char/matrix-rust-sdk
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity

crypto: Add some comments about the order of signature checks.

Browse source
This commit is contained in:
Damir Jelić 2020-08-19 15:35:34 +02:00
parent 56309ae12c
commit eb16737d3b
1 changed files with 9 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

9
matrix_sdk_crypto/src/device.rs
View file

@ -89,17 +89,26 @@ impl Device {
// only the identity is trusted, if the identity and the device are
// trusted.
if self.inner.trust_state() == LocalTrust::Verified {
// If the device is localy marked as verified just return so, no
// need to check signatures.
true
} else {
self.own_identity.as_ref().map_or(false, |own_identity| {
// Our own identity needs to be marked as verified.
own_identity.is_verified()
&& self
.device_owner_identity
.as_ref()
.map(|device_identity| match device_identity {
// If it's one of our own devices, just check that
// we signed the device.
UserIdentities::Own(_) => own_identity
.is_device_signed(&self.inner)
.map_or(false, |_| true),
// If it's a device from someone else, first check
// that our user has signed the other user and then
// checkif the other user has signed this device.
UserIdentities::Other(device_identity) => {
own_identity
.is_identity_signed(&device_identity)