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Credentials

Each identity has one or more credentials associated with it:

credentials:
  password:
    id: password
    identifiers:
      - john.doe@acme.com
      - johnd@ory.sh
    config:
      hashed_password: ...
  oidc:
    id: oidc
    identifiers:
      - google:j8kf7a3...
      - facebook:83475891...
    config:
      - provider: google
        identifier: j8kf7a3
      - provider: facebook
        identifier: 83475891

Ory Identities supports several credential types:

  • password: The most common identifier (username, email, ...) + password credential.
  • oidc: The "Log in with Google/Facebook/GitHub/..." credential.
  • Other credentials - support other credential types (X509 Certificates, Biometrics, ...) that will be added at a later stage.

Each credential - regardless of its type - has one or more identifiers attached to it. Each identifier is universally unique. Assuming we had one identity with credentials

credentials:
  password:
    id: password
    identifiers:
      - john.doe@acme.com

and tried to create (or update) another identity with the same identifier (john.doe@acme.com), the system would reject the request with a 409 Conflict state.

While credentials must be unique per type, there can be duplicates amongst multiple types:

# This is ok:
credentials:
  password:
    id: password
    identifiers:
      - john.doe@acme.com
  oidc:
    id: oidc
    identifiers:
      - john.doe@acme.com

The same would apply if those were two separate identities:

# Identity 1
credentials:
  password:
    id: password
    identifiers:
      - john.doe@acme.com
---
# Identity 2
credentials:
  oidc:
    id: oidc
    identifiers:
      - john.doe@acme.com