SAML 2.0

Options common to SAML 2.0 profiles:

Name	Type	Default	Description
encryptionOptional	Boolean	false	Whether to automatically disable encryption if the relying party does not possess a suitable key
encryptAssertions	Predicate<ProfileRequestContext>	varies by profile	Whether to encrypt assertions
encryptNameIDs	Predicate<ProfileRequestContext>	varies by profile	Whether to encrypt NameIDs
encryptAttributes	Predicate<ProfileRequestContext>	false	Whether to encrypt attributes

Guidance

The encryption options are generally set correctly for each different profile; see the notes on the individual profile pages. We provide Spring support so you can just set them to "true" or "false" as though they are boolean-valued, but they also directly support the more dynamic approach of deriving the value with a bean.

Note that when the conditions to encrypt various constructs evaluate to true, the IdP will fail the request if it is unable to perform the encryption, for whatever reason. This is overrideable using the encryptionOptional property, which allows the IdP to encrypt if it can but continue otherwise. If you carefully control your metadata sources, which you should do in any case, you should be able to trust that any SP lacking an encryption key is incapable of encryption anyway, making the property safe to enable.

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