// TokenAudiences specifies a list of audiences for SDS trustworthy JWT. This is to make sure that the CSR requests
	// contain the JWTs intended for Citadel.
	TokenAudiences = strings.Split(env.Register("TOKEN_AUDIENCES", "istio-ca",
		"A list of comma separated audiences to check in the JWT token before issuing a certificate. "+
			"The token is accepted if it matches with one of the audiences").Get(), ",")
)

const (