Wallets
Wallet is an essential component that allows you to sign and issue Verifiable Credentials that users can claim and store in their Affinidi Vault. Each wallet is created with a unique Decentralised Identifier (DID) value that is used to represent a particular subject. It is used to sign the credentials to prevent tampering with information and allow the verifier to validate its authenticity cryptographically.
The Decentralised Identifier (DID) could represent a user, a company, or a device/machine.
Example: did:key:z6MkhaXgBZDvotDkL5257faiztiGiC2QtKLGpbnnEGta2doK.
Supported DID Methods
Every Decentralised Identifier (DID) is prefixed with a DID method that defines the mechanism to resolve and get the associated DID document used for verifying the credential.
The Affinidi Trust Network supports the following DID methods when creating a wallet:
did:key
The did:key method represents individuals.
One of the key benefits of did:key is the implementation of “the right to be forgotten” to stay compliant with privacy policies like GDPR, which is impossible with the methods that rely on blockchains.
It is a scalable DID method that doesn’t require a lot of surrounding infrastructure and blockchains. The challenges with did:key arise when you start looking into concerns like key management, which is why relying solely on did:key for all interactions, especially business, is not advisable.
The Affinidi Vault assigns did:key to users when they register for an account. Read more about the did:key method here.
Example: did:key:z6MkhaXgBZDvotDkL5257faiztiGiC2QtKLGpbnnEGta2doK
did:web
The did:web method represents a host or a fully qualified domain name.
It requires the implementation of TLS/SSL certificate on the domain that hosts the DID document and allows rotation of the verification key while keeping the same DID value, making it more secure.
Additionally, credentials signed by did:web is traceable back to the source, like a website, making this method suitable to represent a business entity that owns the domain, enabling verifiers to validate the credential’s authenticity.
Domain Verification service uses did:web to represent the domain when verifying the domain ownership and display a verified checkmark in the Affinidi Vault consent screen. Read more about the did:web method here.
Example: did:web:mywebsite.com
Tip
Use the tool DIF Universal Resolver to view the DID document associated with the DID value after creating a wallet.How to Create a Wallet
To create a wallet, go to the Wallets page under Tools section in the 
Affinidi Portal.
- Once you are on the Wallets page, click on Create Wallet button.
- Set the name and description to help you identify the purpose of the Wallet. Select the DID method that will be use to create the Wallet. If you select did:web, you have to provide the domain that support HTTPS protocol.
- Click on Submit and your wallet will be created with the DID information.
Wallet is used to sign the Verifiable Credentials in Credential Issuance and claim the credential into the Affinidi Vault.
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