commit 23ba59e60ffe386e1f7a35883355aefa6fa9089d
author xunchang <xunchang@google.com> Mon Apr 08 23:02:28 2019 -0700
committer Tianjie Xu <xunchang@google.com> Thu Apr 11 21:05:10 2019 +0000
tree 05d6e5b23a3ce3ee85e2ebda6c606b5fef4f4359
parent f89078f77a1d0565142ee24e5cec865b14fd0401

Support signature size of 512 bytes

The signature size will be 512 bytes for the payload signed
with 4096 bits RSA key.

Bug: 129163830
Test: generate and verify an OTA
Change-Id: I18710218e4a3a030e257c594f416831cbfa8c041
(cherry picked from commit 3dbe64e9f2e3b1ef9b3eb2b1e7a42e4cb4af1b89)

payload_generator/generate_delta_main.cc

diff --git a/payload_generator/generate_delta_main.cc b/payload_generator/generate_delta_main.cc
index de0a091..3cb891f 100644
--- a/payload_generator/generate_delta_main.cc
+++ b/payload_generator/generate_delta_main.cc
@@ -63,8 +63,8 @@
     bool parsing_successful = base::StringToInt(str, &size);
     LOG_IF(FATAL, !parsing_successful) << "Invalid signature size: " << str;
 
-    LOG_IF(FATAL, size != (2048 / 8))
-        << "Only signature sizes of 256 bytes are supported.";
+    LOG_IF(FATAL, size != 256 && size != 512)
+        << "Only signature sizes of 256 or 512 bytes are supported.";
 
     signature_sizes->push_back(size);
   }