[required] A list of server certificate thumbprints for the OpenID Connect (OIDC)
identity provider's server certificates. Typically this list includes
only one entry. However, IAM lets you have up to five thumbprints for an
OIDC provider. This lets you maintain multiple thumbprints if the
identity provider is rotating certificates.
The server certificate thumbprint is the hex-encoded SHA-1 hash value of
the X.509 certificate used by the domain where the OpenID Connect
provider makes its keys available. It is always a 40-character string.
You must provide at least one thumbprint when creating an IAM OIDC
provider. For example, assume that the OIDC provider is
server.example.com
and the provider stores its keys at
https://keys.server.example.com/openid-connect. In that case, the
thumbprint string would be the hex-encoded SHA-1 hash value of the
certificate used by https://keys.server.example.com.
For more information about obtaining the OIDC provider's thumbprint,
see Obtaining the Thumbprint for an OpenID Connect Provider
in the IAM User Guide.