NCW Wallet -> Device ID

Developer Discussion
1

Device ID and wallet correlation

Each user can have multiple deviceId values, each correlating to a different Wallet (NCW) in Fireblocks. Each deviceId represents an entity that stores an end-user key share.

Hi,
i have a question. Does it mean, every wallet can only have one single deviceId , or does it mean one wallet, can have multiple deviceID , so user can login on multiple device ?

thanks.

2

sorry, my further question is , if the user have changed the device they use / using multiple devices, so for every devices, must have a different wallet ?

or this is the usecase of backup & recovery method?

3

Hello ace3, in the case of switching mobile device a user can have multiple deviceIds, as seen here Get registered devices get devices returns an array of objects containing DeviceId and Enabled:bool for a single walletId https://sandbox-api.fireblocks.io/v1/ncw/wallets/{walletId}/devices

Ideally you would disable the deviceId no longer inuse by setting enabled to false.

Regarding Backup & recovery the Fireblocks Non-Custodial Wallet (NCW) provides a backup and recovery mechanism to make sure that users can recover their keys even if their NCW device is lost or damaged.

4

Backup and Recovery Here is our help center article regarding device recovery and back up.

5

Hello Mohammed,

thank you for the reply. Now i understand it much better :pray: