View source for ICP custody with NNS frontend dapp


Currently, the easiest custody option is via the NNS Frontend Dapp.

==Custody using the NNS Frontend dapp==

On a '''networked smartphone''' or '''networked computer''', do the following:

===1. Log into [https://nns.ic0.app/ NNS Frontend Dapp]===

[[File:nns-frontend-dapp-login.png|256px|nns frontend dapp login]]

===2. Log in with Internet Identity===

You can make an [https://identity.ic0.app/ Internet Identity] if you do not already have one

===3. Add multiple devices===

Strictly speaking, you do not need to add multiple devices, but it is highly recommended so you do not lose your ICP in case you lose your device.

===4. Send ICP to your unique account===

Within NNS Frontend dapp, navigate to the '''ICP''' tab

[[File:nns-frontend-dapp.png|512px|nns frontend dapp]]

Account should look something like this 

<code>723cd441238da744a097c3a20f8f4050d8355afb46fe12a1428a63996c37d918</code>

The NNS frontend dapp is now your custody solution.

==Decisions user needs to make ==

===How do you authenticate to Internet Identity?===

[https://identity.ic0.app/ Internet Identity] does '''not''' use passwords and usernames to log in. Internet Identity takes advantage of the Web Authentication (WebAuthn) API to provide secure cryptographic authentication. This means that you authenticate by "something you have" (e.g a phone, yuibkey, etc...) instead of "something you know" (e.g. a password).

From the point of view of the user, a user would use the following methods to authenticate:

#Computers
##Yubikey (with computers with USB ports)
##Thumbprint (with computers with electronic fingerprint recognition features like [https://en.wikipedia.org/wiki/Touch_ID Touch ID])
#Smartphones
##Face ID (for smartphones with facial recognition systems)
##Thumbprint (for  computers with electronic fingerprint recognition features like [https://en.wikipedia.org/wiki/Touch_ID Touch ID])

===2. If I lose my device, can I still use Internet Identity?===

If you have an Identity Anchor tied to only one device and you lose that one device, you will be locked out. As a best practice, we recommend [https://sdk.dfinity.org/docs/ic-identity-guide/auth-how-to.html adding multiple devices and recovery mechanisms] to each Identity Anchor.

===3. How do I add more devices to my Identity Anchor?===

To add more devices to an existing Identity Anchor, [https://sdk.dfinity.org/docs/ic-identity-guide/auth-how-to.html#_add_a_device please see the guide here].

==Features==

The dapp supports the following actions:

* Receive/send ICP
* Stake a neuron
* View neurons
* Dissolve a neuron
* Disburse a neuron
* Increase dissolve delay of neurons
* Connect hardware wallet such as for [[ICP custody with Ledger Nano]]

==Trade-offs and risks==

If you use this combination, you are accepting the following trade-offs:

* '''Risk of losing access''' - If you only have 1 device tied to your [https://identity.ic0.app/ Internet Identity], and you lose that device, you lose all access. You should add multiple devices in case one of them malfunctions. For example, if you have only one iPhone attached as a device to your Internet Identity, you are risking your ICP on that iPhone's Face Id always recognizing you. If it cannot, then you lost access to your ICP. Similarly, if you lose your phone, you would lose your ICP.

* '''Risk your devices do not support it''' - Not all devices and browsers support WebAuthn, so this option is sometimes not available.

* '''Risk of browser or NNS dapp or II being compromised'''- You are accepting the risk that the browser used (e.g. Chrome, Firefox, Explorer, Opera, Safari, Brave, etc...) or the [https://github.com/dfinity/nns-dapp community-vetted NNS Frontend dapp] or [https://medium.com/dfinity/verifying-the-internet-identity-code-a-walkthrough-c1dd7a53f883) community-vetted Internet Identity canister] are not compromised

==See Also==
* [[Managing ICP holdings]]
* [[ICP custody options]]