there is limited training required to be fully operational.

TOTAL AUTONOMY OVER ASSETS

Curv clients maintain unilateral autonomy over their assets at all times. Unlike cold storage which might require you to hand over autonomy to a service provider, Curv Air Gap ensures clients remain in complete control. Whether signed online or offline, clients have full possession over their
digital assets.

EASE OF OPERATIONS AND AVAILABILITY

The process of transferring assets to and from an air-gapped service, which is burdensome in traditional cold storage and disruptive to availability, is instead seamless and instant for clients signing transactions with Curv Air Gap. Multiple transactions can additionally be batched together.

REDUCED COSTS

Increased incremental costs traditionally associated with cold storage are eliminated with Curv Air Gap. Organizational headcount and time spent managing offline assets can instead be realigned for strategic use elsewhere across the organization. Institutions can unify services from multiple providers and use Curv for all online and offline security requirements.

FLEXIBLE DEPLOYMENT MODELS

Whether it’s changing regulations or risk management procedures that require assets to be air-gapped or signed offline in multiple jurisdictions, Curv Air Gap offers flexible deployment models. This flexibility is easily managed by the client using Curv’s platform and does not disrupt any pre-existing workflows.

“We face different regulatory requirements across the globe that dictate various offline storage models for key management and signing mechanisms.
Curv Air Gap allows us to quickly and easily meet those requirements, and to address key operational and security limitations of cold wallets.”

Israel Kalush

VP OF ENGINEERING, ETORO

How Curv Air Gap Works

1

Load Curv software onto designated air-gapped device (can be any machine)

2

Initiate a transaction on Curv’s online platform to withdraw from or deposit digital assets to a wallet

3

If the transaction is approved, based on the pre-defined policy, bring it from the online platform to the air-gapped device

4

Validate and sign the transaction on the air-gapped device and download the result

5

Bring signed transaction to Curv’s online platform where the transaction is broadcast to the blockchain

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