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Tao Bao c218a470fb Support replacing AVB signing keys. 
sign_target_files_apks.py now supports signing targets using verified
boot 2.0 (aka AVB). It allows replacing AVB signing keys for both of
chained and non-chained partitions.

An example command line looks as follows.
 $ ./build/tools/releasetools/sign_target_files_apks.py \
     --avb_vbmeta_key external/avb/test/data/testkey_rsa2048.pem \
     --avb_vbmeta_algorithm SHA256_RSA2048 \
     --avb_vbmeta_extra_args \
         "--signing_helper_with_files ./signing-helper.sh" \
     --avb_system_key external/avb/test/data/testkey_rsa4096.pem \
     --avb_system_algorithm SHA256_RSA4096 \
     --avb_system_extra_args \
         "--signing_helper_with_files ./signing-helper.sh" \
     product-target_files.eng.zip signed-product-target_files.zip

To verify the signed images:
 $ unzip signed-product-target_files.zip IMAGES/\*
 $ avbtool verify_image --image IMAGES/vbmeta.img \
     --expected_chain_partition system:1:testkey_rsa4096_pub.pem \
     --key external/avb/test/data/testkey_rsa2048.pem

Bug: 38315721
Test: sign_target_files_apks.py on AVB-enabled target w/ and w/o chained
      partitions respectively. Check the signing command lines; validate
      the signed images with 'avbtool verify_image'.
Change-Id: Ia009555b16ddb6d8ba6a0858d5ca7d983bbab887
(cherry picked from commit 639118ff4d)
2017-06-28 12:38:32 -07:00
core Merge "Move /default.prop to /system/etc/prop.default" into oc-dr1-dev 2017-06-28 06:28:10 +00:00
target Merge "Update new HIDL interfaces in generic system image" into oc-dr1-dev 2017-06-28 07:40:58 +00:00
tests Only set TARGET_PLATFORM version in lunch when explicitly requested 2017-05-01 14:26:40 -07:00
tools Support replacing AVB signing keys. 2017-06-28 12:38:32 -07:00
.gitignore
Android.mk Add new Android.mk to handle repo move 2016-06-16 15:30:19 -07:00
buildspec.mk.default Add TARGET_PLATFORM_VERSION to lunch 2017-03-23 09:44:08 -07:00
CleanSpec.mk Move version checking to soong_ui 2017-05-15 14:02:38 -07:00
envsetup.sh Merge "Teach mgrep to find soong/*.go files." am: 46d9bf8f9a am: bb67e3ae54 am: f515b91b3f 2017-05-18 18:29:40 +00:00