sec_protocol_metadata_create_secret(_:_:_:_:)

Declaration

func sec_protocol_metadata_create_secret(_ metadata: sec_protocol_metadata_t, _ label_len: Int, _ label: UnsafePointer<CChar>, _ exporter_length: Int) -> dispatch_data_t?

Parameters

• metadata:

  A sec_protocol_metadata_t instance.

• label_len:

  Length of the KDF label string.

• label:

  KDF label string.

• exporter_length:

  Length of the secret to be exported.

Return Value

Returns a dispatch_data_t object carrying the exported secret.

Discussion

Export a secret, e.g., a cryptographic key, derived from the protocol metadata using a label string.