openmls/schedule/
application_export_tree.rs

1use openmls_traits::{crypto::OpenMlsCrypto, types::Ciphersuite};
2
3use crate::{
4    binary_tree::array_representation::TreeSize,
5    ciphersuite::Secret,
6    schedule::{
7        pprf::{Pprf, PprfError, Prefix16},
8        ApplicationExportSecret,
9    },
10};
11
12pub(crate) type ApplicationExportTree = Pprf<Prefix16>;
13
14/// Error constructing component secret from the exporter tree
15/// See [`PprfError`] for more details.
16pub type ApplicationExportTreeError = PprfError;
17
18impl ApplicationExportTree {
19    pub(crate) fn new(application_exporter: ApplicationExportSecret) -> Self {
20        let size = TreeSize::from_leaf_count(u16::MAX as u32);
21        Pprf::new_with_size(application_exporter.secret, size)
22    }
23
24    pub(crate) fn safe_export_secret(
25        &mut self,
26        crypto: &impl OpenMlsCrypto,
27        ciphersuite: Ciphersuite,
28        component_id: u16,
29    ) -> Result<Secret, ApplicationExportTreeError> {
30        self.evaluate(crypto, ciphersuite, &component_id)
31    }
32}

openmls/schedule/application_export_tree.rs

openmls/schedule/
application_export_tree.rs