commit 87f5b61237f4d83f6138f012f836775b3666f550
author Andrew Scull <ascull@google.com> Mon Oct 10 15:41:43 2022 +0000
committer Andrew Scull <ascull@google.com> Mon Oct 10 15:45:51 2022 +0000
tree 532a975a515cf8404bc7cd95b27fdfdef70fa65d
parent 3b80c9b14bd28c06f675f583e8b12693d9063705

Allow attestation chain to be up to 4k

The chains are currently around the 2k limit previously chosen. Bump
this to 4k to avoid running out of space before the retrieveal API gets
replaced with something that's actually useful.

Fix: 252775935
Test: atest MicrodroidTests
Test: atest ComposHostTestCases
Change-Id: I97a8d0c3aa2dfcd1adedf79b22d6c057b908ce2a

compos/compos_key_helper/compos_key_main.cpp

diff --git a/compos/compos_key_helper/compos_key_main.cpp b/compos/compos_key_helper/compos_key_main.cpp
index 77a9cf9..bb2bac8 100644
--- a/compos/compos_key_helper/compos_key_main.cpp
+++ b/compos/compos_key_helper/compos_key_main.cpp
@@ -57,7 +57,7 @@
 }
 
 int write_bcc() {
-    uint8_t bcc[2048];
+    uint8_t bcc[4096];
     size_t bcc_size = get_dice_attestation_chain(bcc, sizeof(bcc));
     if (bcc_size == 0) {
         LOG(ERROR) << "Failed to get attestation chain";

tests/testapk/src/native/testbinary.cpp

diff --git a/tests/testapk/src/native/testbinary.cpp b/tests/testapk/src/native/testbinary.cpp
index d1cfc56..ae7ce24 100644
--- a/tests/testapk/src/native/testbinary.cpp
+++ b/tests/testapk/src/native/testbinary.cpp
@@ -96,7 +96,7 @@
         }
 
         ndk::ScopedAStatus getBcc(std::vector<uint8_t>* out) override {
-            uint8_t bcc[2048];
+            uint8_t bcc[4096];
             size_t bcc_size = get_dice_attestation_chain(bcc, sizeof(bcc));
             if (bcc_size == 0) {
                 return ndk::ScopedAStatus::