apkverify: Add function to pick v4 apk digest
The v4 signing scheme includes an APK digest to match the strongest
digest available in the v3 or v2. Add a function to extract that digest
from an APK.
Test: libapkverify.test
Bug: 234564414
Change-Id: I69ce9c9c5ff6daf1f09e1bd4620ebf1ce015b5fa
diff --git a/libs/apkverify/src/lib.rs b/libs/apkverify/src/lib.rs
index 290a79a..c5aa9e5 100644
--- a/libs/apkverify/src/lib.rs
+++ b/libs/apkverify/src/lib.rs
@@ -24,4 +24,4 @@
mod ziputil;
// TODO(jooyung) fallback to v2 when v3 not found
-pub use v3::{get_public_key_der, verify};
+pub use v3::{get_public_key_der, pick_v4_apk_digest, verify};